🚀 Auto-deploy: melhoria no snap e medição AR em 11/06/2026 14:55:19

🚀 Auto-deploy: melhoria no snap e medição AR em 11/06/2026 14:07:02
🚀 Auto-deploy: melhoria no snap e medição AR em 10/06/2026 23:57:45
2026-06-11 14:55:19 +00:00 · 2026-06-11 14:07:02 +00:00 · 2026-06-10 23:57:45 +00:00 · 2026-06-10 20:53:22 +00:00 · 2026-06-03 10:31:54 +00:00 · 2026-06-03 10:25:47 +00:00
59 changed files with 5506 additions and 526 deletions
@@ -1,47 +0,0 @@
-## Objetivo
-
-Adicionar uma ferramenta de **corte de seção** (clipping planes) nos eixos X, Y e Z — padrão em viewers IFC/BIM. O usuário move sliders por eixo e a peça vai sendo cortada/revelada em tempo real. Implementada como **janela pop-up flutuante** sobre o viewer, com controle de opacidade da própria janela. Sem presets persistidos.
-
-## UX
-
-### Botões na barra `ViewerControls`
- **"Cortes"** (ícone `Scissors`) — abre/fecha a janela pop-up. O estado dos cortes é independente da janela: fechar não reseta nada.
- **Lixeira** ao lado, só fica habilitada quando há pelo menos um eixo de corte ativo. Clicar = `resetSection()` (desliga e zera os 3 eixos). Único caminho para zerar.
- Indicador visual no botão "Cortes" quando há corte ativo (badge ou variante `default`).
-
-### Pop-up (componente `SectionCutPanel`)
- Janela flutuante sobre o viewer (canto superior-direito da área 3D), arrastável pelo header. Não-modal.
- Estilo: `bg-card/X` + `backdrop-blur`, borda industrial, font-mono.
- **Header**: título "Cortes de Seção", slider de **opacidade da janela** (20%–100%, default 90%), botão fechar (X).
- **3 blocos idênticos** para X / Y / Z, cada um com controle individual:
-  - Switch on/off do eixo.
-  - Switch "Inverter" (flip do lado mantido).
-  - Slider do nível de corte mapeado ao bbox mundial da peça ativa naquele eixo, valor em mm.
-  - Mini-botões: **Min** · **Centro** · **Max** para saltar a posição.
- Botão **"Recalcular limites"** (re-amostra o bbox depois de calibração/fine-tuning).
- Sem botões de salvar/memória.
- Fechar a janela apenas oculta os controles. Reabrir mostra exatamente o estado dos cortes que o usuário deixou.
-
-## Comportamento técnico
-
- `gl.localClippingEnabled = true` no `onCreated` do `<Canvas>`.
- Novos campos em `useModelStore` (não persistidos):
-  - `sectionEnabled: { x: boolean; y: boolean; z: boolean }`
-  - `sectionInvert: { x: boolean; y: boolean; z: boolean }`
-  - `sectionLevel: { x: number; y: number; z: number }` (em metros, mundo)
-  - `sectionPanelOpen: boolean`
-  - `sectionPanelOpacity: number` (0.2–1)
-  - Setters por eixo + `resetSection()` (zera enabled, invert e leva level ao centro do bbox).
-  - Helper `hasActiveSection()` derivado de `sectionEnabled`.
- Novo componente `<SectionClippingApplier>` montado dentro do `<Canvas>`:
-  - Mantém 3 `THREE.Plane` reutilizáveis. A cada mudança nos campos do store, atualiza `plane.normal` (com sinal flipado se `invert`) e `plane.constant = -level` (axis-aligned, mundo).
-  - Aplica `material.clippingPlanes = ativos` em cada `Mesh` dos grupos registrados em `modelTransforms`. Restaura `[]` ao desligar todos os eixos.
- Limites dos sliders: bbox mundial agregado dos `getAllModelLocalGroups()`. Calculado quando o painel abre e quando o usuário aciona "Recalcular limites".
-
-## Arquivos afetados
-
- `src/stores/useModelStore.ts` — novos campos e setters de seção + painel.
- `src/components/three/ModelViewer.tsx` — `localClippingEnabled` no GL; monta `<SectionClippingApplier>`.
- `src/components/SectionCutPanel.tsx` (novo) — janela pop-up flutuante com 3 sliders, switches, opacidade.
- `src/components/ViewerControls.tsx` — botão "Cortes" + lixeira condicional.
- `src/pages/Viewer.tsx` — monta `<SectionCutPanel />` na área do viewer.
@@ -4,9 +4,11 @@
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <!-- TODO: Set the document title to the name of your application -->
-    <title>TrackSteelXR</title>
+    <title>SteelXR</title>
    <meta name="description" content="VR tool   inspection industrial Q.C.">
    <meta name="author" content="Lovable" />
+    <link rel="icon" type="image/png" href="/iconeXR_transparente.png" />
+    <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />

    <!-- TODO: Update og:title to match your application name -->
    
@@ -17,8 +19,8 @@
    <meta name="twitter:card" content="summary_large_image" />
    <meta name="twitter:site" content="@Lovable" />
    <meta name="twitter:image" content="https://storage.googleapis.com/gpt-engineer-file-uploads/attachments/og-images/a850c4e4-56e7-4358-91d7-b33ddcd600ac?Expires=1772161962&amp;GoogleAccessId=go-api-on-aws%40gpt-engineer-390607.iam.gserviceaccount.com&amp;Signature=Q%2B%2F2EsHIygjuVQKvjQWWytqElhVjmehhRIdWJ1eYRremdUzoUIv36NuXp042g0lBzszDBa14EbkCTYykUEMpqrclTioA2035aKEY%2BR39jqYm7oBKXCm2rs2vopnW2ahZYf8SjX5SPqxwFzaO%2FvJt71rMU0A6PzihBNRa96ezpIhxGqzpbZe9zP4PtyRhg03aCp5sJytJp9bBOphzXb9YGeY58XWWqjAqEO1tctOGh25hZsYLgEU61wy3xnehDc8kZ%2FK0MpRpxuGibae5ypjDtGbXf9G5LjSWYecVY5pWOjnO6ZSo1CL8DaWtD%2FU3V0MszZ8f4SETk7fQAh0GR4b8Sg%3D%3D">
-    <meta property="og:title" content="TrackSteelXR">
-  <meta name="twitter:title" content="TrackSteelXR">
+    <meta property="og:title" content="SteelXR">
+  <meta name="twitter:title" content="SteelXR">
  <meta property="og:description" content="VR tool   inspection industrial Q.C.">
  <meta name="twitter:description" content="VR tool   inspection industrial Q.C.">
 </head>
@@ -1,7 +1,7 @@
 {
  "name": "vite_react_shadcn_ts",
  "private": true,
-  "version": "1.0.4",
+  "version": "1.1.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
@@ -0,0 +1,65 @@
+from PIL import Image
+import numpy as np
+
+def remove_black_background(img_path, out_path, t_low=32, t_high=80):
+    # Carregar imagem e garantir modo RGBA
+    img = Image.open(img_path).convert("RGBA")
+    data = np.array(img)
+    
+    # Extrair canais
+    r, g, b, a = data[:,:,0], data[:,:,1], data[:,:,2], data[:,:,3]
+    
+    # O valor de brilho de cada pixel é dado pelo máximo dos canais R, G, B
+    max_rgb = np.fmax(np.fmax(r, g), b)
+    
+    # Criar nova imagem com o mesmo tamanho
+    new_data = np.zeros_like(data)
+    
+    # Calcular o novo alpha com base na rampa de threshold
+    # Se max_rgb <= t_low -> alpha = 0
+    # Se max_rgb >= t_high -> alpha = max_rgb (ou 255 se quisermos opacidade total)
+    # Se t_low < max_rgb < t_high -> interpolação linear
+    
+    new_alpha = np.zeros_like(max_rgb, dtype=float)
+    
+    # Máscara para pixels totalmente opacos (ou usando o brilho original)
+    mask_full = max_rgb >= t_high
+    # Opcionalmente, definimos opacidade 255 para o miolo brilhante do logotipo para ficar bem nítido
+    new_alpha[mask_full] = 255.0
+    
+    # Máscara para pixels de transição (antialiasing)
+    mask_trans = (max_rgb > t_low) & (max_rgb < t_high)
+    new_alpha[mask_trans] = 255.0 * (max_rgb[mask_trans] - t_low) / (t_high - t_low)
+    
+    # Converter alpha final para uint8
+    final_alpha = np.clip(new_alpha, 0, 255).astype(np.uint8)
+    
+    # Máscara de pixels visíveis
+    mask_visible = final_alpha > 0
+    
+    # Inicializar os canais de cores com zeros
+    new_data[:,:,0] = 0
+    new_data[:,:,1] = 0
+    new_data[:,:,2] = 0
+    new_data[:,:,3] = final_alpha
+    
+    # Aplicar unmultiplying alpha nas cores para remover o halo escuro e clarear pixels de transição
+    alpha_float = final_alpha.astype(float)
+    for i in range(3):
+        channel = data[:,:,i].astype(float)
+        adjusted = np.zeros_like(channel)
+        # Onde for visível, recuperamos a cor original. 
+        # Para evitar divisão por zero, usamos a máscara de pixels visíveis
+        adjusted[mask_visible] = np.minimum(255, (channel[mask_visible] * 255.0 / np.maximum(1.0, max_rgb[mask_visible])))
+        new_data[:,:,i] = adjusted.astype(np.uint8)
+        
+    # Salvar a nova imagem
+    out_img = Image.fromarray(new_data, "RGBA")
+    out_img.save(out_path, "PNG")
+    print(f"Processada com sucesso: {img_path} -> {out_path} (T_low: {t_low}, T_high: {t_high})")
+
+if __name__ == "__main__":
+    # O logotipo tem fundo com brilho aproximado de 28
+    remove_black_background("logotipo_steelXR.png", "public/logotipo_steelXR_transparente.png", t_low=32, t_high=75)
+    # O ícone tem fundo com brilho de 9
+    remove_black_background("iconeXR.png", "public/iconeXR_transparente.png", t_low=12, t_high=50)
@@ -7,6 +7,7 @@ import Index from "./pages/Index";
 import Viewer from "./pages/Viewer";
 import XRSession from "./pages/XRSession";
 import Watch from "./pages/Watch";
+import MeetingRoom from "./pages/MeetingRoom";
 import NotFound from "./pages/NotFound";
 import "@/lib/remoteLogger";

@@ -23,6 +24,8 @@ const App = () => (
          <Route path="/viewer" element={<Viewer />} />
          <Route path="/xr" element={<XRSession />} />
          <Route path="/watch/:code" element={<Watch />} />
+          <Route path="/meeting" element={<MeetingRoom />} />
+          <Route path="/meeting/:roomId" element={<MeetingRoom />} />
          <Route path="*" element={<NotFound />} />
        </Routes>
      </BrowserRouter>
@@ -16,7 +16,7 @@ import { addRecentFile } from '@/lib/recentFiles';
 const DEFAULT_URL = 'https://store.tracksteel.com.br/demo.ifc';

 const PRESETS: { label: string; url: string }[] = [
-  { label: 'Demo IFC (TrackSteel)', url: DEFAULT_URL },
+  { label: 'Demo IFC (SteelXR)', url: DEFAULT_URL },
 ];

 /** Normaliza URLs de Dropbox / OneDrive para apontar ao binário direto. */
@@ -0,0 +1,76 @@
+import { ShieldCheck, Ruler, Scissors, ArrowRight } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+
+export function LandingContent() {
+  return (
+    <div className="w-full max-w-4xl mx-auto space-y-12 py-12">
+      {/* Hero Section */}
+      <section className="text-center space-y-6 px-4">
+        <h2 className="text-4xl md:text-5xl font-bold tracking-tight text-foreground">
+          Controle total da qualidade em obras metálicas e civis — <br className="hidden md:block" />
+          <span className="text-primary">direto no canteiro, em Realidade Aumentada.</span>
+        </h2>
+        <p className="text-lg text-muted-foreground max-w-2xl mx-auto">
+          visualize. Meça. inspire confiança.
+        </p>
+      </section>
+
+      {/* Benefits Section */}
+      <section className="grid md:grid-cols-3 gap-6 px-4">
+        <div className="rounded-xl border bg-card p-6 space-y-4 hover:border-primary/50 transition-colors">
+          <div className="h-12 w-12 rounded-lg bg-primary/10 flex items-center justify-center">
+            <ShieldCheck className="h-6 w-6 text-primary" />
+          </div>
+          <h3 className="text-lg font-semibold text-foreground">
+            Inspeção por Checklist Digital com Gravação de Voz
+          </h3>
+          <p className="text-sm text-muted-foreground">
+            Elimine planilhas de papel. Faça inspeções de qualidade diretamente no modelo 3D, com aprovação ou reprovação de cada item e anotações por voz — tudo rastreável e auditável.
+          </p>
+        </div>
+
+        <div className="rounded-xl border bg-card p-6 space-y-4 hover:border-primary/50 transition-colors">
+          <div className="h-12 w-12 rounded-lg bg-primary/10 flex items-center justify-center">
+            <Ruler className="h-6 w-6 text-primary" />
+          </div>
+          <h3 className="text-lg font-semibold text-foreground">
+            Medições Precisas em AR com Snap Inteligente
+          </h3>
+          <p className="text-sm text-muted-foreground">
+            O controlador XR identifica automaticamente vértices, arestas e furos nos modelos IFC. O resultado são medições em milímetros reais, sem depender de trena ou cálculos manuais.
+          </p>
+        </div>
+
+        <div className="rounded-xl border bg-card p-6 space-y-4 hover:border-primary/50 transition-colors">
+          <div className="h-12 w-12 rounded-lg bg-primary/10 flex items-center justify-center">
+            <Scissors className="h-6 w-6 text-primary" />
+          </div>
+          <h3 className="text-lg font-semibold text-foreground">
+            Cortes de Seção Interativos para Análise Estrutural
+          </h3>
+          <p className="text-sm text-muted-foreground">
+            Visualize o interior de estruturas metálicas com cortes dinâmicos nos eixos X, Y e Z — sem desmontar nada. Ideal para validar projetos complexos antes da montagem.
+          </p>
+        </div>
+      </section>
+
+      {/* Final CTA Section */}
+      <section className="px-4 text-center space-y-6">
+        <div className="rounded-2xl border border-border bg-gradient-to-b from-card to-muted/20 p-8 md:p-12">
+          <p className="text-muted-foreground max-w-2xl mx-auto text-base md:text-lg leading-relaxed">
+            Atrasos por erros de medição, retrabalho por falhas de comunicação e perdas por não conformidade são o pesadelo de qualquer gestão de produção metalmecânica ou obra civil. O SteelXR coloca o modelo 3D IFC no canteiro — em AR — para que engenheiros e gestores tomem decisões precisas no momento certo. <span className="font-semibold text-foreground">Menos retrabalho, mais produtividade, entregas dentro do prazo.</span>
+          </p>
+          <div className="mt-8 flex justify-center gap-4">
+            <Button size="lg" className="gap-2">
+              Começar Agora
+              <ArrowRight className="h-4 w-4" />
+            </Button>
+            <Button size="lg" variant="outline" className="gap-2">
+              Ver Demonstração
+            </Button>
+          </div>
+        </div>
+      </section>
+    </div>
+  );
+}
@@ -130,7 +130,7 @@ export function ShareButton({ variant = 'default', autoOpen, onHandleChange, onV
    if (navigator.share) {
      try {
        await navigator.share({
-          title: 'TrackSteelXR — Sessão ao vivo',
+          title: 'SteelXR — Sessão ao vivo',
          text: 'Acompanhe a inspeção ao vivo:',
          url: link,
        });
@@ -13,7 +13,7 @@ import {
 } from './three/viewCubeBus';
 import { useModelStore } from '@/stores/useModelStore';
 import { getModelLocalGroup } from '@/lib/modelTransforms';
-import { Check, RotateCcw } from 'lucide-react';
+import { Check, RotateCcw, Maximize2 } from 'lucide-react';
 import { toast } from 'sonner';

 /** Builds a square canvas texture with a label centered on it. */
@@ -296,6 +296,23 @@ export function ViewCube() {
          <RotateCcw className="h-2.5 w-2.5" /> reset
        </button>
      )}
+
+      {/* Botão de Tela Cheia */}
+      <button
+        type="button"
+        onClick={() => {
+          const container = document.getElementById("canvas-container");
+          if (container) {
+            container.requestFullscreen().catch((err) => {
+              toast.error("Não foi possível entrar em tela cheia: " + err.message);
+            });
+          }
+        }}
+        className="flex h-7 w-full items-center justify-center gap-1 rounded border border-primary/40 bg-background/40 font-mono text-[10px] uppercase tracking-widest text-primary hover:bg-primary/10 transition-colors"
+        title="Entrar em modo tela cheia"
+      >
+        <Maximize2 className="h-3 w-3" /> Tela Cheia
+      </button>
    </div>
  );
 }
@@ -1,4 +1,4 @@
-import { Eye, Grid3X3, Ruler, Trash2, Camera, LayoutGrid, Palette, Box, Move3D, Undo2, MousePointerClick, EyeOff, Focus, Download, Square, Scissors } from 'lucide-react';
+import { Eye, Grid3X3, Ruler, Trash2, Camera, LayoutGrid, Palette, Box, Move3D, Undo2, MousePointerClick, EyeOff, Focus, Download, Square, Scissors, Footprints } from 'lucide-react';
 import { Slider } from '@/components/ui/slider';
 import { Button } from '@/components/ui/button';
 import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/popover';
@@ -31,6 +31,7 @@ export function ViewerControls() {
    wireframeThickness, setWireframeThickness,
    edgeThresholdAngle, setEdgeThresholdAngle,
    positionMode, setPositionMode,
+    walkMode, setWalkMode,
    activeModelId, models,
    selectionMode, setSelectionMode,
    selectedElementKeys, hiddenElementKeys, isolatedElementKeys,
@@ -268,6 +269,25 @@ export function ViewerControls() {
        </span>
      </Button>

+      {/* Walk mode */}
+      <Button
+        variant={walkMode ? 'default' : 'outline'}
+        size="sm"
+        className="gap-2 h-9"
+        onClick={() => {
+          if (!walkMode) {
+            toast.info("Modo Caminhada: Use WASD para andar, Q/E para subir/descer e o mouse para olhar. ESC para sair.");
+          }
+          setWalkMode(!walkMode);
+        }}
+        title="Modo primeira pessoa (WASD mover, Q/E subir/descer)"
+      >
+        <Footprints className="h-3.5 w-3.5" />
+        <span className="font-mono text-xs">
+          Caminhar
+        </span>
+      </Button>
+
      {/* Measure tool */}
      <div className="flex items-end gap-1.5">
        <Button
@@ -1,116 +1,230 @@
-import { useRef, RefObject } from 'react';
+import { useRef, useState } from 'react';
 import { useFrame, useThree } from '@react-three/fiber';
 import { useXR } from '@react-three/xr';
 import * as THREE from 'three';
+import { getAllModelLocalGroups } from '@/lib/modelTransforms';
+import { useModelStore } from '@/stores/useModelStore';
+import { toast } from 'sonner';

 /**
- * Quest 3 thumbstick locomotion (rig-relative).
+ * Mapeamento de Locomoção por Teletransporte Parabólico via Controle XR:
 * 
- * Mapeamento (thumbstick = axes[2]/axes[3] em xr-standard):
- *   • Para frente (axes[1] < -0.7), libera (axis volta a ~0) → teletransporta
- *     para o ponto onde o usuário está olhando (raycast da câmera). Se não
- *     houver geometria atingida, dá um passo de 0.5 m na direção do olhar.
- *   • Para trás  (axes[1] > 0.7) → passo de 0.3 m oposto ao olhar.
- *   • Lateral   (|axes[0]| > 0.7) → snap-rotate ±30° no eixo Y do rig.
- *
- * NÃO lê grip ou trigger — esses são responsabilidade exclusiva de
- * XRGrabbable e XRControllerMeasure, respectivamente.
+ * - Incline e segure o Thumbstick (analógico) de qualquer controle para frente.
+ *   Um arco parabólico surgirá projetado a partir da mira física do controle.
+ * - Ao soltar o direcional, você se teletransporta para o local.
+ * - Para entrar em escala real dentro do modelo, aponte diretamente para ele. A escala 
+ *   será automaticamente definida para 1:1 ao pousar.
 */
 interface Props {
  /** Ref para o <group> que envolve <XROrigin/>; sua pose move o usuário. */
-  rigRef: RefObject<THREE.Group>;
+  rigRef: React.RefObject<THREE.Group>;
 }

 const DEAD = 0.7;
 const RELEASE = 0.3;
-const SNAP_DEG = 30;
-const STEP_BACK = 0.3;
-const STEP_FWD_NO_HIT = 0.5;

 export function ControllerLocomotion({ rigRef }: Props) {
-  const { scene, camera } = useThree();
+  const { camera, gl } = useThree();
  const session = useXR((s) => s.session);

  const fwdPushed = useRef(false);
-  const backLatched = useRef(false);
-  const rotLatched = useRef<0 | -1 | 1>(0);
  const raycaster = useRef(new THREE.Raycaster());
  
-  useFrame(() => {
-    const rig = rigRef.current;
-    if (!rig || !session) return;
+  const [arcLine] = useState(() => {
+    const geom = new THREE.BufferGeometry();
+    const mat = new THREE.LineBasicMaterial({
+      color: '#06b6d4',
+      transparent: true,
+      opacity: 0.8,
+    });
+    const line = new THREE.Line(geom, mat);
+    line.visible = false;
+    return line;
+  });

-    let stickX = 0;
+  // Refs visuais
+  const reticleRef = useRef<THREE.Mesh>(null);
+
+  // Estados temporários do teletransporte
+  const lastTeleportTarget = useRef<THREE.Vector3 | null>(null);
+  const lastTeleportHitModel = useRef<boolean>(false);
+
+  useFrame((_state, _dt, frame: XRFrame | undefined) => {
+    const rig = rigRef.current;
+    if (!rig || !session || !frame) {
+      arcLine.visible = false;
+      if (reticleRef.current) reticleRef.current.visible = false;
+      return;
+    }
+
+    const referenceSpace = gl.xr.getReferenceSpace();
+    if (!referenceSpace) return;
+
+    let activeSource: XRInputSource | null = null;
    let stickY = 0;
+
+    // Procura qualquer controle com analógico inclinado para a frente
    for (const src of session.inputSources) {
      const gp = src.gamepad;
-      if (!gp || gp.axes.length < 4) continue;
-      // Prefer left stick for locomotion
-      if (src.handedness === 'left') {
-        stickX = gp.axes[2] ?? 0;
-        stickY = gp.axes[3] ?? 0;
-        break;
-      }
-      if (src.handedness === 'right' && stickX === 0 && stickY === 0) {
-        stickX = gp.axes[2] ?? 0;
-        stickY = gp.axes[3] ?? 0;
-      }
-    }
-
-    // ── Snap-rotate (lateral) ──────────────────────────────────────
-    if (Math.abs(stickX) > DEAD) {
-      const dir: -1 | 1 = stickX > 0 ? 1 : -1;
-      if (rotLatched.current !== dir) {
-        rotLatched.current = dir;
-        rig.rotation.y -= (dir * SNAP_DEG * Math.PI) / 180;
-      }
-    } else if (Math.abs(stickX) < RELEASE) {
-      rotLatched.current = 0;
-    }
-
-    // ── Back step ──────────────────────────────────────────────────
-    if (stickY > DEAD) {
-      if (!backLatched.current) {
-        backLatched.current = true;
-        const headDir = new THREE.Vector3();
-        camera.getWorldDirection(headDir);
-        headDir.y = 0;
-        if (headDir.lengthSq() > 1e-6) {
-          headDir.normalize();
-          rig.position.addScaledVector(headDir, -STEP_BACK);
+      if (gp && gp.axes.length >= 4) {
+        const sy = gp.axes[3] ?? 0; // Eixo Y vertical do joystick
+        if (sy < -DEAD) {
+          activeSource = src;
+          stickY = sy;
+          break;
        }
      }
-    } else if (stickY < RELEASE) {
-      backLatched.current = false;
    }

-    // ── Forward → teleport on release ─────────────────────────────
-    if (stickY < -DEAD) {
+    // Se encontramos um controle ativo mirando/inclinado para frente
+    if (activeSource && stickY < -DEAD) {
      fwdPushed.current = true;
-    } else if (fwdPushed.current && stickY > -RELEASE) {
-      fwdPushed.current = false;
-      // Cast from camera forward to find target on real/virtual geometry
+
      const origin = new THREE.Vector3();
-      camera.getWorldPosition(origin);
      const dir = new THREE.Vector3();
-      camera.getWorldDirection(dir);
-      raycaster.current.set(origin, dir);
-      raycaster.current.far = 30;
-      const hits = raycaster.current.intersectObjects(scene.children, true);
-      const hit = hits.find((h) => {
-        const o = h.object;
-        if (!(o instanceof THREE.Mesh)) return false;
-        if (o.userData.__edgeLine) return false;
-        return true;
-      });
-      const target = hit ? hit.point.clone() : origin.clone().add(dir.multiplyScalar(STEP_FWD_NO_HIT));
-      const camWorld = new THREE.Vector3();
-      camera.getWorldPosition(camWorld);
-      const delta = new THREE.Vector3().subVectors(target, camWorld);
-      delta.y = 0; // preserva altura do usuário
-      rig.position.add(delta);
+
+      // Obtém pose do controle usando o targetRaySpace (mira física do controle)
+      const ctrlPose = frame.getPose(activeSource.targetRaySpace, referenceSpace);
+      if (ctrlPose) {
+        const m = new THREE.Matrix4().fromArray(ctrlPose.transform.matrix);
+        // Aplica a matriz de mundo do rig para alinhar a origem física com a locomoção do rig
+        m.premultiply(rig.matrixWorld);
+        origin.setFromMatrixPosition(m);
+        const q = new THREE.Quaternion().setFromRotationMatrix(m);
+        dir.set(0, 0, -1).applyQuaternion(q).normalize();
+      } else {
+        // Fallback para direção do olhar se pose falhar
+        camera.getWorldPosition(origin);
+        camera.getWorldDirection(dir);
+      }
+
+      // Parâmetros da simulação do arco parabólico
+      const points: THREE.Vector3[] = [];
+      const currentPos = origin.clone();
+      const velocity = dir.clone().multiplyScalar(7.5); // velocidade do tiro do arco
+      const gravity = new THREE.Vector3(0, -9.8, 0);
+      const dt = 0.025; // passo da física
+      let hitPoint: THREE.Vector3 | null = null;
+      let hitModel = false;
+      const modelsObjects = getAllModelLocalGroups();
+
+      points.push(currentPos.clone());
+
+      // Executa a trajetória balística
+      for (let i = 0; i < 35; i++) {
+        const nextPos = currentPos.clone().addScaledVector(velocity, dt);
+        velocity.addScaledVector(gravity, dt);
+
+        const segDir = new THREE.Vector3().subVectors(nextPos, currentPos);
+        const segLen = segDir.length();
+
+        if (segLen > 0.001) {
+          segDir.normalize();
+          raycaster.current.set(currentPos, segDir);
+          raycaster.current.far = segLen;
+
+          // 1. Verifica colisão com modelos 3D
+          const hits = raycaster.current.intersectObjects(modelsObjects, true);
+          const firstHit = hits.find(
+            (h) => h.object instanceof THREE.Mesh && !h.object.userData.__edgeLine
+          );
+
+          if (firstHit) {
+            hitPoint = firstHit.point.clone();
+            hitModel = true;
+            points.push(hitPoint);
+            break;
+          }
+
+          // 2. Verifica colisão com o chão/grid de calibração plano infinito em Y = gridY
+          const gridY = useModelStore.getState().gridY;
+          if (
+            (currentPos.y >= gridY && nextPos.y <= gridY) ||
+            (currentPos.y <= gridY && nextPos.y >= gridY)
+          ) {
+            const t = (gridY - currentPos.y) / (nextPos.y - currentPos.y);
+            hitPoint = new THREE.Vector3().lerpVectors(currentPos, nextPos, t);
+            points.push(hitPoint);
+            break;
+          }
+        }
+
+        currentPos.copy(nextPos);
+        points.push(currentPos.clone());
+      }
+
+      const finalTarget = hitPoint ?? points[points.length - 1];
+      lastTeleportTarget.current = finalTarget.clone();
+      lastTeleportHitModel.current = hitModel;
+
+      // Atualiza a geometria do arco
+      arcLine.geometry.setFromPoints(points);
+      arcLine.geometry.attributes.position.needsUpdate = true;
+      arcLine.geometry.computeBoundingSphere();
+      arcLine.visible = true;
+
+      // Atualiza o retículo
+      if (reticleRef.current) {
+        const localTarget = finalTarget.clone();
+        rig.worldToLocal(localTarget);
+        reticleRef.current.position.copy(localTarget);
+        reticleRef.current.visible = true;
+
+        // Visual premium: Rosa/Fúcsia para escala real (modelo), Ciano para o grid/chão
+        const mat = reticleRef.current.material as THREE.MeshBasicMaterial;
+        if (hitModel) {
+          mat.color.set('#d946ef');
+          reticleRef.current.scale.setScalar(1.2);
+        } else {
+          mat.color.set('#06b6d4');
+          reticleRef.current.scale.setScalar(1.0);
+        }
+      }
+    } else {
+      // Quando soltar o analógico
+      if (fwdPushed.current) {
+        fwdPushed.current = false;
+
+        const targetWorld = lastTeleportTarget.current;
+        const hitModel = lastTeleportHitModel.current;
+
+        if (targetWorld) {
+          const camWorld = new THREE.Vector3();
+          camera.getWorldPosition(camWorld);
+
+          const delta = new THREE.Vector3().subVectors(targetWorld, camWorld);
+
+          if (hitModel) {
+            // "Para entrar em escala real dentro do modelo, aponte para ele"
+            useModelStore.getState().resetScale();
+            // Ajusta o rig para que o pé fique no Y do modelo, mantendo a altura da câmera
+            rig.position.y = targetWorld.y;
+            delta.y = 0;
+            toast.success("Entrando na peça em Escala Real (1:1)!");
+          } else {
+            delta.y = 0; // preserva a altura vertical do usuário
+          }
+
+          rig.position.add(delta);
+        }
+      }
+
+      // Oculta feixe e retículo
+      arcLine.visible = false;
+      if (reticleRef.current) reticleRef.current.visible = false;
    }
  });

-  return null;
+  return (
+    <>
+      {/* Arco parabólico premium */}
+      <primitive object={arcLine} />
+
+      {/* Retículo de pouso */}
+      <mesh ref={reticleRef} visible={false} rotation={[-Math.PI / 2, 0, 0]}>
+        <ringGeometry args={[0.07, 0.09, 32]} />
+        <meshBasicMaterial color="#06b6d4" transparent opacity={0.85} side={THREE.DoubleSide} depthWrite={false} />
+      </mesh>
+    </>
+  );
 }
@@ -1,6 +1,6 @@
 import { Suspense, useRef, useMemo, useEffect, type ReactNode, useState } from 'react';
 import { Canvas, useThree, useFrame } from '@react-three/fiber';
-import { OrbitControls, useGLTF, Grid, Html, Line, PerspectiveCamera, OrthographicCamera } from '@react-three/drei';
+import { OrbitControls, useGLTF, Grid, Html, Line, PerspectiveCamera, OrthographicCamera, PointerLockControls, Sky, Environment } from '@react-three/drei';
 import { Loader2 } from 'lucide-react';
 import * as THREE from 'three';
 import { useModelStore, type SceneModel } from '@/stores/useModelStore';
@@ -9,6 +9,19 @@ import { registerModelLocalGroup, unregisterModelLocalGroup, getModelWorldScaleF
 import { parseIFCtoThree } from '@/lib/convertIFC';
 import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js';
 import { mainCameraRef, mainControlsRef, viewAnim, calibration, pushModelFaceNormal, computeCalibrationQuaternion, subscribeCalibration } from './viewCubeBus';
+import { toast } from 'sonner';
+
+export function getColorForMaterialName(name: string): string {
+  if (!name) return '#a1a1aa';
+  let hash = 0;
+  for (let i = 0; i < name.length; i++) {
+    hash = name.charCodeAt(i) + ((hash << 5) - hash);
+  }
+  const h = Math.abs(hash) % 360;
+  const s = 65 + (Math.abs(hash >> 8) % 15);
+  const l = 45 + (Math.abs(hash >> 16) % 10);
+  return `hsl(${h}, ${s}%, ${l}%)`;
+}

 interface ModelViewerProps {
  url?: string; // legacy, ignored — uses store.models
@@ -195,6 +208,7 @@ function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive:
  const setActive = useModelStore((s) => s.setActiveModel);
  const selectionMode = useModelStore((s) => s.selectionMode);
  const measureMode = useModelStore((s) => s.measureMode);
+  const ifcColorMode = useModelStore((s) => s.ifcColorMode);
  const fineTuning = sceneModel.fineTuning;

  // Re-render when calibration state changes (so calQuat resets to identity during the flow).
@@ -261,8 +275,17 @@ function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive:
              } else if (allApproved) {
                mat.color.setHSL(0.38, 0.7, 0.45);
              } else {
-                // Tint with the per-model color (subtle)
-                mat.color.set(sceneModel.color);
+                const root = findElementRoot(child);
+                const matName = root?.userData?.materialName;
+                const descName = root?.userData?.properties?.description || root?.userData?.description;
+                if (ifcColorMode === 'material' && matName) {
+                  mat.color.set(getColorForMaterialName(matName));
+                } else if (ifcColorMode === 'description' && descName) {
+                  mat.color.set(getColorForMaterialName(descName));
+                } else {
+                  // Tint with the per-model color (subtle)
+                  mat.color.set(sceneModel.color);
+                }
              }
            }
            mat.needsUpdate = true;
@@ -284,7 +307,7 @@ function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive:
        }
      }
    });
-  }, [scene, opacity, renderMode, checklist, wireframeColor, wireframeThickness, edgeThresholdAngle, sceneModel.color, measureMode]);
+  }, [scene, opacity, renderMode, checklist, wireframeColor, wireframeThickness, edgeThresholdAngle, sceneModel.color, measureMode, ifcColorMode]);

  const rotXRad = (fineTuning.rotX * Math.PI) / 180;
  const rotYRad = (fineTuning.rotY * Math.PI) / 180;
@@ -293,6 +316,10 @@ function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive:
  const scaleRatio = useModelStore((st) => st.scaleRatio);
  const renderFactor = scaleRatio?.factor ?? 1;

+  const rotationEuler = useMemo(() => {
+    return new THREE.Euler(rotXRad, rotYRad, rotZRad, 'YXZ');
+  }, [rotXRad, rotYRad, rotZRad]);
+
  // Calibration quaternion (applied innermost, around center). We render with identity
  // while calibration is in progress for this model so face normals reflect the
  // un-calibrated frame; the result is committed at the end.
@@ -362,7 +389,7 @@ function GLBModel({ sceneModel, isActive }: { sceneModel: SceneModel; isActive:
        {/* Rotation + scale around the geometry center */}
        <group
          ref={ref}
-          rotation={[rotXRad, rotYRad, rotZRad]}
+          rotation={rotationEuler}
          scale={[s, s, s]}
        >
          {/* Calibration rotation (innermost, around center). */}
@@ -422,7 +449,7 @@ function computeWorldPerPixel(
  worldPos: THREE.Vector3,
 ): number {
  const ortho = camera as THREE.OrthographicCamera;
-  if ((ortho as any).isOrthographicCamera) {
+  if ('isOrthographicCamera' in ortho) {
    const visibleHeight = (ortho.top - ortho.bottom) / (ortho.zoom || 1);
    return visibleHeight / Math.max(1, size.height);
  }
@@ -711,11 +738,13 @@ function SmartSnapHandler() {
 function HoverDetector() {
  const { camera, scene, gl } = useThree();
  const setHoverInfo = useModelStore((s) => s.setHoverInfo);
+  const setHoverIfcProps = useModelStore((s) => s.setHoverIfcProps);
  const raycaster = useMemo(() => new THREE.Raycaster(), []);
  const mouse = useMemo(() => new THREE.Vector2(), []);
  const hoverTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
  const hideTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
  const lastHitKey = useRef('');
+  const lastHitExpressId = useRef<number>(0);

  useEffect(() => {
    const clearTimers = () => {
@@ -741,11 +770,28 @@ function HoverDetector() {

      if (!hit || !(hit.object instanceof THREE.Mesh)) {
        lastHitKey.current = '';
+        lastHitExpressId.current = 0;
        setHoverInfo(null);
+        setHoverIfcProps(null);
        clearTimers();
        return;
      }

+      // Detecção de propriedades do IFC de forma ágil baseada em mudança de elemento
+      const elementRoot = findElementRoot(hit.object);
+      const expressID = elementRoot?.userData?.ifcId ?? 0;
+
+      if (expressID !== lastHitExpressId.current) {
+        lastHitExpressId.current = expressID;
+        const props = elementRoot?.userData?.properties;
+        
+        if (props && (props.name || props.material || props.tag)) {
+          setHoverIfcProps(props);
+        } else {
+          setHoverIfcProps(null);
+        }
+      }
+
      // Stability check – same approximate position for debounce (~3 mm)
      const key = `${hit.point.x.toFixed(3)},${hit.point.y.toFixed(3)},${hit.point.z.toFixed(3)}`;
      if (key === lastHitKey.current) return; // timer already running
@@ -808,7 +854,9 @@ function HoverDetector() {

    const onLeave = () => {
      lastHitKey.current = '';
+      lastHitExpressId.current = 0;
      setHoverInfo(null);
+      setHoverIfcProps(null);
      clearTimers();
    };

@@ -818,8 +866,9 @@ function HoverDetector() {
      gl.domElement.removeEventListener('pointermove', onMove);
      gl.domElement.removeEventListener('pointerleave', onLeave);
      clearTimers();
+      setHoverIfcProps(null);
    };
-  }, [camera, scene, gl, raycaster, mouse, setHoverInfo]);
+  }, [camera, scene, gl, raycaster, mouse, setHoverInfo, setHoverIfcProps]);

  return null;
 }
@@ -1176,7 +1225,7 @@ function SectionClippingApplier() {
        mat.needsUpdate = true;
      }
    };
-  }, [enabled.x, enabled.y, enabled.z, invert.x, invert.y, invert.z, level.x, level.y, level.z, planes]);
+  }, [enabled.x, enabled.y, enabled.z, invert, invert.x, invert.y, invert.z, level, level.x, level.y, level.z, planes]);

  return null;
 }
@@ -1330,10 +1379,149 @@ function PositionDragHandler() {



+function WalkControls() {
+  const walkMode = useModelStore(s => s.walkMode);
+  const setWalkMode = useModelStore(s => s.setWalkMode);
+  const gridY = useModelStore(s => s.gridY);
+  const { camera } = useThree();
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const controlsRef = useRef<any>(null);
+  const keys = useRef({ w: false, a: false, s: false, d: false, q: false, e: false, shift: false });
+  const initialized = useRef(false);
+
+  useEffect(() => {
+    if (walkMode && !initialized.current) {
+      camera.position.set(0, gridY + 1.7, 5);
+      // Give the camera an initial rotation looking forward
+      camera.rotation.set(0, 0, 0);
+      initialized.current = true;
+    } else if (!walkMode) {
+      initialized.current = false;
+    }
+  }, [walkMode, camera, gridY]);
+
+  useEffect(() => {
+    if (walkMode) {
+      // Small timeout to allow canvas to render and be clickable
+      const timer = setTimeout(() => {
+        try { controlsRef.current?.lock(); } catch (e) { /* ignore */ }
+      }, 100);
+      return () => clearTimeout(timer);
+    }
+  }, [walkMode]);
+
+  useEffect(() => {
+    const onKeyDown = (e: KeyboardEvent) => {
+      if (e.code === 'KeyW') keys.current.w = true;
+      if (e.code === 'KeyA') keys.current.a = true;
+      if (e.code === 'KeyS') keys.current.s = true;
+      if (e.code === 'KeyD') keys.current.d = true;
+      if (e.code === 'KeyQ') keys.current.q = true;
+      if (e.code === 'KeyE') keys.current.e = true;
+      if (e.code === 'ShiftLeft' || e.code === 'ShiftRight') keys.current.shift = true;
+    };
+    const onKeyUp = (e: KeyboardEvent) => {
+      if (e.code === 'KeyW') keys.current.w = false;
+      if (e.code === 'KeyA') keys.current.a = false;
+      if (e.code === 'KeyS') keys.current.s = false;
+      if (e.code === 'KeyD') keys.current.d = false;
+      if (e.code === 'KeyQ') keys.current.q = false;
+      if (e.code === 'KeyE') keys.current.e = false;
+      if (e.code === 'ShiftLeft' || e.code === 'ShiftRight') keys.current.shift = false;
+    };
+    window.addEventListener('keydown', onKeyDown);
+    window.addEventListener('keyup', onKeyUp);
+    return () => {
+      window.removeEventListener('keydown', onKeyDown);
+      window.removeEventListener('keyup', onKeyUp);
+    };
+  }, []);
+
+  useFrame((_, dt) => {
+    if (!walkMode) return;
+    const speed = keys.current.shift ? 6.0 : 2.5;
+    const dir = new THREE.Vector3();
+    
+    // Front vector (ignoring pitch to walk purely horizontally)
+    const front = new THREE.Vector3(0, 0, -1).applyQuaternion(camera.quaternion);
+    front.y = 0; 
+    if (front.lengthSq() > 0.001) front.normalize();
+
+    // Right vector
+    const right = new THREE.Vector3(1, 0, 0).applyQuaternion(camera.quaternion);
+    right.y = 0; 
+    if (right.lengthSq() > 0.001) right.normalize();
+
+    if (keys.current.w) dir.add(front);
+    if (keys.current.s) dir.sub(front);
+    if (keys.current.a) dir.sub(right);
+    if (keys.current.d) dir.add(right);
+
+    if (dir.lengthSq() > 0) {
+      dir.normalize();
+      camera.position.addScaledVector(dir, speed * dt);
+    }
+    
+    // Vertical movement (Q / E)
+    if (keys.current.e) camera.position.y += speed * dt;
+    if (keys.current.q) camera.position.y -= speed * dt;
+
+    // Clamp to prevent clipping through the ground
+    if (camera.position.y < gridY + 0.2) {
+      camera.position.y = gridY + 0.2;
+    }
+  });
+
+  if (!walkMode) return null;
+
+  return (
+    <PointerLockControls 
+      ref={controlsRef} 
+      onUnlock={() => {
+        setWalkMode(false);
+      }}
+    />
+  );
+}
+
+function WalkEnvironment() {
+  const walkMode = useModelStore(s => s.walkMode);
+  const gridY = useModelStore(s => s.gridY);
+  if (!walkMode) return null;
+
+  return (
+    <group>
+      {/* Um belo cenário HDRI de parque que nos dá árvores, céu azul e nuvens à distância perfeitamente */}
+      <Environment preset="park" background />
+      
+      {/* O Piso Digital: Sólido, infinito e na altura exata da peça para que ela não pareça "voar" */}
+      <mesh rotation={[-Math.PI / 2, 0, 0]} position={[0, gridY - 0.01, 0]} receiveShadow>
+        <planeGeometry args={[1000, 1000]} />
+        <meshStandardMaterial color="#3f662b" roughness={1} metalness={0.1} />
+      </mesh>
+
+      {/* Grid sutil sobre a grama para dar noção de escala e movimento ao caminhar */}
+      <Grid 
+        position={[0, gridY, 0]} 
+        args={[1000, 1000]} 
+        cellSize={1} 
+        cellThickness={0.5} 
+        cellColor="#4d7a34" 
+        sectionSize={10} 
+        sectionThickness={1} 
+        sectionColor="#2d4a1f" 
+        fadeDistance={50} 
+        fadeStrength={2}
+      />
+    </group>
+  );
+}
+
 export function ModelViewerCanvas({ url }: ModelViewerProps) {
  const positionMode = useModelStore((s) => s.positionMode);
  const measureMode = useModelStore((s) => s.measureMode);
  const selectionMode = useModelStore((s) => s.selectionMode);
+  const walkMode = useModelStore((s) => s.walkMode);
  return (
    <Canvas
      camera={{ position: [2, 2, 2], fov: 50, near: 0.001, far: 1000 }}
@@ -1377,6 +1565,9 @@ export function ModelViewerCanvas({ url }: ModelViewerProps) {
      <SceneRefCapture />
      <ViewCubeAnimator />
      
+      <WalkControls />
+      <WalkEnvironment />
+
      <OrbitControls
        makeDefault
        enableDamping
@@ -1385,8 +1576,8 @@ export function ModelViewerCanvas({ url }: ModelViewerProps) {
        maxDistance={50}
        minZoom={5}
        maxZoom={5000}
-        enabled={!positionMode}
-        ref={(c: any) => {
+        enabled={!positionMode && !walkMode}
+        ref={(c: unknown) => {
          mainControlsRef.current = c;
        }}
      />
@@ -1,4 +1,4 @@
-import { useRef, useState } from 'react';
+import { useRef, useState, useEffect } from 'react';
 import { useFrame, useThree } from '@react-three/fiber';
 import * as THREE from 'three';
 import { useModelStore } from '@/stores/useModelStore';
@@ -11,6 +11,7 @@ import {
  detectCircularEdgeAtPoint3D,
  findNearestEdgeSegment3D
 } from './SmartMeasure';
+import { toast } from 'sonner';

 const TRIG_ON = 0.7;
 const TRIG_OFF = 0.3;
@@ -56,6 +57,7 @@ export function XRControllerMeasure() {
  const lTrigState = useRef(false);
  const [snapEnabled, setSnapEnabled] = useState(true);

+
  const raycaster = useRef(new THREE.Raycaster());
  const tmpOrigin = useRef(new THREE.Vector3());
  const tmpDir = useRef(new THREE.Vector3());
@@ -80,12 +82,22 @@ export function XRControllerMeasure() {
  // running them every frame at 72fps can stall the Quest right after
  // toggling "Medir" from the Ferramentas tab. We cap heavy work to ~24Hz.
  // Trigger/A/B/L-trigger polling continues every frame for responsiveness.
+  const hitTestSourceRef = useRef<XRHitTestSource | null>(null);
+  const hitTestRequestedRef = useRef<boolean>(false);
+
  useFrame((_state, _dt, frame: XRFrame | undefined) => {
    const measureMode = useModelStore.getState().measureMode;
    const selectionMode = useModelStore.getState().selectionMode;
+    
    if (laserRef.current) laserRef.current.visible = false;
    if (tipRef.current) tipRef.current.visible = false;
-    if ((!measureMode && !selectionMode) || !frame) return;
+    if ((!measureMode && !selectionMode) || !frame) {
+      if (hitTestRequestedRef.current) {
+        hitTestSourceRef.current = null;
+        hitTestRequestedRef.current = false;
+      }
+      return;
+    }

    const session = frame.session;
    const refSpace = gl.xr.getReferenceSpace();
@@ -119,6 +131,10 @@ export function XRControllerMeasure() {
    if (!pose) return;

    const m = new THREE.Matrix4().fromArray(pose.transform.matrix);
+    const xrRig = useModelStore.getState().xrRig;
+    if (xrRig) {
+      m.premultiply(xrRig.matrixWorld);
+    }
    tmpOrigin.current.setFromMatrixPosition(m);
    tmpQuat.current.setFromRotationMatrix(m);
    tmpDir.current.set(0, 0, -1).applyQuaternion(tmpQuat.current).normalize();
@@ -241,6 +257,7 @@ export function XRControllerMeasure() {
    // ── Update laser visual ───────────────────────────────────────────
    if (laserRef.current && tipRef.current) {
      const end = snappedPoint ?? tmpOrigin.current.clone().add(tmpDir.current.clone().multiplyScalar(MAX_RAY));
+        
      const positions = laserGeom.current.attributes.position as THREE.BufferAttribute;
      positions.setXYZ(0, tmpOrigin.current.x, tmpOrigin.current.y, tmpOrigin.current.z);
      positions.setXYZ(1, end.x, end.y, end.z);
@@ -248,18 +265,18 @@ export function XRControllerMeasure() {
      laserGeom.current.computeBoundingSphere();

      const color = selectionMode ? '#a855f7' : (snapKind === 'hole' ? '#f59e0b' : snapKind === 'vertex' ? '#22c55e' : snapKind === 'edge' ? '#3b82f6' : '#eab308');
+      
      tipColor.current.set(color);
      (laserRef.current.material as THREE.LineBasicMaterial).color.set(color);
      ((tipRef.current.material as THREE.MeshBasicMaterial)).color.copy(tipColor.current);

      laserRef.current.visible = true;
-      if (snappedPoint) {
+      
+      const tipPos = snappedPoint;
+      if (tipPos) {
        tipRef.current.visible = true;
-        tipRef.current.position.copy(snappedPoint);
-        // Tip scales with distance from controller. Snap "forte" (vértice,
-        // aresta, furo) recebe um marcador ~3× maior do que uma superfície
-        // genérica, para que o ponto destacado fique bem visível.
-        const dist = tmpOrigin.current.distanceTo(snappedPoint);
+        tipRef.current.position.copy(tipPos);
+        const dist = tmpOrigin.current.distanceTo(tipPos);
        const strongSnap = snapKind === 'vertex' || snapKind === 'edge' || snapKind === 'hole';
        const factor = strongSnap ? 0.030 : 0.012;
        const s = Math.max(strongSnap ? 0.010 : 0.004, dist * factor);
@@ -271,9 +288,12 @@ export function XRControllerMeasure() {

    // ── Right trigger: add point (measure) OR toggle selection ────────
    const trigVal = gp?.buttons?.[0]?.value ?? (gp?.buttons?.[0]?.pressed ? 1 : 0);
+    
    if (!trigState.current && trigVal > TRIG_ON) {
      trigState.current = true;
+
      const st = useModelStore.getState();
+
      if (st.selectionMode) {
        // Fresh raycast on the press itself (not every frame) for selection
        const triggerHits = raycaster.current.intersectObjects(scene.children, true);
@@ -314,25 +334,7 @@ export function XRControllerMeasure() {
      trigState.current = false;
    }

-    // ── Button A (undo) ──────────────────────────────────────────────
-    const aBtn = gp?.buttons?.[4];
-    const aVal = aBtn ? (aBtn.value || (aBtn.pressed ? 1 : 0)) : 0;
-    if (!aState.current && aVal > BTN_ON) {
-      aState.current = true;
-      useModelStore.getState().undoLastMeasurement();
-    } else if (aState.current && aVal < TRIG_OFF) {
-      aState.current = false;
-    }
-
-    // ── Button B (clear) ─────────────────────────────────────────────
-    const bBtn = gp?.buttons?.[5];
-    const bVal = bBtn ? (bBtn.value || (bBtn.pressed ? 1 : 0)) : 0;
-    if (!bState.current && bVal > BTN_ON) {
-      bState.current = true;
-      useModelStore.getState().clearMeasurements();
-    } else if (bState.current && bVal < TRIG_OFF) {
-      bState.current = false;
-    }
+    // A and B physical buttons are now handled globally in XRHudInWorld.tsx for the Summon Menu.
  });

  // Construct the laser Line object once so we can attach via <primitive>
@@ -1,8 +1,10 @@
 import { useRef, ReactNode, useEffect } from 'react';
 import { useFrame } from '@react-three/fiber';
+import { useXR } from '@react-three/xr';
 import * as THREE from 'three';
 import { useControllerGrab, ControllerGrabSnapshot } from '@/hooks/useControllerGrab';
 import { useModelStore } from '@/stores/useModelStore';
+import { activeModelGroupRef } from './xrCalibrationBus';

 interface XRGrabbableProps {
  /**
@@ -21,6 +23,8 @@ interface SingleGrabRecord {
  hand: 'left' | 'right';
  /** Offset (world) = groupWorldPos - controllerWorldPos at grab start. */
  offsetWorld: THREE.Vector3;
+  /** Altura Y de mundo da peça no momento em que o grab iniciou */
+  startWorldY: number;
 }

 interface DualGrabRecord {
@@ -42,18 +46,18 @@ const _tmpVecR = new THREE.Vector3();
 const _tmpQuat = new THREE.Quaternion();

 /**
- * Touch Plus grip mapping (Meta Quest 3):
+ * Mapeamento Geral do Quest 3 para Manipulação do Modelo em AR:
 *
- *  • One-hand grip  → **PAN ONLY** (translação). A rotação e a escala
- *    da peça NÃO mudam — o grip simples só arrasta.
- *  • Two-hand grip  → ORBIT (eixo entre as mãos) + ZOOM uniforme
- *    (distância entre os controles). O zoom está sempre ligado.
- *
- * Trigger não interfere aqui (reservado para seleção/medição).
+ *  • Panorâmica (Pan) -> Segurar o botão Grip (lateral) em qualquer um dos controles
+ *    e mover a mão na direção que deseja arrastar (movimentação livre em 3D).
+ *  • Giro (Rotação) e Zoom (Escala) -> Apontar ambos os controles para a bounding box do modelo,
+ *    segurar ambos os botões de Grip (L+R) e mover as mãos em direções opostas (giro) ou 
+ *    afastar/aproximar as mãos (zoom).
 */
 export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabStart, children }: XRGrabbableProps) {
  const groupRef = useRef<THREE.Group>(null);
  const grab = useControllerGrab();
+  const session = useXR((s) => s.session);

  const single = useRef<SingleGrabRecord | null>(null);
  const dual = useRef<DualGrabRecord | null>(null);
@@ -70,10 +74,76 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta
    single.current = null;
  }, [scaleResetNonce]);

-  useFrame(() => {
+  useEffect(() => {
+    const currentGroup = groupRef.current;
+    activeModelGroupRef.current = currentGroup;
+    return () => {
+      if (activeModelGroupRef.current === currentGroup) {
+        activeModelGroupRef.current = null;
+      }
+    };
+  });
+
+  const syncGrabToStore = () => {
    const group = groupRef.current;
    if (!group) return;
-    const snap: ControllerGrabSnapshot = grab.current;
+
+    const state = useModelStore.getState();
+    const activeModelId = state.activeModelId;
+    if (!activeModelId) return;
+
+    const activeModel = state.models.find(m => m.id === activeModelId);
+    if (!activeModel) return;
+
+    const ft = { ...activeModel.fineTuning };
+    const renderFactor = state.scaleRatio?.factor ?? 1;
+
+    // Model's matrix relative to XRGrabbable
+    const posModel = new THREE.Vector3(ft.posX * renderFactor, ft.posY * renderFactor, ft.posZ * renderFactor);
+    const rotModel = new THREE.Euler(
+      (ft.rotX * Math.PI) / 180,
+      (ft.rotY * Math.PI) / 180,
+      (ft.rotZ * Math.PI) / 180,
+      'YXZ'
+    );
+    const quatModel = new THREE.Quaternion().setFromEuler(rotModel);
+    const scaleModel = new THREE.Vector3(ft.scale * renderFactor, ft.scale * renderFactor, ft.scale * renderFactor);
+
+    const mModel = new THREE.Matrix4().compose(posModel, quatModel, scaleModel);
+
+    // Grab matrix of XRGrabbable group
+    const mGrab = new THREE.Matrix4().compose(group.position, group.quaternion, group.scale);
+
+    // Combined matrix
+    const mCombined = new THREE.Matrix4().multiplyMatrices(mGrab, mModel);
+
+    const finalPos = new THREE.Vector3();
+    const finalQuat = new THREE.Quaternion();
+    const finalScale = new THREE.Vector3();
+    mCombined.decompose(finalPos, finalQuat, finalScale);
+
+    // Reset grabbable group to identity so the transform is held entirely by fineTuning
+    group.position.set(0, 0, 0);
+    group.quaternion.identity();
+    group.scale.set(1, 1, 1);
+
+    // Save to store
+    const euler = new THREE.Euler().setFromQuaternion(finalQuat, 'YXZ');
+    state.setFineTuning({
+      posX: finalPos.x / renderFactor,
+      posY: finalPos.y / renderFactor,
+      posZ: finalPos.z / renderFactor,
+      rotX: (euler.x * 180) / Math.PI,
+      rotY: (euler.y * 180) / Math.PI,
+      rotZ: (euler.z * 180) / Math.PI,
+      scale: finalScale.x / renderFactor,
+    });
+  };
+
+  useFrame((_state, dt) => {
+    const group = groupRef.current;
+    if (!group) return;
+    const snap = grab.current;
    const L = snap.left;
    const R = snap.right;

@@ -87,7 +157,7 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta
    const lActive = L.isGrabbing && L.hasPose;
    const rActive = R.isGrabbing && R.hasPose;

-    // ─── Halo intensity (visual feedback for analog grip) ────────
+    // Visual feedback para a pressão analógica do grip (halo)
    if (haloRef.current) {
      const maxGrip = Math.max(L.gripValue, R.gripValue);
      const mat = haloRef.current.material as THREE.MeshBasicMaterial;
@@ -95,7 +165,7 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta
      haloRef.current.visible = maxGrip > 0.05;
    }

-    // ─── Two-hand mode (orbit + zoom, sempre) ────────────────────
+    // ─── Modo de Duas Mãos: Giro (Órbita) + Zoom ────────────────────
    if (lActive && rActive) {
      _tmpVecL.setFromMatrixPosition(L.gripWorld);
      _tmpVecR.setFromMatrixPosition(R.gripWorld);
@@ -107,44 +177,72 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta

      if (!dual.current) {
        group.updateMatrixWorld();
-        dual.current = {
-          startGroupWorld: group.matrixWorld.clone(),
-          startMid: midNow.clone(),
-          startAxis: axisNow.clone(),
-          startDist: distNow,
-          startScale: group.scale.x,
+
+        // Se o usuário já estava segurando a peça com uma das mãos, transita para o modo dual imediatamente.
+        // Caso contrário (peça solta), exige que ambos os controles apontem para a bounding box da peça.
+        const wasSingleGrabbing = !!single.current;
+
+        const box = new THREE.Box3().setFromObject(group);
+        const checkPointerCollision = (slot: typeof L) => {
+          const origin = new THREE.Vector3().setFromMatrixPosition(slot.gripWorld);
+          const q = new THREE.Quaternion().setFromRotationMatrix(slot.gripWorld);
+          const dir = new THREE.Vector3(0, 0, -1).applyQuaternion(q).normalize();
+          const ray = new THREE.Ray(origin, dir);
+          return ray.intersectsBox(box);
        };
-        single.current = null;
-        if (!everGrabbed.current) { everGrabbed.current = true; onGrabStart?.(); }
-        console.log('[XR][grab] ◆ TWO-HAND start (orbit+zoom)');
+
+        if (wasSingleGrabbing || (checkPointerCollision(L) && checkPointerCollision(R))) {
+          dual.current = {
+            startGroupWorld: group.matrixWorld.clone(),
+            startMid: midNow.clone(),
+            startAxis: axisNow.clone(),
+            startDist: distNow,
+            startScale: group.scale.x,
+          };
+          single.current = null;
+          if (!everGrabbed.current) { everGrabbed.current = true; onGrabStart?.(); }
+          console.log('[XR][grab] ◆ TWO-HAND start (orbit+zoom) - ' + (wasSingleGrabbing ? 'from active single grab' : 'bounding box hit'));
+        } else {
+          // Se não apontavam para o modelo, ignora e permite o pan de uma mão (da primeira mão a engajar)
+          return;
+        }
      }

-      const d = dual.current;
-      const deltaQuat = new THREE.Quaternion().setFromUnitVectors(d.startAxis, axisNow);
-      // ZOOM só quando allowScale=true. Caso contrário, mantém escala 1× (só orbita).
-      const scaleRatio = allowScale
-        ? THREE.MathUtils.clamp(distNow / d.startDist, 0.1, 10)
-        : 1;
+      if (dual.current) {
+        const d = dual.current;
+        const deltaQuat = new THREE.Quaternion().setFromUnitVectors(d.startAxis, axisNow);
        
-      const tToOrigin = new THREE.Matrix4().makeTranslation(-d.startMid.x, -d.startMid.y, -d.startMid.z);
-      const tBack = new THREE.Matrix4().makeTranslation(midNow.x, midNow.y, midNow.z);
-      const rot = new THREE.Matrix4().makeRotationFromQuaternion(deltaQuat);
-      const scl = new THREE.Matrix4().makeScale(scaleRatio, scaleRatio, scaleRatio);
-      const m = new THREE.Matrix4().identity()
-        .multiply(tBack)
-        .multiply(rot)
-        .multiply(scl)
-        .multiply(tToOrigin)
-        .multiply(d.startGroupWorld);
+        // ZOOM: afasta as mãos para zoom in, aproxima para zoom out
+        const scaleRatio = allowScale
+          ? THREE.MathUtils.clamp(distNow / d.startDist, 0.1, 10)
+          : 1;

-      applyWorldMatrixToLocal(group, m);
-      return;
+        const tToOrigin = new THREE.Matrix4().makeTranslation(-d.startMid.x, -d.startMid.y, -d.startMid.z);
+        const tBack = new THREE.Matrix4().makeTranslation(midNow.x, midNow.y, midNow.z);
+        const rot = new THREE.Matrix4().makeRotationFromQuaternion(deltaQuat);
+        const scl = new THREE.Matrix4().makeScale(scaleRatio, scaleRatio, scaleRatio);
+        const m = new THREE.Matrix4().identity()
+          .multiply(tBack)
+          .multiply(rot)
+          .multiply(scl)
+          .multiply(tToOrigin)
+          .multiply(d.startGroupWorld);
+
+        applyWorldMatrixToLocal(group, m);
+        return;
+      }
    } else if (dual.current) {
      console.log('[XR][grab] ◆ TWO-HAND end');
      dual.current = null;
+      // Se a outra mão ainda estiver segurando, NÃO sincronizamos/resetamos o group local ainda.
+      // A transição de duas mãos para uma mão herdará o groupWorldPos correto de forma contínua.
+      const activeHand = lActive ? 'left' : rActive ? 'right' : null;
+      if (!activeHand) {
+        syncGrabToStore();
+      }
    }

-    // ─── One-hand mode (PAN ONLY) ────────────────────────────────
+    // ─── Modo de Uma Mão: Panorâmica Livre (Arrastar em 3D) ────────
    const activeHand: 'left' | 'right' | null = lActive ? 'left' : rActive ? 'right' : null;
    if (activeHand) {
      const slot = activeHand === 'left' ? L : R;
@@ -154,15 +252,33 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta
        group.updateMatrixWorld();
        const groupWorldPos = new THREE.Vector3().setFromMatrixPosition(group.matrixWorld);
        const offsetWorld = new THREE.Vector3().subVectors(groupWorldPos, ctrlPos);
-        single.current = { hand: activeHand, offsetWorld };
+        
+        single.current = { hand: activeHand, offsetWorld, startWorldY: groupWorldPos.y };
        if (!everGrabbed.current) { everGrabbed.current = true; onGrabStart?.(); }
-        console.log(`[XR][grab] ● ONE-HAND start (${activeHand}) — pan only`);
+        console.log(`[XR][grab] ● ONE-HAND start (${activeHand}) — free 3D pan`);
      }

-      // Target world position = controller + initial offset
+      // Função particular improvisada: rotacionar com o analógico horizontal durante o pan
+      const inputSource = session?.inputSources ? Array.from(session.inputSources).find(s => s.handedness === activeHand) : null;
+      const gp = inputSource?.gamepad;
+      if (gp && gp.axes.length >= 4) {
+        const stickX = gp.axes[2]; // thumbstick horizontal
+        const deadzone = 0.15;
+        if (Math.abs(stickX) > deadzone) {
+          const rotationSpeed = 1.5;
+          const angle = Math.sign(stickX) * (Math.abs(stickX) - deadzone) * rotationSpeed * dt;
+          const q = new THREE.Quaternion().setFromAxisAngle(new THREE.Vector3(0, 1, 0), -angle);
+          group.quaternion.multiplyQuaternions(q, group.quaternion);
+          
+          // Gira o offset em torno da mão
+          single.current.offsetWorld.applyQuaternion(q);
+        }
+      }
+
+      // Calcula a nova posição no espaço de mundo (movimentação 3D livre)
      const targetWorldPos = new THREE.Vector3().addVectors(ctrlPos, single.current.offsetWorld);

-      // Convert to parent-local position (preserve current rotation/scale)
+      // Converte para coordenadas locais do pai
      if (group.parent) {
        group.parent.updateMatrixWorld();
        const invParent = new THREE.Matrix4().copy(group.parent.matrixWorld).invert();
@@ -170,7 +286,9 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta
      }
      group.position.copy(targetWorldPos);
    } else if (single.current) {
+      console.log('[XR][grab] ● ONE-HAND end');
      single.current = null;
+      syncGrabToStore();
    }
  });

@@ -185,7 +303,6 @@ export function XRGrabbable({ allowScale = true, lockedActive = false, onGrabSta
  );
 }

-/** Convert a desired world matrix to the group's local matrix (given its parent). */
 function applyWorldMatrixToLocal(group: THREE.Group, worldMatrix: THREE.Matrix4) {
  if (group.parent) {
    group.parent.updateMatrixWorld();
@@ -1,4 +1,4 @@
-import { useRef, useState, forwardRef } from 'react';
+import { useRef, useState, useEffect, forwardRef } from 'react';
 import { useFrame, useThree } from '@react-three/fiber';
 import { useXRInputSourceState, useXR } from '@react-three/xr';
 import { useNavigate } from 'react-router-dom';
@@ -11,8 +11,17 @@ import {
  useCanvasRecorder, startRecording, pauseRecording, resumeRecording,
  stopRecording, captureScreenshot, formatElapsed,
 } from '@/hooks/useCanvasRecorder';
+import { getAllModelLocalGroups } from '@/lib/modelTransforms';
+import { toast } from 'sonner';
+import {
+  xrCalibration,
+  startXRCalibration,
+  cancelXRCalibration,
+  subscribeXRCalibration,
+} from './xrCalibrationBus';
+import { XRViewCube } from './XRViewCube';

-type Tab = 'scene' | 'tools' | 'inspection' | 'share' | 'capture' | 'webxr';
+type Tab = 'scene' | 'tools' | 'calib' | 'cuts' | 'inspection' | 'share' | 'capture' | 'webxr';

 interface XRHudInWorldProps {
  freeMove: boolean;
@@ -75,20 +84,72 @@ export function XRHudInWorld(props: XRHudInWorldProps) {
  const headLockRef = useRef<THREE.Group>(null);
  const targetPos = useRef(new THREE.Vector3());
  const targetQuat = useRef(new THREE.Quaternion());
-  const lastABtn = useRef(false);
+  const lastButtonsState = useRef({
+    left4: false, // X
+    left5: false, // Y
+    left3: false, // Menu (☰)
+    right4: false, // A
+    right5: false, // B
+  });
  /** Cached offset from controller to panel at drag start. */
  const dragOffsetPos = useRef(new THREE.Vector3());
  const dragOffsetQuat = useRef(new THREE.Quaternion());
  const dragInitialized = useRef(false);

  useFrame(() => {
-    // Toggle the head-locked 3-button group via left X button (Quest Touch buttons[4])
-    const gp = leftCtrl?.inputSource?.gamepad;
-    if (gp) {
-      const xBtn = gp.buttons[4];
-      const pressed = !!xBtn?.pressed;
-      if (pressed && !lastABtn.current) setHudVisible((v) => !v);
-      lastABtn.current = pressed;
+    // Escuta botões A, B, X, Y e Menu do esquerdo
+    const gpLeft = leftCtrl?.inputSource?.gamepad;
+    const gpRight = rightCtrl?.inputSource?.gamepad;
+
+    let xPressed = false;
+    let yPressed = false;
+    let menuPressed = false;
+    let aPressed = false;
+    let bPressed = false;
+
+    if (gpLeft) {
+      // Esquerdo: Menu (3), X (4), Y (5)
+      const btnMenu = gpLeft.buttons[3];
+      const btnX = gpLeft.buttons[4];
+      const btnY = gpLeft.buttons[5];
+
+      if (btnX?.pressed && !lastButtonsState.current.left4) xPressed = true;
+      if (btnY?.pressed && !lastButtonsState.current.left5) yPressed = true;
+      if (btnMenu?.pressed && !lastButtonsState.current.left3) menuPressed = true;
+
+      lastButtonsState.current.left4 = !!btnX?.pressed;
+      lastButtonsState.current.left5 = !!btnY?.pressed;
+      lastButtonsState.current.left3 = !!btnMenu?.pressed;
+    }
+
+    if (gpRight) {
+      // Direito: A (4), B (5)
+      const btnA = gpRight.buttons[4];
+      const btnB = gpRight.buttons[5];
+
+      if (btnA?.pressed && !lastButtonsState.current.right4) aPressed = true;
+      if (btnB?.pressed && !lastButtonsState.current.right5) bPressed = true;
+
+      lastButtonsState.current.right4 = !!btnA?.pressed;
+      lastButtonsState.current.right5 = !!btnB?.pressed;
+    }
+
+    // Se o menu estiver aberto, pressionar X físico fecha o projeto (encerra sessão AR)
+    if (xPressed && open) {
+      try { xrSession?.end(); } catch (e) { console.warn('[XR] session.end failed', e); }
+      setTimeout(() => navigate('/viewer'), 50);
+      toast.success("Projeto fechado!");
+    } else if (aPressed || bPressed || xPressed || yPressed) {
+      // Se qualquer um dos botões A, B, X, Y for pressionado, abre/traz o menu
+      setOpen(true);
+      reanchorRequested.current = true;
+    }
+
+    // Pressionar o botão de Menu (☰) do controle esquerdo abre o menu de ferramentas diretamente
+    if (menuPressed) {
+      setOpen(true);
+      setTab('tools');
+      reanchorRequested.current = true;
    }

    // Floating panel:
@@ -224,17 +285,19 @@ function FloatingPanel({
  const tabs: { id: Tab; label: string; icon: string }[] = [
    { id: 'scene', label: 'Cena', icon: '🧩' },
    { id: 'tools', label: 'Ferram.', icon: '🛠' },
+    { id: 'calib', label: 'Calibrar', icon: '🎯' },
+    { id: 'cuts', label: 'Cortes', icon: '✂' },
    { id: 'inspection', label: 'Inspeção', icon: '✓' },
    { id: 'capture', label: 'Captura', icon: '🎥' },
    { id: 'share', label: 'Compart.', icon: '📡' },
    { id: 'webxr', label: 'WebXR', icon: '⚙' },
  ];
-  const W = 0.5, H = 0.36;
+  const W = 0.54, H = 0.38;
  return (
    <XR3DPanel size={[W, H]}>
      <Text position={[-W / 2 + 0.012, H / 2 - 0.018, 0.002]} fontSize={0.011} color="#3b82f6"
            anchorX="left" anchorY="middle">
-        TrackSteelXR · HUD AR
+        SteelXR · HUD AR
      </Text>
      {/* Pin / Drag / Recenter — anchored to top-right, kept inside the panel.
          Group origin is at the right edge with margin; buttons extend leftward. */}
@@ -255,15 +318,17 @@ function FloatingPanel({
      <group position={[0, H / 2 - 0.045, 0.001]}>
        {tabs.map((t, i) => (
          <XR3DButton key={t.id}
-            position={[-W / 2 + 0.04 + i * 0.078, 0, 0]} size={[0.072, 0.022]}
+            position={[-W / 2 + 0.0495 + i * 0.063, 0, 0]} size={[0.058, 0.020]}
            label={t.label} icon={t.icon} active={tab === t.id}
-            onClick={() => setTab(t.id)} fontSize={0.0072} />
+            onClick={() => setTab(t.id)} fontSize={0.0062} />
        ))}
      </group>

-      <group position={[0, -0.012, 0.001]}>
+      <group position={[0, -0.018, 0.001]}>
        {tab === 'scene' && <SceneTab />}
        {tab === 'tools' && <ToolsTab {...p} />}
+        {tab === 'calib' && <CalibrationTab />}
+        {tab === 'cuts' && <CutsTab />}
        {tab === 'inspection' && <InspectionTab />}
        {tab === 'capture' && <CaptureTab />}
        {tab === 'share' && <ShareTab {...p} />}
@@ -273,6 +338,164 @@ function FloatingPanel({
  );
 }

+interface AxisRange { min: number; max: number; }
+type Axis = 'x' | 'y' | 'z';
+
+function computeBoundsByAxis(): Record<Axis, AxisRange> | null {
+  const groups = getAllModelLocalGroups();
+  if (groups.length === 0) return null;
+  const box = new THREE.Box3();
+  let has = false;
+  for (const g of groups) {
+    g.updateWorldMatrix(true, true);
+    const b = new THREE.Box3().setFromObject(g);
+    if (Number.isFinite(b.min.x) && Number.isFinite(b.max.x)) {
+      if (!has) { box.copy(b); has = true; } else box.union(b);
+    }
+  }
+  if (!has) return null;
+  return {
+    x: { min: box.min.x, max: box.max.x },
+    y: { min: box.min.y, max: box.max.y },
+    z: { min: box.min.z, max: box.max.z },
+  };
+}
+
+const AXIS_COLOR: Record<Axis, string> = {
+  x: '#ef4444',
+  y: '#10b981',
+  z: '#0ea5e9',
+};
+
+const AXIS_LABEL: Record<Axis, string> = { x: 'X', y: 'Y', z: 'Z' };
+
+function CutsTab() {
+  const enabled = useModelStore((s) => s.sectionEnabled);
+  const invert = useModelStore((s) => s.sectionInvert);
+  const level = useModelStore((s) => s.sectionLevel);
+  const setSectionEnabled = useModelStore((s) => s.setSectionEnabled);
+  const setSectionInvert = useModelStore((s) => s.setSectionInvert);
+  const setSectionLevel = useModelStore((s) => s.setSectionLevel);
+  const activeModelId = useModelStore((s) => s.activeModelId);
+
+  const [bounds, setBounds] = useState<Record<Axis, AxisRange> | null>(null);
+  const [step, setStep] = useState<number>(0.01); // 10mm por padrão
+
+  useEffect(() => {
+    setBounds(computeBoundsByAxis());
+  }, [activeModelId]);
+
+  const handleStepChange = (sVal: number) => {
+    setStep(sVal);
+  };
+
+  const handleAdjust = (axis: Axis, dir: 1 | -1) => {
+    const range = bounds?.[axis];
+    if (!range) return;
+    const currentVal = level[axis];
+    const newVal = Math.max(range.min, Math.min(range.max, currentVal + dir * step));
+    setSectionLevel(axis, newVal);
+  };
+
+  const handleSetPreset = (axis: Axis, type: 'min' | 'center' | 'max') => {
+    const range = bounds?.[axis];
+    if (!range) return;
+    if (type === 'min') {
+      setSectionLevel(axis, range.min);
+    } else if (type === 'center') {
+      setSectionLevel(axis, (range.min + range.max) / 2);
+    } else if (type === 'max') {
+      setSectionLevel(axis, range.max);
+    }
+  };
+
+  const handleRecalculate = () => {
+    setBounds(computeBoundsByAxis());
+  };
+
+  return (
+    <group>
+      {/* Cabeçalho / Passo */}
+      <Text position={[-0.24, 0.115, 0]} fontSize={0.0085} color="#94a3b8" anchorX="left" anchorY="middle">
+        Passo do Ajuste:
+      </Text>
+      <XR3DButton position={[-0.09, 0.115, 0]} size={[0.048, 0.02]}
+        label="1 mm" active={step === 0.001} onClick={() => handleStepChange(0.001)} fontSize={0.007} />
+      <XR3DButton position={[-0.038, 0.115, 0]} size={[0.048, 0.02]}
+        label="10 mm" active={step === 0.01} onClick={() => handleStepChange(0.01)} fontSize={0.007} />
+      <XR3DButton position={[0.014, 0.115, 0]} size={[0.048, 0.02]}
+        label="50 mm" active={step === 0.05} onClick={() => handleStepChange(0.05)} fontSize={0.007} />
+
+      <XR3DButton position={[0.165, 0.115, 0]} size={[0.12, 0.02]}
+        label="↺ Recalcular Limites" active={false} onClick={handleRecalculate} fontSize={0.007} />
+
+      {/* Controles dos Eixos */}
+      {(['x', 'y', 'z'] as Axis[]).map((axis, idx) => {
+        const yOffset = 0.055 - idx * 0.055;
+        const range = bounds?.[axis];
+        const minMM = range ? range.min * 1000 : 0;
+        const maxMM = range ? range.max * 1000 : 100;
+        const valMM = level[axis] * 1000;
+        const isAxisEnabled = enabled[axis];
+        const isAxisInverted = invert[axis];
+        const isAxisDisabled = !range;
+
+        return (
+          <group key={axis} position={[0, yOffset, 0]}>
+            {/* Eixo label */}
+            <Text position={[-0.24, 0, 0]} fontSize={0.014} color={AXIS_COLOR[axis]} anchorX="left" anchorY="middle">
+              {AXIS_LABEL[axis]}
+            </Text>
+
+            {/* Toggle Cortar */}
+            <XR3DButton position={[-0.19, 0, 0]} size={[0.045, 0.022]}
+              label={isAxisEnabled ? "ON" : "OFF"} active={isAxisEnabled}
+              disabled={isAxisDisabled}
+              onClick={() => setSectionEnabled(axis, !isAxisEnabled)}
+              fontSize={0.0075} />
+
+            {/* Toggle Inverter */}
+            <XR3DButton position={[-0.135, 0, 0]} size={[0.052, 0.022]}
+              label={isAxisInverted ? "Invertido" : "Inverter"} active={isAxisInverted}
+              disabled={isAxisDisabled || !isAxisEnabled}
+              onClick={() => setSectionInvert(axis, !isAxisInverted)}
+              fontSize={0.007} />
+
+            {/* Valor */}
+            <Text position={[-0.09, 0, 0]} fontSize={0.0085} color={isAxisEnabled ? "#ffffff" : "#64748b"} anchorX="left" anchorY="middle">
+              {isAxisDisabled ? "sem peça" : `${valMM.toFixed(1)} mm`}
+            </Text>
+
+            {/* Menos/Mais */}
+            <XR3DButton position={[0.01, 0, 0]} size={[0.024, 0.022]}
+              label="−" disabled={isAxisDisabled || !isAxisEnabled}
+              onClick={() => handleAdjust(axis, -1)}
+              fontSize={0.01} />
+            <XR3DButton position={[0.038, 0, 0]} size={[0.024, 0.022]}
+              label="+" disabled={isAxisDisabled || !isAxisEnabled}
+              onClick={() => handleAdjust(axis, 1)}
+              fontSize={0.01} />
+
+            {/* Presets */}
+            <XR3DButton position={[0.076, 0, 0]} size={[0.034, 0.022]}
+              label="Min" disabled={isAxisDisabled || !isAxisEnabled}
+              onClick={() => handleSetPreset(axis, 'min')}
+              fontSize={0.007} />
+            <XR3DButton position={[0.118, 0, 0]} size={[0.042, 0.022]}
+              label="Centro" disabled={isAxisDisabled || !isAxisEnabled}
+              onClick={() => handleSetPreset(axis, 'center')}
+              fontSize={0.007} />
+            <XR3DButton position={[0.162, 0, 0]} size={[0.036, 0.022]}
+              label="Max" disabled={isAxisDisabled || !isAxisEnabled}
+              onClick={() => handleSetPreset(axis, 'max')}
+              fontSize={0.007} />
+          </group>
+        );
+      })}
+    </group>
+  );
+}
+
 function SceneTab() {
  const models = useModelStore((s) => s.models);
  const activeId = useModelStore((s) => s.activeModelId);
@@ -356,6 +579,7 @@ function ToolsTab(p: XRHudInWorldProps) {
  const setScaleRatio = useModelStore((s) => s.setScaleRatio);
  const resetScale = useModelStore((s) => s.resetScale);
  const clearMeasurements = useModelStore((s) => s.clearMeasurements);
+  const undoLastMeasurement = useModelStore((s) => s.undoLastMeasurement);

  return (
    <group>
@@ -414,21 +638,24 @@ function ToolsTab(p: XRHudInWorldProps) {
        const preset = SCALE_PRESETS.find((sp) => sp.label === lbl)!;
        return (
          <XR3DButton key={lbl}
-            position={[-0.16 + i * 0.06, -0.14, 0]} size={[0.055, 0.022]} label={lbl}
+            position={[-0.16 + i * 0.054, -0.14, 0]} size={[0.05, 0.022]} label={lbl}
            active={scaleRatio.label === lbl}
            onClick={() => setScaleRatio(preset)} />
        );
      })}
-      <XR3DButton position={[0.10, -0.14, 0]} size={[0.062, 0.022]}
+      <XR3DButton position={[0.076, -0.14, 0]} size={[0.046, 0.022]}
        label="↺ Reset" color="#dc2626"
-        onClick={resetScale} fontSize={0.0085} />
-      <XR3DButton position={[0.17, -0.14, 0]} size={[0.062, 0.022]}
-        label="✕ Medidas" color="#dc2626"
-        onClick={clearMeasurements} fontSize={0.0085} />
+        onClick={resetScale} fontSize={0.0075} />
+      <XR3DButton position={[0.126, -0.14, 0]} size={[0.05, 0.022]}
+        label="⎌ Desfaz" color="#3b82f6"
+        onClick={undoLastMeasurement} fontSize={0.0075} />
+      <XR3DButton position={[0.18, -0.14, 0]} size={[0.05, 0.022]}
+        label="✕ Limpa" color="#dc2626"
+        onClick={clearMeasurements} fontSize={0.0075} />

      {measureMode && (
        <Text position={[-0.24, -0.17, 0]} fontSize={0.0065} color="#a3e635" anchorX="left" maxWidth={0.5}>
-          Gatilho D: marcar · A: desfazer · B: limpar · Gatilho E: alternar snap
+          Gatilho D: marcar ponto · Gatilho E: alternar snap · A/B/X/Y: abrir Menu
        </Text>
      )}

@@ -444,11 +671,11 @@ function GridFloorRow() {
  const setGridAutoFollow = useModelStore((s) => s.setGridAutoFollow);
  const setGridY = useModelStore((s) => s.setGridY);
  const nudgeGridY = useModelStore((s) => s.nudgeGridY);
-  const placeAtFloor = () => {
-    // Headset eye Y minus avg standing eye height (1.6 m)
-    const floor = camera.position.y - 1.6;
-    setGridY(floor);
-  };
+  const gridCalibMode = useModelStore((s) => s.gridCalibMode);
+  const setGridCalibMode = useModelStore((s) => s.setGridCalibMode);
+  const gridLandingMode = useModelStore((s) => s.gridLandingMode);
+  const setGridLandingMode = useModelStore((s) => s.setGridLandingMode);
+
  return (
    <group>
      <Text position={[-0.24, -0.15, 0]} fontSize={0.008} color="#94a3b8" anchorX="left">
@@ -462,8 +689,10 @@ function GridFloorRow() {
        onClick={() => nudgeGridY(-0.01)} />
      <XR3DButton position={[0.005, -0.175, 0]} size={[0.04, 0.022]} label="+1cm"
        onClick={() => nudgeGridY(0.01)} />
-      <XR3DButton position={[0.07, -0.175, 0]} size={[0.075, 0.022]} label="Pousar chão"
-        onClick={placeAtFloor} />
+      <XR3DButton position={[0.07, -0.175, 0]} size={[0.075, 0.022]} label={gridLandingMode ? "Pousando" : "Pousar"}
+        active={gridLandingMode} onClick={() => setGridLandingMode(!gridLandingMode)} />
+      <XR3DButton position={[0.155, -0.175, 0]} size={[0.075, 0.022]} label={gridCalibMode ? "Calibrando" : "Calibrar"}
+        active={gridCalibMode} onClick={() => setGridCalibMode(!gridCalibMode)} />
    </group>
  );
 }
@@ -718,3 +947,203 @@ function RecIndicator() {
    </group>
  );
 }
+
+function CalibrationTab() {
+  const activeModelId = useModelStore((s) => s.activeModelId);
+  const models = useModelStore((s) => s.models);
+  const setCalibrationStore = useModelStore((s) => s.setCalibration);
+  const active = models.find((m) => m.id === activeModelId);
+
+  // Escuta o barramento de calibração do XR
+  const [, force] = useState(0);
+  useEffect(() => subscribeXRCalibration(() => force((t) => t + 1)), []);
+
+  const isCalibrating = xrCalibration.step !== 'idle' && xrCalibration.step !== 'done';
+  const isDone = xrCalibration.step === 'done';
+  
+  const isCubeMode = xrCalibration.alignType === 'cube';
+  const isVirtRealMode = xrCalibration.alignType === 'virt-real';
+
+  const onClickCube = () => {
+    if (isCalibrating && isCubeMode) {
+      cancelXRCalibration();
+      return;
+    }
+    if (isDone && isCubeMode) {
+      cancelXRCalibration();
+      return;
+    }
+    if (!active) {
+      toast.error('Selecione uma peça antes de calibrar');
+      return;
+    }
+    if (active.locked) {
+      toast.error('Peça travada — destranque a peça para calibrar');
+      return;
+    }
+    startXRCalibration(active.id, 'cube');
+  };
+
+  const onClickVirtReal = () => {
+    if (isCalibrating && isVirtRealMode) {
+      cancelXRCalibration();
+      return;
+    }
+    if (isDone && isVirtRealMode) {
+      cancelXRCalibration();
+      return;
+    }
+    if (!active) {
+      toast.error('Selecione uma peça antes de calibrar');
+      return;
+    }
+    if (active.locked) {
+      toast.error('Peça travada — destranque a peça para calibrar');
+      return;
+    }
+    startXRCalibration(active.id, 'virt-real');
+  };
+
+  const onResetCalibration = () => {
+    if (!active) return;
+    setCalibrationStore(active.id, null);
+    toast.success('Calibração removida');
+  };
+
+  const STEP_HINTS_AR: Record<string, string> = {
+    'await-cube-1': '1/3 - Clique numa face do Cubo à direita',
+    'await-model-1': '1/3 - Aponte e clique na face correspondente da peça',
+    'await-cube-2': '2/3 - Clique em outra face do Cubo',
+    'await-model-2': '2/3 - Clique na face correspondente da peça',
+    'await-cube-3': '3/3 (Verificar) - Clique em uma 3ª face do Cubo (opcional)',
+    'await-model-3': '3/3 - Clique na face correspondente da peça',
+    'await-real-1': '1/3 Real - Clique na 1ª superfície da peça REAL',
+    'await-virtual-1': '1/3 Virtual - Clique na 1ª correspondente da peça VIRTUAL',
+    'await-real-2': '2/3 Real - Clique na 2ª superfície da peça REAL',
+    'await-virtual-2': '2/3 Virtual - Clique na 2ª correspondente da peça VIRTUAL',
+    'await-real-3': '3/3 Real - Clique na 3ª superfície da peça REAL',
+    'await-virtual-3': '3/3 Virtual - Clique na 3ª correspondente da peça VIRTUAL',
+    'done': 'Calibração concluída com sucesso!',
+  };
+
+  const currentHint = STEP_HINTS_AR[xrCalibration.step] ?? 'Selecione "Cubo" ou "Virt/Real" para calibrar o modelo';
+
+  // Configurações dinâmicas de estados de botão
+  let cubeLabel = 'Cubo';
+  let cubeActive = false;
+  let cubeColor = '#3b82f6';
+  
+  let vrLabel = 'Virt/Real';
+  let vrActive = false;
+  let vrColor = '#3b82f6';
+
+  if (isCalibrating) {
+    if (isCubeMode) {
+      cubeLabel = 'Cancelar';
+      cubeActive = true;
+      cubeColor = '#d97706';
+    } else {
+      cubeColor = '#475569'; 
+    }
+
+    if (isVirtRealMode) {
+      vrLabel = 'Cancelar';
+      vrActive = true;
+      vrColor = '#d97706';
+    } else {
+      vrColor = '#475569';
+    }
+  } else if (isDone) {
+    if (isCubeMode) {
+      cubeLabel = 'Concluído';
+      cubeActive = true;
+      cubeColor = '#22c55e';
+    }
+    if (isVirtRealMode) {
+      vrLabel = 'Concluído';
+      vrActive = true;
+      vrColor = '#22c55e';
+    }
+  }
+
+  return (
+    <group>
+      {/* Coluna da esquerda: Informações e Fluxo */}
+      <Text position={[-0.24, 0.11, 0]} fontSize={0.012} color="#3b82f6" anchorX="left" anchorY="middle">
+        Calibração 3D da Peça
+      </Text>
+      
+      <Text position={[-0.24, 0.07, 0]} fontSize={0.008} color="#cbd5e1" anchorX="left" anchorY="top" maxWidth={0.28}>
+        Alinhe o modelo virtual 3D com a peça real usando o Cubo ou clique em 3 pontos de controle ("Virt/Real").
+      </Text>
+
+      {/* Caixa de status do passo atual */}
+      <group position={[-0.24, 0.00, 0]}>
+        <mesh position={[0.13, 0, -0.0005]}>
+          <planeGeometry args={[0.26, 0.05]} />
+          <meshBasicMaterial color="#111827" transparent opacity={0.65} />
+        </mesh>
+        <Text position={[0.01, 0, 0.001]} fontSize={0.008} color={isDone ? '#22c55e' : isCalibrating ? '#f59e0b' : '#ffffff'} anchorX="left" anchorY="middle" maxWidth={0.24}>
+          {currentHint}
+        </Text>
+        {isDone && Number.isFinite(xrCalibration.verifyErrorDeg) && isCubeMode && (
+          <Text position={[0.01, -0.016, 0.001]} fontSize={0.007} color="#22c55e" anchorX="left" anchorY="middle">
+            Erro residual calculado: {xrCalibration.verifyErrorDeg.toFixed(1)}°
+          </Text>
+        )}
+      </group>
+
+      {/* Botões na parte inferior esquerda */}
+      <group position={[-0.24, -0.06, 0]}>
+        <XR3DButton
+          position={[0.045, 0, 0]}
+          size={[0.08, 0.026]}
+          label={cubeLabel}
+          active={cubeActive}
+          color={cubeColor}
+          onClick={onClickCube}
+          fontSize={0.008}
+        />
+
+        <XR3DButton
+          position={[0.135, 0, 0]}
+          size={[0.08, 0.026]}
+          label={vrLabel}
+          active={vrActive}
+          color={vrColor}
+          onClick={onClickVirtReal}
+          fontSize={0.008}
+        />
+        
+        {active?.calibrationQuat && !isCalibrating && (
+          <XR3DButton
+            position={[0.225, 0, 0]}
+            size={[0.08, 0.026]}
+            label="Limpar"
+            color="#dc2626"
+            onClick={onResetCalibration}
+            fontSize={0.008}
+          />
+        )}
+      </group>
+
+      <Text position={[-0.24, -0.11, 0]} fontSize={0.007} color="#64748b" anchorX="left" maxWidth={0.28}>
+        {active ? `Peça ativa: ${active.fileName}` : 'Selecione uma peça na aba "Cena"'}
+      </Text>
+
+      {/* Coluna da direita: Cubo de views 3D interativo */}
+      <group position={[0.14, -0.01, 0.04]}>
+        <XRViewCube activeModelId={activeModelId} size={0.075} />
+        {/* Tripé dos eixos abaixo do cubo */}
+        <group position={[0, -0.06, -0.04]} scale={[0.035, 0.035, 0.035]}>
+          <arrowHelper args={[new THREE.Vector3(1, 0, 0), new THREE.Vector3(0, 0, 0), 0.7, 0xff4444, 0.18, 0.12]} />
+          <arrowHelper args={[new THREE.Vector3(0, 1, 0), new THREE.Vector3(0, 0, 0), 0.7, 0x44ff66, 0.18, 0.12]} />
+          <arrowHelper args={[new THREE.Vector3(0, 0, 1), new THREE.Vector3(0, 0, 0), 0.7, 0x4488ff, 0.18, 0.12]} />
+        </group>
+        <Text position={[0, 0.065, -0.04]} fontSize={0.008} color="#cbd5e1" anchorX="center" anchorY="middle">
+          Cubo de Calibração
+        </Text>
+      </group>
+    </group>
+  );
+}
@@ -0,0 +1,125 @@
+import { useRef, useMemo, useEffect, useState } from 'react';
+import { useFrame, ThreeEvent } from '@react-three/fiber';
+import * as THREE from 'three';
+import { pushXRCubeFace } from './xrCalibrationBus';
+import { getModelLocalGroup } from '@/lib/modelTransforms';
+
+function makeFaceTexture(label: string, accent: boolean): THREE.CanvasTexture {
+  const size = 256;
+  const c = document.createElement('canvas');
+  c.width = size;
+  c.height = size;
+  const ctx = c.getContext('2d')!;
+  const grad = ctx.createLinearGradient(0, 0, 0, size);
+  grad.addColorStop(0, accent ? '#1e3a8a' : '#111827');
+  grad.addColorStop(1, accent ? '#0f172a' : '#030712');
+  ctx.fillStyle = grad;
+  ctx.fillRect(0, 0, size, size);
+  ctx.strokeStyle = '#3b82f6';
+  ctx.lineWidth = 8;
+  ctx.strokeRect(4, 4, size - 8, size - 8);
+  ctx.fillStyle = '#ffffff';
+  ctx.font = '700 52px monospace';
+  ctx.textAlign = 'center';
+  ctx.textBaseline = 'middle';
+  ctx.shadowColor = '#3b82f6';
+  ctx.shadowBlur = 10;
+  ctx.fillText(label, size / 2, size / 2);
+  const tex = new THREE.CanvasTexture(c);
+  tex.anisotropy = 4;
+  tex.needsUpdate = true;
+  return tex;
+}
+
+const FACE_DEFS: { label: string; dir: [number, number, number] }[] = [
+  { label: 'DIR',    dir: [ 1, 0, 0] },
+  { label: 'ESQ',    dir: [-1, 0, 0] },
+  { label: 'TOPO',   dir: [ 0, 1, 0] },
+  { label: 'BASE',   dir: [ 0,-1, 0] },
+  { label: 'FRENTE', dir: [ 0, 0, 1] },
+  { label: 'ATRÁS',  dir: [ 0, 0,-1] },
+];
+
+export function XRViewCube({ activeModelId, size = 0.06 }: { activeModelId: string | null; size?: number }) {
+  const groupRef = useRef<THREE.Group>(null);
+  const [hover, setHover] = useState<number | null>(null);
+
+  const materials = useMemo(() => {
+    return FACE_DEFS.map((f, i) => {
+      const tex = makeFaceTexture(f.label, false);
+      const mat = new THREE.MeshBasicMaterial({ map: tex });
+      mat.userData.baseTex = tex;
+      mat.userData.hoverTex = makeFaceTexture(f.label, true);
+      mat.userData.faceIndex = i;
+      return mat;
+    });
+  }, []);
+
+  useEffect(() => {
+    return () => {
+      materials.forEach((m) => {
+        m.userData.baseTex?.dispose?.();
+        m.userData.hoverTex?.dispose?.();
+        m.dispose();
+      });
+    };
+  }, [materials]);
+
+  useEffect(() => {
+    materials.forEach((m, i) => {
+      m.map = i === hover ? m.userData.hoverTex : m.userData.baseTex;
+      m.needsUpdate = true;
+    });
+  }, [hover, materials]);
+
+  const modelQuat = useMemo(() => new THREE.Quaternion(), []);
+
+  const getModelWorldQuat = (): THREE.Quaternion => {
+    const g = getModelLocalGroup(activeModelId);
+    if (g) {
+      g.updateWorldMatrix(true, false);
+      g.getWorldQuaternion(modelQuat);
+      return modelQuat;
+    }
+    modelQuat.identity();
+    return modelQuat;
+  };
+
+  useFrame(() => {
+    if (groupRef.current) {
+      // Sincroniza a rotação do cubo no HUD AR com a rotação do modelo ativo no mundo AR.
+      // Desta forma, o cubo reflete a orientação 3D da peça.
+      groupRef.current.quaternion.copy(getModelWorldQuat());
+    }
+  });
+
+  const onClick = (e: ThreeEvent<MouseEvent>) => {
+    e.stopPropagation();
+    const idx = e.face?.materialIndex;
+    if (idx == null) return;
+    const def = FACE_DEFS[idx];
+    if (!def) return;
+    const dirWorld = new THREE.Vector3(...def.dir).applyQuaternion(getModelWorldQuat()).normalize();
+    pushXRCubeFace(dirWorld);
+  };
+
+  return (
+    <group ref={groupRef}>
+      <mesh
+        material={materials}
+        onClick={onClick}
+        onPointerOver={(e) => {
+          e.stopPropagation();
+          const idx = e.face?.materialIndex ?? null;
+          setHover(idx);
+        }}
+        onPointerOut={(e) => {
+          e.stopPropagation();
+          setHover(null);
+        }}
+      >
+        <boxGeometry args={[size, size, size]} />
+      </mesh>
+    </group>
+  );
+}
@@ -0,0 +1,274 @@
+import * as THREE from 'three';
+import { useModelStore } from '@/stores/useModelStore';
+
+export type XRCalibrationStep =
+  | 'idle'
+  | 'await-cube-1'
+  | 'await-model-1'
+  | 'await-cube-2'
+  | 'await-model-2'
+  | 'await-cube-3' // opcional verificação
+  | 'await-model-3'
+  | 'await-real-1'
+  | 'await-virtual-1'
+  | 'await-real-2'
+  | 'await-virtual-2'
+  | 'await-real-3'
+  | 'await-virtual-3'
+  | 'done';
+
+interface XRPair {
+  cube: THREE.Vector3;
+  model: THREE.Vector3;
+}
+
+interface XRCalState {
+  step: XRCalibrationStep;
+  modelId: string | null;
+  alignType: 'cube' | 'virt-real' | null;
+  pairs: XRPair[];
+  realPoints: THREE.Vector3[];
+  virtualPoints: THREE.Vector3[];
+  pendingCube: THREE.Vector3 | null;
+  progress: number;
+  verifyErrorDeg: number;
+  listeners: Set<() => void>;
+}
+
+export const xrCalibration: XRCalState = {
+  step: 'idle',
+  modelId: null,
+  alignType: null,
+  pairs: [],
+  realPoints: [],
+  virtualPoints: [],
+  pendingCube: null,
+  progress: 0,
+  verifyErrorDeg: NaN,
+  listeners: new Set(),
+};
+
+function notify() {
+  xrCalibration.listeners.forEach((fn) => fn());
+}
+
+export function subscribeXRCalibration(fn: () => void): () => void {
+  xrCalibration.listeners.add(fn);
+  return () => {
+    xrCalibration.listeners.delete(fn);
+  };
+}
+
+export function startXRCalibration(modelId: string, type: 'cube' | 'virt-real' = 'cube') {
+  xrCalibration.modelId = modelId;
+  xrCalibration.alignType = type;
+  xrCalibration.pairs = [];
+  xrCalibration.realPoints = [];
+  xrCalibration.virtualPoints = [];
+  xrCalibration.pendingCube = null;
+  xrCalibration.progress = 0;
+  xrCalibration.verifyErrorDeg = NaN;
+  
+  if (type === 'cube') {
+    xrCalibration.step = 'await-cube-1';
+  } else {
+    xrCalibration.step = 'await-real-1';
+  }
+  notify();
+}
+
+export function cancelXRCalibration() {
+  xrCalibration.step = 'idle';
+  xrCalibration.modelId = null;
+  xrCalibration.alignType = null;
+  xrCalibration.pairs = [];
+  xrCalibration.realPoints = [];
+  xrCalibration.virtualPoints = [];
+  xrCalibration.pendingCube = null;
+  xrCalibration.progress = 0;
+  xrCalibration.verifyErrorDeg = NaN;
+  notify();
+}
+
+export function pushXRCubeFace(dirWorld: THREE.Vector3) {
+  if (xrCalibration.step === 'await-cube-1') {
+    xrCalibration.pendingCube = dirWorld.clone().normalize();
+    xrCalibration.step = 'await-model-1';
+  } else if (xrCalibration.step === 'await-cube-2') {
+    xrCalibration.pendingCube = dirWorld.clone().normalize();
+    xrCalibration.step = 'await-model-2';
+  } else if (xrCalibration.step === 'await-cube-3') {
+    xrCalibration.pendingCube = dirWorld.clone().normalize();
+    xrCalibration.step = 'await-model-3';
+  } else {
+    return;
+  }
+  notify();
+}
+
+export function pushXRRealPoint(pointWorld: THREE.Vector3) {
+  if (xrCalibration.alignType !== 'virt-real') return;
+  const p = pointWorld.clone();
+  if (xrCalibration.step === 'await-real-1') {
+    xrCalibration.realPoints[0] = p;
+    xrCalibration.step = 'await-virtual-1';
+    xrCalibration.progress = 0.16;
+  } else if (xrCalibration.step === 'await-real-2') {
+    xrCalibration.realPoints[1] = p;
+    xrCalibration.step = 'await-virtual-2';
+    xrCalibration.progress = 0.5;
+  } else if (xrCalibration.step === 'await-real-3') {
+    xrCalibration.realPoints[2] = p;
+    xrCalibration.step = 'await-virtual-3';
+    xrCalibration.progress = 0.83;
+  }
+  notify();
+}
+
+export function pushXRVirtualPoint(pointLocalPivot: THREE.Vector3) {
+  if (xrCalibration.alignType !== 'virt-real') return;
+  const p = pointLocalPivot.clone();
+  if (xrCalibration.step === 'await-virtual-1') {
+    xrCalibration.virtualPoints[0] = p;
+    xrCalibration.step = 'await-real-2';
+    xrCalibration.progress = 0.33;
+  } else if (xrCalibration.step === 'await-virtual-2') {
+    xrCalibration.virtualPoints[1] = p;
+    xrCalibration.step = 'await-real-3';
+    xrCalibration.progress = 0.66;
+  } else if (xrCalibration.step === 'await-virtual-3') {
+    xrCalibration.virtualPoints[2] = p;
+    xrCalibration.step = 'done';
+    xrCalibration.progress = 1.0;
+  }
+  notify();
+}
+
+function snapToPrincipalAxis(v: THREE.Vector3, maxDeg = 12): THREE.Vector3 {
+  const cosT = Math.cos(THREE.MathUtils.degToRad(maxDeg));
+  const axes = [
+    new THREE.Vector3(1, 0, 0),
+    new THREE.Vector3(-1, 0, 0),
+    new THREE.Vector3(0, 1, 0),
+    new THREE.Vector3(0, -1, 0),
+    new THREE.Vector3(0, 0, 1),
+    new THREE.Vector3(0, 0, -1),
+  ];
+  let best = v;
+  let bestDot = cosT;
+  for (const a of axes) {
+    const d = v.dot(a);
+    if (d > bestDot) {
+      bestDot = d;
+      best = a.clone();
+    }
+  }
+  return best;
+}
+
+export function pushXRModelFaceNormal(normalWorld: THREE.Vector3, calGroupWorldQuat: THREE.Quaternion) {
+  if (!xrCalibration.pendingCube) return;
+  const cubeWorld = xrCalibration.pendingCube;
+  const inv = calGroupWorldQuat.clone().invert();
+  const cubeLocal = cubeWorld.clone().applyQuaternion(inv).normalize();
+  const modelLocalRaw = normalWorld.clone().applyQuaternion(inv).normalize();
+  const modelLocal = snapToPrincipalAxis(modelLocalRaw, 12);
+  xrCalibration.pairs.push({ cube: cubeLocal, model: modelLocal });
+  xrCalibration.pendingCube = null;
+
+  if (xrCalibration.step === 'await-model-1') {
+    xrCalibration.step = 'await-cube-2';
+    xrCalibration.progress = 0.33;
+  } else if (xrCalibration.step === 'await-model-2') {
+    xrCalibration.progress = 0.75;
+    xrCalibration.step = 'await-cube-3';
+  } else if (xrCalibration.step === 'await-model-3') {
+    xrCalibration.progress = 1;
+    xrCalibration.verifyErrorDeg = computeXRVerifyError(xrCalibration.pairs);
+    xrCalibration.step = 'done';
+  }
+  notify();
+}
+
+export function computeXRCalibrationQuaternion(pairs: XRPair[]): THREE.Quaternion | null {
+  if (pairs.length < 2) return null;
+  const n1 = pairs[0].model.clone().normalize();
+  const n2raw = pairs[1].model.clone();
+  const n2 = n2raw.sub(n1.clone().multiplyScalar(n2raw.dot(n1)));
+  if (n2.lengthSq() < 1e-6) return null;
+  n2.normalize();
+  const n3 = new THREE.Vector3().crossVectors(n1, n2);
+
+  const c1 = pairs[0].cube.clone().normalize();
+  const c2raw = pairs[1].cube.clone();
+  const c2 = c2raw.sub(c1.clone().multiplyScalar(c2raw.dot(c1)));
+  if (c2.lengthSq() < 1e-6) return null;
+  c2.normalize();
+  const c3 = new THREE.Vector3().crossVectors(c1, c2);
+
+  const N = new THREE.Matrix4().makeBasis(n1, n2, n3);
+  const C = new THREE.Matrix4().makeBasis(c1, c2, c3);
+  const Nt = N.clone().transpose();
+  const R = new THREE.Matrix4().multiplyMatrices(C, Nt);
+  const q = new THREE.Quaternion().setFromRotationMatrix(R);
+  return q;
+}
+
+export function computeXRVerifyError(pairs: XRPair[]): number {
+  if (pairs.length < 3) return NaN;
+  const q = computeXRCalibrationQuaternion(pairs.slice(0, 2));
+  if (!q) return NaN;
+  const predicted = pairs[2].model.clone().applyQuaternion(q).normalize();
+  const target = pairs[2].cube.clone().normalize();
+  const cos = THREE.MathUtils.clamp(predicted.dot(target), -1, 1);
+  return THREE.MathUtils.radToDeg(Math.acos(cos));
+}
+
+export function computeVirtRealTransform(
+  v: THREE.Vector3[],
+  r: THREE.Vector3[]
+): { quaternion: THREE.Quaternion; position: THREE.Vector3 } | null {
+  if (v.length < 3 || r.length < 3) return null;
+
+  const v1 = v[0];
+  const v2 = v[1];
+  const v3 = v[2];
+
+  const r1 = r[0];
+  const r2 = r[1];
+  const r3 = r[2];
+
+  // 1. Basis local virtual
+  const xv = new THREE.Vector3().subVectors(v2, v1).normalize();
+  const v3_proj = new THREE.Vector3().subVectors(v3, v1);
+  const dot_v = v3_proj.dot(xv);
+  const yv = v3_proj.clone().sub(xv.clone().multiplyScalar(dot_v));
+  if (yv.lengthSq() < 1e-6) return null;
+  yv.normalize();
+  const zv = new THREE.Vector3().crossVectors(xv, yv).normalize();
+
+  // 2. Basis de mundo real
+  const xr = new THREE.Vector3().subVectors(r2, r1).normalize();
+  const r3_proj = new THREE.Vector3().subVectors(r3, r1);
+  const dot_r = r3_proj.dot(xr);
+  const yr = r3_proj.clone().sub(xr.clone().multiplyScalar(dot_r));
+  if (yr.lengthSq() < 1e-6) return null;
+  yr.normalize();
+  const zr = new THREE.Vector3().crossVectors(xr, yr).normalize();
+
+  // 3. Matriz de rotação R que mapeia virtual para real
+  const Mv = new THREE.Matrix4().makeBasis(xv, yv, zv);
+  const Mr = new THREE.Matrix4().makeBasis(xr, yr, zr);
+  const Mv_t = Mv.clone().transpose();
+  const R = Mr.clone().multiply(Mv_t);
+
+  const quaternion = new THREE.Quaternion().setFromRotationMatrix(R);
+
+  // 4. Translação T = r1 - R * v1
+  const rv1 = v1.clone().applyQuaternion(quaternion);
+  const position = new THREE.Vector3().subVectors(r1, rv1);
+
+  return { quaternion, position };
+}
+
+export const activeModelGroupRef = { current: null as THREE.Group | null };
@@ -75,7 +75,7 @@ export function startRecording() {
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
-    a.download = `tracksteel-AR-${new Date().toISOString().replace(/[:.]/g, '-')}.${ext}`;
+    a.download = `steelxr-AR-${new Date().toISOString().replace(/[:.]/g, '-')}.${ext}`;
    document.body.appendChild(a);
    a.click();
    document.body.removeChild(a);
@@ -123,7 +123,7 @@ export function captureScreenshot(): string | null {
    // Trigger download
    const a = document.createElement('a');
    a.href = dataUrl;
-    a.download = `tracksteel-AR-${new Date().toISOString().replace(/[:.]/g, '-')}.png`;
+    a.download = `steelxr-AR-${new Date().toISOString().replace(/[:.]/g, '-')}.png`;
    document.body.appendChild(a);
    a.click();
    document.body.removeChild(a);
@@ -3,6 +3,7 @@ import { useFrame, useThree } from '@react-three/fiber';
 import * as THREE from 'three';
 // DEVKIT: remove this import + the fake-input block in useFrame to strip devkit
 import { fakeInput, isFakeActive } from '@/devkit/fakeInputStore';
+import { useModelStore } from '@/stores/useModelStore';

 export interface GrabState {
  /** Analog grip pressure (0..1) */
@@ -108,6 +109,10 @@ export function useControllerGrab() {
        const pose = frame.getPose(source.gripSpace, referenceSpace);
        if (pose) {
          slot.gripWorld.fromArray(pose.transform.matrix);
+          const xrRig = useModelStore.getState().xrRig;
+          if (xrRig) {
+            slot.gripWorld.premultiply(xrRig.matrixWorld);
+          }
          slot.hasPose = true;
        }
      }
@@ -7,6 +7,53 @@ const WASM_PATH = 'https://unpkg.com/web-ifc@0.0.57/';
 /**
 * Convert an IFC file (ArrayBuffer) into a GLB Blob using web-ifc + GLTFExporter.
 */
+function getMaterialName(ifcApi: WebIFC.IfcAPI, modelID: number, matRef: any): string | null {
+  if (!matRef) return null;
+  const matId = matRef.value;
+  if (!matId) return null;
+  try {
+    const matLine = ifcApi.GetLine(modelID, matId);
+    if (!matLine) return null;
+    
+    if (matLine.Name && matLine.Name.value) {
+      return matLine.Name.value;
+    }
+    
+    if (matLine.Materials) {
+      for (const mRef of matLine.Materials) {
+        const name = getMaterialName(ifcApi, modelID, mRef);
+        if (name) return name;
+      }
+    }
+    
+    if (matLine.MaterialConstituents) {
+      for (const mcRef of matLine.MaterialConstituents) {
+        const mcLine = ifcApi.GetLine(modelID, mcRef.value);
+        if (mcLine && mcLine.Material) {
+          const name = getMaterialName(ifcApi, modelID, mcLine.Material);
+          if (name) return name;
+        }
+      }
+    }
+    
+    if (matLine.MaterialProfileSet) {
+      return getMaterialName(ifcApi, modelID, matLine.MaterialProfileSet);
+    }
+    if (matLine.MaterialProfiles) {
+      for (const mpRef of matLine.MaterialProfiles) {
+        const mpLine = ifcApi.GetLine(modelID, mpRef.value);
+        if (mpLine && mpLine.Material) {
+          const name = getMaterialName(ifcApi, modelID, mpLine.Material);
+          if (name) return name;
+        }
+      }
+    }
+  } catch (err) {
+    // Silencia erros de atributos inexistentes
+  }
+  return null;
+}
+
 export async function parseIFCtoThree(buffer: ArrayBuffer): Promise<THREE.Scene> {
  const ifcApi = new WebIFC.IfcAPI();
  ifcApi.SetWasmPath(WASM_PATH, true);
@@ -15,6 +62,87 @@ export async function parseIFCtoThree(buffer: ArrayBuffer): Promise<THREE.Scene>
  const data = new Uint8Array(buffer);
  const modelID = ifcApi.OpenModel(data);

+  // Mapeamento de materiais
+  const elementMaterialMap = new Map<number, string>();
+  try {
+    const rels = ifcApi.GetLineIDsWithType(modelID, WebIFC.IFCRELASSOCIATESMATERIAL);
+    for (let i = 0; i < rels.size(); i++) {
+      const relId = rels.get(i);
+      const rel = ifcApi.GetLine(modelID, relId);
+      if (rel && rel.RelatedObjects && rel.RelatingMaterial) {
+        const matName = getMaterialName(ifcApi, modelID, rel.RelatingMaterial);
+        if (matName) {
+          for (const objRef of rel.RelatedObjects) {
+            elementMaterialMap.set(objRef.value, matName);
+          }
+        }
+      }
+    }
+  } catch (err) {
+    console.warn('[IFC Parser] Falha ao mapear materiais:', err);
+  }
+
+  // Mapeamento de propriedades adicionais
+  const elementPropertiesMap = new Map<number, Record<string, string>>();
+  try {
+    const relsProp = ifcApi.GetLineIDsWithType(modelID, WebIFC.IFCRELDEFINESBYPROPERTIES);
+    for (let i = 0; i < relsProp.size(); i++) {
+      const relId = relsProp.get(i);
+      const rel = ifcApi.GetLine(modelID, relId);
+      if (rel && rel.RelatedObjects && rel.RelatingPropertyDefinition) {
+        const propDefId = rel.RelatingPropertyDefinition.value;
+        const propDef = ifcApi.GetLine(modelID, propDefId);
+        
+        if (propDef) {
+          const props: Record<string, string> = {};
+          
+          if (propDef.HasProperties) {
+            for (const pRef of propDef.HasProperties) {
+              const pLine = ifcApi.GetLine(modelID, pRef.value);
+              if (pLine && pLine.Name) {
+                const name = pLine.Name.value;
+                let value = '';
+                if (pLine.NominalValue) {
+                  value = String(pLine.NominalValue.value);
+                }
+                if (name && value) {
+                  props[name] = value;
+                }
+              }
+            }
+          }
+          
+          if (propDef.Quantities) {
+            for (const qRef of propDef.Quantities) {
+              const qLine = ifcApi.GetLine(modelID, qRef.value);
+              if (qLine && qLine.Name) {
+                const name = qLine.Name.value;
+                let value = '';
+                if (qLine.LengthValue !== undefined) value = `${qLine.LengthValue.toFixed(1)} mm`;
+                else if (qLine.AreaValue !== undefined) value = `${qLine.AreaValue.toFixed(1)} m²`;
+                else if (qLine.VolumeValue !== undefined) value = `${qLine.VolumeValue.toFixed(2)} m³`;
+                else if (qLine.NominalValue) value = String(qLine.NominalValue.value);
+                
+                if (name && value) {
+                  props[name] = value;
+                }
+              }
+            }
+          }
+          
+          if (Object.keys(props).length > 0) {
+            for (const objRef of rel.RelatedObjects) {
+              const existing = elementPropertiesMap.get(objRef.value) ?? {};
+              elementPropertiesMap.set(objRef.value, { ...existing, ...props });
+            }
+          }
+        }
+      }
+    }
+  } catch (err) {
+    console.warn('[IFC Parser] Falha ao mapear propriedades:', err);
+  }
+
  const scene = new THREE.Scene();
  const materials: Map<number, THREE.MeshStandardMaterial> = new Map();

@@ -22,11 +150,38 @@ export async function parseIFCtoThree(buffer: ArrayBuffer): Promise<THREE.Scene>
    const placedGeometries = mesh.geometries;
    const expressID = (mesh as unknown as { expressID?: number }).expressID ?? 0;

-    // One Group per IfcProduct → represents a single "element" (beam, plate…).
-    // userData is preserved by GLTFExporter as `extras` and survives reload.
+    let name = '';
+    let tag = '';
+    let objectType = '';
+    let description = '';
+    try {
+      const elementLine = ifcApi.GetLine(modelID, expressID);
+      if (elementLine) {
+        name = elementLine.Name?.value ?? '';
+        tag = elementLine.Tag?.value ?? '';
+        objectType = elementLine.ObjectType?.value ?? '';
+        description = elementLine.Description?.value ?? '';
+      }
+    } catch (e) {}
+
+    const materialName = elementMaterialMap.get(expressID) ?? '';
+    const extraProps = elementPropertiesMap.get(expressID) ?? {};
+
    const elementGroup = new THREE.Group();
    elementGroup.name = `ifc_${expressID}`;
-    elementGroup.userData = { ifcElement: true, ifcId: expressID };
+    elementGroup.userData = {
+      ifcElement: true,
+      ifcId: expressID,
+      materialName,
+      properties: {
+        name,
+        tag,
+        objectType,
+        description,
+        material: materialName,
+        ...extraProps
+      }
+    };

    for (let i = 0; i < placedGeometries.size(); i++) {
      const placedGeometry = placedGeometries.get(i);
@@ -1,6 +1,7 @@
 import { useEffect, useRef, useCallback, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
-import { Upload, Glasses, CheckCircle, XCircle, Loader2, Box, Package } from 'lucide-react';
+import { Upload, Glasses, CheckCircle, XCircle, Loader2, Box, Package, Users, Info } from 'lucide-react';
+import { LandingContent } from '@/components/LandingContent';
 import { Button } from '@/components/ui/button';
 import { useModelStore } from '@/stores/useModelStore';
 import { toast } from 'sonner';
@@ -20,12 +21,13 @@ const Index = () => {
  const fileInputRef = useRef<HTMLInputElement>(null);
  const [loadingDemoIFC, setLoadingDemoIFC] = useState(false);
  const [loadingDemoCotovelo, setLoadingDemoCotovelo] = useState(false);
+  const [showLanding, setShowLanding] = useState(false);
  
  const [converting, setConverting] = useState(false);
-  const { model, addModel, models, maxModels, xrSupported, setXrSupported } = useModelStore();
+  const { model, addModel, models, maxModels, xrSupported, setXrSupported, ifcColorMode, setIfcColorMode } = useModelStore();

  // --- Painel de Logs Remotos em Tempo Real ---
-  const [debugLogs, setDebugLogs] = useState<{ level: 'info' | 'warn' | 'error'; message: string; timestamp: string; data?: any }[]>([]);
+  const [debugLogs, setDebugLogs] = useState<{ level: 'info' | 'warn' | 'error'; message: string; timestamp: string; data?: unknown }[]>([]);
  const [showLogs, setShowLogs] = useState(() => new URLSearchParams(window.location.search).get('viewlogs') === 'true');

  useEffect(() => {
@@ -204,22 +206,32 @@ const Index = () => {
        type="file"
        accept={ACCEPTED_EXTENSIONS}
        className="hidden"
+        title="Importar arquivo de modelo 3D"
        onChange={handleFileUpload} />


      {/* Logo area */}
-      <div className="mb-12 text-center">
-        <div className="mb-4 flex items-center justify-center gap-3">
-          <Box className="h-10 w-10 text-primary" />
-          <h1 className="text-3xl font-bold tracking-tight text-foreground md:text-4xl">
-            TrackSteel<span className="text-primary">XR</span>
-          </h1>
+      <div className="mb-10 flex flex-col items-center justify-center w-full">
+        <div className="relative flex items-center justify-center max-w-[280px] md:max-w-[320px] w-full px-4">
+          <img 
+            src="/logotipo_steelXR_transparente.png" 
+            alt="SteelXR Logo" 
+            className="w-full h-auto object-contain drop-shadow-[0_0_20px_rgba(251,191,36,0.18)]"
+          />
+          <Button 
+            variant="ghost" 
+            size="icon" 
+            className="absolute -right-8 md:-right-10 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground hover:bg-transparent" 
+            onClick={() => setShowLanding(!showLanding)} 
+            title="Sobre"
+          >
+            <Info className="h-5 w-5" />
+          </Button>
        </div>
-        <p className="font-mono text-sm uppercase tracking-widest text-muted-foreground">
-          Inspeção de Qualidade Industrial
-        </p>
      </div>

+      {showLanding && <LandingContent />}
+
      {/* Main card */}
      <div className="w-full max-w-md space-y-4">
        {/* Import button */}
@@ -253,6 +265,50 @@ const Index = () => {
          />
        </div>

+        {/* Escolha do Filtro de Cores (IFC) */}
+        <div className="flex flex-col gap-2 rounded-lg border border-border bg-card/50 p-3.5">
+          <div className="flex flex-col gap-0.5">
+            <Label className="text-xs font-semibold text-foreground">
+              Modo de Cores (IFC)
+            </Label>
+            <p className="text-[10px] text-muted-foreground">
+              Escolha como aplicar cores aos elementos do modelo
+            </p>
+          </div>
+          <div className="grid grid-cols-3 gap-1 bg-slate-950/40 p-1 rounded-md border border-border/40 mt-1">
+            <button
+              onClick={() => setIfcColorMode('none')}
+              className={`py-1.5 px-2 text-[10px] font-medium rounded transition-all ${
+                ifcColorMode === 'none'
+                  ? 'bg-primary text-primary-foreground shadow-sm'
+                  : 'text-muted-foreground hover:bg-slate-900/60 hover:text-foreground'
+              }`}
+            >
+              Cor Única
+            </button>
+            <button
+              onClick={() => setIfcColorMode('material')}
+              className={`py-1.5 px-2 text-[10px] font-medium rounded transition-all ${
+                ifcColorMode === 'material'
+                  ? 'bg-primary text-primary-foreground shadow-sm'
+                  : 'text-muted-foreground hover:bg-slate-900/60 hover:text-foreground'
+              }`}
+            >
+              Material
+            </button>
+            <button
+              onClick={() => setIfcColorMode('description')}
+              className={`py-1.5 px-2 text-[10px] font-medium rounded transition-all ${
+                ifcColorMode === 'description'
+                  ? 'bg-primary text-primary-foreground shadow-sm'
+                  : 'text-muted-foreground hover:bg-slate-900/60 hover:text-foreground'
+              }`}
+            >
+              Descrição
+            </button>
+          </div>
+        </div>
+
        {/* Demo buttons */}
        <div className="grid grid-cols-3 gap-2">
          <CloudLoader />
@@ -304,6 +360,15 @@ const Index = () => {
          Visualizar Modelo 3D
        </Button>

+        {/* Enter virtual meeting */}
+        <Button
+          className="h-14 w-full gap-3 text-base font-semibold bg-gradient-to-r from-violet-600 to-indigo-600 hover:from-violet-500 hover:to-indigo-500 text-white shadow-lg shadow-violet-500/20 hover:shadow-violet-500/35 border-0 transition-all duration-200"
+          onClick={() => navigate('/meeting')}>
+
+          <Users className="h-5 w-5" />
+          Reunião Virtual
+        </Button>
+
        {/* XR Status */}
        <div className="flex items-center justify-center gap-2 pt-2">
          {xrSupported === null ?
@@ -327,7 +392,7 @@ const Index = () => {

      {/* Footer */}
      <p className="mt-16 text-center font-mono text-xs text-muted-foreground/50">
-        TrackSteelXR v1.05 — Q.C. Inspection
+        SteelXR v1.13 — Q.C. Inspection
      </p>

      {showLogs && (
@@ -1,7 +1,9 @@
-import { useNavigate } from "react-router-dom";
-import { ArrowLeft, Glasses, Box, Ruler, FileText, Upload, Loader2 } from "lucide-react";
+import { useNavigate, useSearchParams } from "react-router-dom";
+import { supabase } from "@/integrations/supabase/client";
+import { ArrowLeft, Glasses, Box, Ruler, FileText, Upload, Loader2, Users, Menu, Target } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { useModelStore } from "@/stores/useModelStore";
+import { xrStore } from "@/stores/useXRStore";
 import { ModelViewerCanvas } from "@/components/three/ModelViewer";
 import { ViewerControls } from "@/components/ViewerControls";
 import { InspectionChecklist } from "@/components/InspectionChecklist";
@@ -20,18 +22,180 @@ import { Separator } from "@/components/ui/separator";
 import { getSupportedExtension, convertToGLB, ACCEPTED_EXTENSIONS } from "@/lib/convertToGLB";
 import { validateModelFile } from "@/lib/validateModelFile";
 import { convertIFCtoGLB } from "@/lib/convertIFC";
+import { mainCameraRef, mainControlsRef } from "@/components/three/viewCubeBus";

 const Viewer = () => {
  const navigate = useNavigate();
-  const { model, xrSupported, addModel, models, maxModels, scaleRatio } = useModelStore();
+  const {
+    model,
+    xrSupported,
+    addModel,
+    models,
+    maxModels,
+    scaleRatio,
+    fineTuning,
+    sectionEnabled,
+    sectionInvert,
+    sectionLevel,
+    hoverIfcProps
+  } = useModelStore();
  const fileInputRef = useRef<HTMLInputElement>(null);
  const [converting, setConverting] = useState(false);

+  const [isFullscreen, setIsFullscreen] = useState(false);
+  const [sidebarOpen, setSidebarOpen] = useState(true);
+
  useEffect(() => {
-    if (!model) {
+    const handleFullscreenChange = () => {
+      setIsFullscreen(!!document.fullscreenElement);
+    };
+    document.addEventListener("fullscreenchange", handleFullscreenChange);
+    return () => {
+      document.removeEventListener("fullscreenchange", handleFullscreenChange);
+    };
+  }, []);
+
+  const handleRecenter = useCallback(() => {
+    const camera = mainCameraRef.current;
+    const controls = mainControlsRef.current;
+    if (camera) {
+      camera.position.set(2, 2, 2);
+      camera.up.set(0, 1, 0);
+      camera.lookAt(0, 0, 0);
+    }
+    if (controls) {
+      controls.target.set(0, 0, 0);
+      controls.update();
+    }
+    toast.success("Visualização centralizada");
+  }, []);
+
+  const exitFullscreen = useCallback(() => {
+    if (document.fullscreenElement) {
+      document.exitFullscreen().catch((err) => {
+        console.error("Erro ao sair de tela cheia:", err);
+      });
+    }
+  }, []);
+
+  const [searchParams] = useSearchParams();
+  const roomId = searchParams.get("room");
+  const channelRef = useRef<ReturnType<typeof supabase.channel> | null>(null);
+
+  // Se não houver modelo e não estivermos em Reunião, volta para a Home
+  useEffect(() => {
+    if (!model && !roomId) {
      navigate("/");
    }
-  }, [model, navigate]);
+  }, [model, roomId, navigate]);
+
+  const sendMeetingUpdate = useCallback((ft: typeof fineTuning, secEn: typeof sectionEnabled, secLevel: typeof sectionLevel, secInv: typeof sectionInvert) => {
+    if (!roomId || !channelRef.current) return;
+
+    const enabledAxis = (['x', 'y', 'z'] as const).find(ax => secEn[ax]);
+    const isSectionActive = !!enabledAxis;
+    const sectionAxis = enabledAxis || 'y';
+    const sectionLevelVal = isSectionActive ? secLevel[sectionAxis] : 0.0;
+    const sectionInvertVal = isSectionActive ? secInv[sectionAxis] : false;
+
+    // Obtém dados da maquete ativa na store
+    const activeModelStore = useModelStore.getState().model;
+
+    const payload = {
+      rotation: [ft.rotX, ft.rotY, ft.rotZ],
+      scale: ft.scale,
+      sectionEnabled: isSectionActive,
+      sectionAxis,
+      sectionLevel: sectionLevelVal,
+      sectionInvert: sectionInvertVal,
+      modelUrl: activeModelStore?.url,
+      modelFileName: activeModelStore?.fileName,
+      modelFileSize: activeModelStore?.fileSize
+    };
+
+    console.log("📡 [Viewer Meeting Sync] Enviando atualização de apresentação:", payload);
+    channelRef.current.send({
+      type: 'broadcast',
+      event: 'presentation_update',
+      payload
+    });
+  }, [roomId]);
+
+  // Conecta ao canal do Supabase se o Viewer foi aberto no modo Reunião
+  useEffect(() => {
+    if (!roomId) return;
+
+    const finalRoomId = roomId.trim().toUpperCase();
+    console.log(`🔌 [Viewer Meeting Sync] Conectando ao canal da reunião: ${finalRoomId}`);
+
+    const channel = supabase.channel(`meeting_room_${finalRoomId}`, {
+      config: {
+        broadcast: { self: false }
+      }
+    });
+
+    channelRef.current = channel;
+
+    channel.subscribe((status) => {
+      console.log(`🔌 [Viewer Meeting Sync] Status do canal: ${status}`);
+      if (status === 'SUBSCRIBED') {
+        const state = useModelStore.getState();
+        sendMeetingUpdate(state.fineTuning, state.sectionEnabled, state.sectionLevel, state.sectionInvert);
+      }
+    });
+
+    return () => {
+      console.log(`🔌 [Viewer Meeting Sync] Desconectando do canal da reunião: ${finalRoomId}`);
+      channel.unsubscribe();
+      supabase.removeChannel(channel);
+    };
+  }, [roomId, sendMeetingUpdate]);
+
+  // Observa mudanças primitivas nas ferramentas 3D para propagação imediata via Broadcast
+  const rotX = fineTuning.rotX;
+  const rotY = fineTuning.rotY;
+  const rotZ = fineTuning.rotZ;
+  const scaleVal = fineTuning.scale;
+  
+  const secEnabledX = sectionEnabled.x;
+  const secEnabledY = sectionEnabled.y;
+  const secEnabledZ = sectionEnabled.z;
+  
+  const secLevelX = sectionLevel.x;
+  const secLevelY = sectionLevel.y;
+  const secLevelZ = sectionLevel.z;
+  
+  const secInvertX = sectionInvert.x;
+  const secInvertY = sectionInvert.y;
+  const secInvertZ = sectionInvert.z;
+
+  const activeModelFileName = model?.fileName;
+
+  useEffect(() => {
+    if (!roomId || !channelRef.current) return;
+    sendMeetingUpdate(fineTuning, sectionEnabled, sectionLevel, sectionInvert);
+  }, [
+    roomId,
+    rotX,
+    rotY,
+    rotZ,
+    scaleVal,
+    secEnabledX,
+    secEnabledY,
+    secEnabledZ,
+    secLevelX,
+    secLevelY,
+    secLevelZ,
+    secInvertX,
+    secInvertY,
+    secInvertZ,
+    activeModelFileName,
+    sendMeetingUpdate,
+    fineTuning,
+    sectionEnabled,
+    sectionLevel,
+    sectionInvert
+  ]);

  const handleFileUpload = useCallback(async (e: React.ChangeEvent<HTMLInputElement>) => {
    const file = e.target.files?.[0];
@@ -91,14 +255,39 @@ const Viewer = () => {
    }
  }, [addModel, models.length, maxModels]);

-  if (!model) return null;
+  // Removido o bloqueio para permitir carregamento de modelo na sala

-  const handleEnterXR = async () => {
+  const [enteringXR, setEnteringXR] = useState(false);
+
+  const handleEnterXR = useCallback(() => {
    if (!xrSupported) {
      toast.error("WebXR não é suportado neste navegador. Use o navegador do Meta Quest 3.");
      return;
    }
    navigate("/xr");
+  }, [xrSupported, navigate]);
+
+  const handleEnterMeeting = () => {
+    // Coleta o eixo habilitado de seção no Viewer
+    const enabledAxis = (['x', 'y', 'z'] as const).find(ax => sectionEnabled[ax]);
+    const isSectionActive = !!enabledAxis;
+    const sectionAxis = enabledAxis || 'y';
+    const sectionLevelVal = isSectionActive ? sectionLevel[sectionAxis] : 0.0;
+    const sectionInvertVal = isSectionActive ? sectionInvert[sectionAxis] : false;
+
+    // Salva o estado atual da peça
+    const initialMeetingState = {
+      rotation: [fineTuning.rotX, fineTuning.rotY, fineTuning.rotZ],
+      scale: fineTuning.scale,
+      sectionEnabled: isSectionActive,
+      sectionAxis,
+      sectionLevel: sectionLevelVal,
+      sectionInvert: sectionInvertVal
+    };
+
+    localStorage.setItem('tsxr_initial_meeting_state', JSON.stringify(initialMeetingState));
+    toast.success('Configurações da maquete salvas. Direcionando para a reunião...');
+    navigate('/meeting');
  };

  const canAddMore = models.length < maxModels;
@@ -110,43 +299,126 @@ const Viewer = () => {
        type="file"
        accept={ACCEPTED_EXTENSIONS}
        className="hidden"
+        title="Selecionar arquivo de maquete para upload"
+        placeholder="Upload de maquete"
        onChange={handleFileUpload}
      />

      {/* Top bar */}
      <header className="flex items-center justify-between border-b bg-card px-4 py-3">
        <div className="flex items-center gap-3">
-          <Button variant="ghost" size="icon" onClick={() => navigate("/")}>
-            <ArrowLeft className="h-5 w-5" />
+          <Button
+            variant="ghost"
+            size={roomId ? "default" : "icon"}
+            className={roomId ? "gap-1.5 px-3 text-xs font-mono h-9 hover:bg-slate-800" : ""}
+            onClick={() => roomId ? navigate(`/meeting/${roomId}`) : navigate("/")}
+          >
+            <ArrowLeft className="h-4 w-4" />
+            {roomId && "Voltar para Sala"}
          </Button>
          <div className="flex items-center gap-2">
            <Box className="h-5 w-5 text-primary" />
            <h1 className="font-mono text-sm font-semibold text-foreground">
-              TrackSteel<span className="text-primary">XR</span>
+              Steel<span className="text-primary">XR</span>
            </h1>
          </div>
        </div>

        <div className="flex items-center gap-2">
+          <Button
+            variant="outline"
+            className="gap-2 border-primary/30 hover:bg-primary/10 text-primary font-mono h-9"
+            onClick={handleEnterMeeting}
+          >
+            <Users className="h-4 w-4" />
+            Reunião Virtual
+          </Button>
          <ShareButton />
-          <Button className="gap-2 glow-primary" disabled={!xrSupported} onClick={handleEnterXR}>
-            <Glasses className="h-4 w-4" />
-            Entrar em Modo XR
+          <Button className="gap-2 glow-primary h-9" disabled={!xrSupported || enteringXR} onClick={handleEnterXR}>
+            {enteringXR ? <Loader2 className="h-4 w-4 animate-spin" /> : <Glasses className="h-4 w-4" />}
+            {enteringXR ? 'Iniciando AR…' : 'Entrar em Modo XR'}
          </Button>
        </div>
      </header>

      <div className="flex flex-1 overflow-hidden">
        {/* 3D Canvas with floating controls */}
-        <div className="relative flex-1">
+        <div className="relative flex-1 min-w-0" id="canvas-container">
          <ModelViewerCanvas />
-          <ViewCube />
-          <ViewerControls />
-          <SectionCutPanel />
+          {hoverIfcProps && (
+            <div 
+              className={`absolute left-4 z-40 w-72 rounded-xl border border-primary/20 bg-background/80 p-3.5 shadow-2xl backdrop-blur-md transition-all duration-300 pointer-events-none select-none font-mono text-[11px] ${
+                isFullscreen ? 'top-16' : 'top-4'
+              }`}
+            >
+              <div className="flex flex-col gap-2.5">
+                <div className="flex items-center gap-1.5 border-b border-primary/10 pb-1.5">
+                  <span className="h-1.5 w-1.5 rounded-full bg-primary animate-pulse" />
+                  <span className="font-semibold text-primary uppercase text-[9px] tracking-wider font-sans">Propriedades IFC</span>
+                </div>
+                
+                {Object.entries(hoverIfcProps).map(([key, value]) => {
+                  if (!value) return null;
+                  let displayKey = key;
+                  if (key === 'name') displayKey = 'Nome';
+                  else if (key === 'tag') displayKey = 'Marca';
+                  else if (key === 'material') displayKey = 'Material';
+                  else if (key === 'objectType') displayKey = 'Tipo';
+                  else if (key === 'description') displayKey = 'Descrição';
+                  
+                  return (
+                    <div key={key} className="flex flex-col gap-0.5">
+                      <span className="text-[8px] text-muted-foreground uppercase tracking-widest">{displayKey}</span>
+                      <span className="text-foreground font-semibold truncate text-[11px] max-w-[250px]" title={value}>{value}</span>
+                    </div>
+                  );
+                })}
+              </div>
+            </div>
+          )}
+          {isFullscreen ? (
+            <div className="absolute top-4 left-4 z-50 flex gap-2">
+              <Button
+                variant="outline"
+                className="gap-2 bg-background/80 border-primary/40 hover:bg-primary/20 text-foreground font-mono shadow-md backdrop-blur-sm h-9"
+                onClick={handleRecenter}
+              >
+                <Target className="h-4 w-4 text-primary animate-pulse" />
+                Centralizar
+              </Button>
+              <Button
+                variant="outline"
+                className="gap-2 bg-background/80 border-destructive/40 hover:bg-destructive/20 text-foreground font-mono shadow-md backdrop-blur-sm h-9"
+                onClick={exitFullscreen}
+              >
+                <ArrowLeft className="h-4 w-4 text-destructive" />
+                Retornar (ESC)
+              </Button>
+            </div>
+          ) : (
+            <>
+              {/* Botão de Expandir Sidebar (visível apenas se recolhido) */}
+              {!sidebarOpen && (
+                <Button
+                  variant="outline"
+                  size="icon"
+                  onClick={() => setSidebarOpen(true)}
+                  className="absolute right-4 top-[205px] z-30 h-8 w-8 rounded-md bg-background/80 border-primary/30 text-primary shadow-md hover:bg-primary/10"
+                  title="Expandir menu"
+                >
+                  <Menu className="h-4 w-4" />
+                </Button>
+              )}
+
+              <ViewCube />
+              <ViewerControls />
+              <SectionCutPanel />
+            </>
+          )}
        </div>

        {/* Side panel */}
-        <aside className="w-80 shrink-0 border-l bg-card">
+        <aside className={`transition-all duration-300 shrink-0 border-l bg-card flex flex-col ${sidebarOpen ? 'w-80 opacity-100' : 'w-0 opacity-0 pointer-events-none border-l-0 overflow-hidden'}`}>
          <ScrollArea className="h-full">
            <div className="p-4 space-y-5">
              <div>
@@ -154,6 +426,15 @@ const Viewer = () => {
                  <h2 className="font-mono text-xs font-semibold uppercase tracking-widest text-muted-foreground">
                    Cena · {models.length}/{maxModels} peças
                  </h2>
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    className="h-6 w-6 text-muted-foreground hover:text-foreground hover:bg-muted"
+                    onClick={() => setSidebarOpen(false)}
+                    title="Recolher menu"
+                  >
+                    <Menu className="h-4 w-4" />
+                  </Button>
                </div>
                <SceneModelList />
                <div className="mt-2 grid grid-cols-2 gap-1.5">
@@ -178,11 +459,17 @@ const Viewer = () => {
                <h2 className="mb-2 font-mono text-xs font-semibold uppercase tracking-widest text-muted-foreground">
                  Peça selecionada
                </h2>
-                <div className="space-y-3">
-                  <InfoItem icon={FileText} label="Arquivo" value={model.fileName} />
-                  <InfoItem icon={Box} label="Tamanho" value={`${(model.fileSize / (1024 * 1024)).toFixed(2)} MB`} />
-                  <InfoItem icon={Ruler} label="Escala" value={`${scaleRatio.label} (mm)`} />
-                </div>
+                {model ? (
+                  <div className="space-y-3">
+                    <InfoItem icon={FileText} label="Arquivo" value={model.fileName} />
+                    <InfoItem icon={Box} label="Tamanho" value={`${(model.fileSize / (1024 * 1024)).toFixed(2)} MB`} />
+                    <InfoItem icon={Ruler} label="Escala" value={`${scaleRatio.label} (mm)`} />
+                  </div>
+                ) : (
+                  <div className="rounded-lg border border-dashed border-muted p-4 text-center bg-muted/20">
+                    <p className="font-mono text-xs text-muted-foreground">Nenhuma peça ativa na cena</p>
+                  </div>
+                )}
              </div>

              <Separator />
@@ -214,7 +501,7 @@ const Viewer = () => {
  );
 };

-function InfoItem({ icon: Icon, label, value }: { icon: any; label: string; value: string }) {
+function InfoItem({ icon: Icon, label, value }: { icon: React.ComponentType<{ className?: string }>; label: string; value: string }) {
  return (
    <div className="flex items-start gap-3">
      <Icon className="mt-0.5 h-4 w-4 shrink-0 text-primary" />
@@ -78,7 +78,7 @@ export default function Watch() {
    <div className="min-h-screen bg-background flex flex-col">
      <header className="border-b bg-card/50 backdrop-blur px-4 py-3 flex items-center justify-between">
        <Link to="/" className="font-mono text-sm font-bold text-foreground">
-          TrackSteel<span className="text-primary">XR</span>
+          Steel<span className="text-primary">XR</span>
        </Link>
        <div className="flex items-center gap-3">
          <span className="font-mono text-[10px] text-muted-foreground">SALA</span>
@@ -159,7 +159,7 @@ export default function Watch() {
      <footer className="border-t bg-card/50 backdrop-blur px-4 py-2 flex items-center justify-center gap-2">
        <Eye className="h-3 w-3 text-muted-foreground" />
        <span className="font-mono text-[10px] text-muted-foreground">
-          Modo somente visualização · TrackSteelXR
+          Modo somente visualização · SteelXR
        </span>
      </footer>
    </div>
@@ -2,11 +2,12 @@ import { useEffect, useRef, useMemo, useCallback, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { Canvas, useFrame, useThree } from '@react-three/fiber';
 import { useGLTF, Grid, Html, Line, OrbitControls, Text } from '@react-three/drei';
-import { XR, createXRStore, useXR, XROrigin } from '@react-three/xr';
+import { XR, useXR, XROrigin, useXRHitTest } from '@react-three/xr';
+import { xrStore as store } from '@/stores/useXRStore';
 import * as THREE from 'three';
 import { useModelStore } from '@/stores/useModelStore';
 import { toast } from 'sonner';
-import { ArrowLeft, Download, QrCode, Crosshair, Home } from 'lucide-react';
+import { ArrowLeft, Download, QrCode, Crosshair, Home, Glasses, Loader2 } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import { generateMarkerDownloadURL } from '@/lib/trackingMarker';
 import { XRHud } from '@/components/XRHud';
@@ -22,10 +23,20 @@ import { ControllerLocomotion } from '@/components/three/ControllerLocomotion';
 import { useDevKit } from '@/devkit/useDevKit';
 import { DevPanel } from '@/devkit/DevPanel';
 import { FakeControllers } from '@/devkit/FakeControllers';
-import { VisibilityApplier } from '@/components/three/ModelViewer';
+import { VisibilityApplier, findElementRoot, getColorForMaterialName } from '@/components/three/ModelViewer';
 import { registerModelLocalGroup, unregisterModelLocalGroup } from '@/lib/modelTransforms';
 import { parseIFCtoThree } from '@/lib/convertIFC';
 import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js';
+import {
+  xrCalibration,
+  pushXRModelFaceNormal,
+  computeXRCalibrationQuaternion,
+  subscribeXRCalibration,
+  pushXRRealPoint,
+  pushXRVirtualPoint,
+  computeVirtRealTransform,
+  activeModelGroupRef,
+} from '@/components/three/xrCalibrationBus';

 // --- Diagnóstico XR ---
 console.log('[XR] Inicializando store...');
@@ -35,37 +46,7 @@ if (navigator.xr) {
  });
 }

-// Lê flags de feature WebXR do localStorage (default: todas ON).
-// O usuário liga/desliga pelo HUD AR (aba WebXR) para diagnosticar qual
-// feature ativa o grid de segurança do Quest. Mudanças exigem sair e re-entrar do AR.
-function loadXRFeatures() {
-  const defaults = {
-    handTracking: true, planeDetection: true, hitTest: true, domOverlay: true,
-    anchors: true, meshDetection: true, depthSensing: true, layers: true,
-    bodyTracking: true, lightEstimation: true,
-  };
-  try {
-    const raw = localStorage.getItem('xrFeatures');
-    if (raw) return { ...defaults, ...JSON.parse(raw) };
-  } catch {}
-  return defaults;
-}
-const _xrf = loadXRFeatures();
-console.log('[XR] Features:', _xrf);
-
-const store = createXRStore({
-  hand: { left: true, right: true },
-  controller: { left: true, right: true },
-  handTracking: _xrf.handTracking,
-  planeDetection: _xrf.planeDetection,
-  hitTest: _xrf.hitTest,
-  domOverlay: _xrf.domOverlay,
-  anchors: _xrf.anchors,
-  meshDetection: _xrf.meshDetection,
-  depthSensing: _xrf.depthSensing,
-  layers: _xrf.layers,
-  bodyTracking: _xrf.bodyTracking,
-});
+// `store` is now imported from `@/stores/useXRStore`

 // ─── XRModel ───────────────────────────────────────────
 function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').SceneModel }) {
@@ -100,8 +81,16 @@ function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').
  }, [sceneModel.url, sceneModel.fileName]);

  const ref = useRef<THREE.Group>(null);
+  const calGroupRef = useRef<THREE.Group>(null);
+  const localFrameRef = useRef<THREE.Group>(null);
+  const topGroupRef = useRef<THREE.Group>(null);
+
+  // Escuta mudanças de calibração para re-renderizar no AR
+  const [, setCalTick] = useState(0);
+  useEffect(() => subscribeXRCalibration(() => setCalTick(t => t + 1)), []);
+
  useEffect(() => {
-    const g = ref.current;
+    const g = localFrameRef.current;
    if (!g) return;
    registerModelLocalGroup(sceneModel.id, g);
    return () => unregisterModelLocalGroup(sceneModel.id, g);
@@ -115,6 +104,7 @@ function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').
  const edgeThresholdAngle = useModelStore((s) => s.edgeThresholdAngle);
  const checklist = useModelStore((s) => s.checklist);
  const measureMode = useModelStore((s) => s.measureMode);
+  const ifcColorMode = useModelStore((s) => s.ifcColorMode);

  const modelInfo = useMemo(() => {
    if (!scene) return { size: new THREE.Vector3(), center: new THREE.Vector3() };
@@ -170,7 +160,16 @@ function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').
              } else if (allApproved) {
                mat.color.setHSL(0.38, 0.7, 0.45);
              } else {
-                mat.color.set(sceneModel.color);
+                const root = findElementRoot(child);
+                const matName = root?.userData?.materialName;
+                const descName = root?.userData?.properties?.description || root?.userData?.description;
+                if (ifcColorMode === 'material' && matName) {
+                  mat.color.set(getColorForMaterialName(matName));
+                } else if (ifcColorMode === 'description' && descName) {
+                  mat.color.set(getColorForMaterialName(descName));
+                } else {
+                  mat.color.set(sceneModel.color);
+                }
              }
            }
            mat.needsUpdate = true;
@@ -192,7 +191,7 @@ function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').
        }
      }
    });
-  }, [scene, opacity, renderMode, checklist, wireframeColor, wireframeThickness, edgeThresholdAngle, sceneModel.color, measureMode]);
+  }, [scene, opacity, renderMode, checklist, wireframeColor, wireframeThickness, edgeThresholdAngle, sceneModel.color, measureMode, ifcColorMode]);

  const rotXRad = (fineTuning.rotX * Math.PI) / 180;
  const rotYRad = (fineTuning.rotY * Math.PI) / 180;
@@ -201,24 +200,124 @@ function XRModel({ sceneModel }: { sceneModel: import('@/stores/useModelStore').
  const scaleRatio = useModelStore((st) => st.scaleRatio);
  const renderFactor = scaleRatio?.factor ?? 1;

+  const rotationEuler = useMemo(() => {
+    return new THREE.Euler(rotXRad, rotYRad, rotZRad, 'YXZ');
+  }, [rotXRad, rotYRad, rotZRad]);
+
+  const calQuatArr = sceneModel.calibrationQuat;
+  const isCalibratingThis = xrCalibration.modelId === sceneModel.id && xrCalibration.step !== 'idle' && xrCalibration.step !== 'done';
+  const calQuat = useMemo(() => {
+    if (isCalibratingThis) return new THREE.Quaternion();
+    if (!calQuatArr) return new THREE.Quaternion();
+    return new THREE.Quaternion(calQuatArr[0], calQuatArr[1], calQuatArr[2], calQuatArr[3]);
+  }, [calQuatArr, isCalibratingThis]);
+
  if (!sceneModel.visible) return null;
  if (!scene) return null;

  return (
-    <group scale={[renderFactor, renderFactor, renderFactor]}>
-      <group
-        ref={ref}
-        userData={{ modelId: sceneModel.id }}
-        position={[
-          -modelInfo.center.x + fineTuning.posX,
-          -modelInfo.center.y + fineTuning.posY,
-          -modelInfo.center.z + fineTuning.posZ,
-        ]}
-        rotation={[rotXRad, rotYRad, rotZRad]}
-        scale={[s, s, s]}
-      >
-        <primitive object={scene} />
-        <XRLocalModelMeasurements modelId={sceneModel.id} />
+    <group
+      ref={topGroupRef}
+      scale={[renderFactor, renderFactor, renderFactor]}
+      onClick={(e) => {
+        e.stopPropagation();
+
+        // Calibração do Grid em AR (clonando os mesmos princípios do modo viewer)
+        const gridCalibMode = useModelStore.getState().gridCalibMode;
+        if (gridCalibMode && e.point) {
+          useModelStore.setState({
+            gridY: e.point.y - 0.001,
+            gridAutoFollow: false,
+            gridCalibMode: false,
+            showGrid: true,
+          });
+          return;
+        }
+
+        // Calibração XR da Peça: captura normal da face do modelo em espaço de mundo.
+        if (
+          xrCalibration.modelId === sceneModel.id &&
+          xrCalibration.alignType === 'cube' &&
+          (xrCalibration.step === 'await-model-1' || xrCalibration.step === 'await-model-2' || xrCalibration.step === 'await-model-3') &&
+          e.face && e.object
+        ) {
+          const n = e.face.normal.clone();
+          const nm = new THREE.Matrix3().getNormalMatrix(e.object.matrixWorld);
+          n.applyMatrix3(nm).normalize();
+          const wq = new THREE.Quaternion();
+          (calGroupRef.current ?? e.object).getWorldQuaternion(wq);
+          pushXRModelFaceNormal(n, wq);
+          
+          // Aplica/atualiza calibração se tivermos >= 2 pares
+          if (xrCalibration.pairs.length >= 2) {
+            const q = computeXRCalibrationQuaternion(xrCalibration.pairs);
+            if (q) {
+              useModelStore.getState().setCalibration(sceneModel.id, [q.x, q.y, q.z, q.w]);
+            }
+          }
+          return;
+        }
+
+        // Calibração Virt/Real da Peça: captura os pontos virtuais.
+        if (
+          xrCalibration.modelId === sceneModel.id &&
+          xrCalibration.alignType === 'virt-real' &&
+          (xrCalibration.step === 'await-virtual-1' || xrCalibration.step === 'await-virtual-2' || xrCalibration.step === 'await-virtual-3') &&
+          localFrameRef.current
+        ) {
+          const localPoint = localFrameRef.current.worldToLocal(e.point.clone());
+          const localPivotPoint = localPoint.clone().sub(modelInfo.center);
+          const stepNum = xrCalibration.step.endsWith('1') ? 1 : xrCalibration.step.endsWith('2') ? 2 : 3;
+
+          if (stepNum === 3 && xrCalibration.realPoints.length >= 3 && topGroupRef.current) {
+            const vPoints = [...xrCalibration.virtualPoints, localPivotPoint];
+            const realWorldPoints = xrCalibration.realPoints;
+            const parentPoints = realWorldPoints.map(rw => 
+              topGroupRef.current!.worldToLocal(rw.clone())
+            );
+
+            const res = computeVirtRealTransform(vPoints, parentPoints);
+            if (res) {
+              const { quaternion, position } = res;
+              useModelStore.getState().setCalibration(sceneModel.id, [quaternion.x, quaternion.y, quaternion.z, quaternion.w]);
+              useModelStore.getState().setFineTuning({
+                posX: position.x,
+                posY: position.y,
+                posZ: position.z,
+                rotX: 0,
+                rotY: 0,
+                rotZ: 0,
+              });
+              pushXRVirtualPoint(localPivotPoint);
+              toast.success("Peça virtual ajustada com sucesso na peça real!");
+            } else {
+              toast.error("Erro ao alinhar: pontos são colineares!");
+            }
+          } else {
+            pushXRVirtualPoint(localPivotPoint);
+            toast.success(`Ponto virtual ${stepNum} registrado!`);
+          }
+          return;
+        }
+      }}
+    >
+      {/* Translação */}
+      <group position={[fineTuning.posX, fineTuning.posY, fineTuning.posZ]}>
+        {/* Rotação e escala em volta do centro geométrico */}
+        <group
+          ref={ref}
+          rotation={rotationEuler}
+          scale={[s, s, s]}
+        >
+          {/* Rotação de calibração */}
+          <group ref={calGroupRef} quaternion={calQuat}>
+            {/* Sistema local do modelo com pivot no centro */}
+            <group ref={localFrameRef} position={[-modelInfo.center.x, -modelInfo.center.y, -modelInfo.center.z]} userData={{ modelId: sceneModel.id }}>
+              <primitive object={scene} />
+              <XRLocalModelMeasurements modelId={sceneModel.id} />
+            </group>
+          </group>
+        </group>
      </group>
    </group>
  );
@@ -237,6 +336,239 @@ function XRBackgroundModels() {
  );
 }

+/** Component that renders a laser from the camera (headset) to the grid landing target. */
+function XRGridLandingLaser({ reticlePos }: { reticlePos: THREE.Vector3 | null }) {
+  const { camera } = useThree();
+  const geom = useMemo(() => new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(), new THREE.Vector3(0, 0, -1)]), []);
+  const mat = useMemo(() => new THREE.LineBasicMaterial({ color: '#eab308', transparent: true, opacity: 0.6 }), []);
+  const lineRef = useRef<THREE.Line>(null);
+
+  useFrame(() => {
+    if (lineRef.current && reticlePos) {
+      const posAttr = geom.attributes.position as THREE.BufferAttribute;
+      // Laser origin slightly below eyes
+      posAttr.setXYZ(0, camera.position.x, camera.position.y - 0.05, camera.position.z);
+      posAttr.setXYZ(1, reticlePos.x, reticlePos.y, reticlePos.z);
+      posAttr.needsUpdate = true;
+      geom.computeBoundingSphere();
+      lineRef.current.visible = true;
+    } else if (lineRef.current) {
+      lineRef.current.visible = false;
+    }
+  });
+
+  return <primitive ref={lineRef} object={new THREE.Line(geom, mat)} />;
+}
+
+/** Handles physics surface hit-testing using WebXR for grid and active model landing. */
+function XRGridLandingHandler() {
+  const gridLandingMode = useModelStore((s) => s.gridLandingMode);
+  const gridY = useModelStore((s) => s.gridY);
+
+  const reticleRef = useRef<THREE.Group>(null);
+  const [reticlePos, setReticlePos] = useState<THREE.Vector3 | null>(null);
+
+  // Continuous hit-test from viewer center
+  useXRHitTest(
+    gridLandingMode
+      ? (results, getWorldMatrix) => {
+          if (results.length === 0) {
+            setReticlePos(null);
+            return;
+          }
+          const matrixHelper = new THREE.Matrix4();
+          getWorldMatrix(matrixHelper, results[0]);
+          const positionHelper = new THREE.Vector3().setFromMatrixPosition(matrixHelper);
+          setReticlePos(positionHelper.clone());
+        }
+      : undefined,
+    'viewer'
+  );
+
+  // Trata a confirmação (clique/gatilho no óculos ou controle)
+  const handleSelect = useCallback(() => {
+    if (!gridLandingMode || !reticlePos) return;
+
+    const targetY = reticlePos.y;
+    const deltaY = targetY - gridY;
+
+    // Desloca a peça ativa na mesma diferença (deltaY) para que ela "pouse junto"
+    const state = useModelStore.getState();
+    const activeModel = state.models.find(m => m.id === state.activeModelId);
+    if (activeModel) {
+      const ft = activeModel.fineTuning;
+      state.setFineTuning({
+        posY: ft.posY + deltaY,
+      });
+    }
+
+    // Atualiza o grid Y no store
+    useModelStore.setState({
+      gridY: targetY,
+      gridAutoFollow: false,
+      gridLandingMode: false,
+      showGrid: true,
+    });
+
+    toast.success("Grid e peça posicionados na superfície real!");
+  }, [gridLandingMode, reticlePos, gridY]);
+
+  // Atualiza posição da retícula a cada frame
+  useFrame(() => {
+    if (reticleRef.current) {
+      if (reticlePos && gridLandingMode) {
+        reticleRef.current.visible = true;
+        reticleRef.current.position.copy(reticlePos);
+      } else {
+        reticleRef.current.visible = false;
+      }
+    }
+  });
+
+  if (!gridLandingMode) return null;
+
+  return (
+    <>
+      <XRGridLandingLaser reticlePos={reticlePos} />
+      
+      {/* Retícula dourada premium */}
+      <group ref={reticleRef}>
+        <mesh onClick={handleSelect}>
+          <ringGeometry args={[0.08, 0.1, 32]} />
+          <meshBasicMaterial color="#eab308" side={THREE.DoubleSide} transparent opacity={0.8} />
+        </mesh>
+        <mesh rotation={[-Math.PI / 2, 0, 0]}>
+          <ringGeometry args={[0.005, 0.015, 16]} />
+          <meshBasicMaterial color="#eab308" side={THREE.DoubleSide} transparent opacity={0.6} />
+        </mesh>
+        <mesh>
+          <ringGeometry args={[0.11, 0.115, 64]} />
+          <meshBasicMaterial color="#eab308" side={THREE.DoubleSide} transparent opacity={0.3} />
+        </mesh>
+      </group>
+
+      {/* Plano invisível de click no fundo */}
+      <mesh
+        position={[0, 0, -2]}
+        onClick={handleSelect}
+        visible={false}
+      >
+        <planeGeometry args={[10, 10]} />
+        <meshBasicMaterial transparent opacity={0} />
+      </mesh>
+    </>
+  );
+}
+
+/** Component that renders a laser from the camera (headset) to the virtual/real calibration target. */
+function XRVirtRealCalibLaser({ reticlePos }: { reticlePos: THREE.Vector3 | null }) {
+  const { camera } = useThree();
+  const geom = useMemo(() => new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(), new THREE.Vector3(0, 0, -1)]), []);
+  const mat = useMemo(() => new THREE.LineBasicMaterial({ color: '#eab308', transparent: true, opacity: 0.8, depthTest: false }), []);
+  const lineRef = useRef<THREE.Line>(null);
+
+  useFrame(() => {
+    if (lineRef.current && reticlePos) {
+      const posAttr = geom.attributes.position as THREE.BufferAttribute;
+      // Laser origin slightly below eyes
+      posAttr.setXYZ(0, camera.position.x, camera.position.y - 0.05, camera.position.z);
+      posAttr.setXYZ(1, reticlePos.x, reticlePos.y, reticlePos.z);
+      posAttr.needsUpdate = true;
+      geom.computeBoundingSphere();
+      lineRef.current.visible = true;
+    } else if (lineRef.current) {
+      lineRef.current.visible = false;
+    }
+  });
+
+  return <primitive ref={lineRef} object={new THREE.Line(geom, mat)} />;
+}
+
+/** Handles physics surface hit-testing using WebXR for virtual-real piece alignment. */
+function XRVirtRealCalibHandler() {
+  const [, force] = useState(0);
+  useEffect(() => subscribeXRCalibration(() => force(t => t + 1)), []);
+
+  const isRealStep = xrCalibration.alignType === 'virt-real' && 
+                     (xrCalibration.step === 'await-real-1' || 
+                      xrCalibration.step === 'await-real-2' || 
+                      xrCalibration.step === 'await-real-3');
+
+  const reticleRef = useRef<THREE.Group>(null);
+  const [reticlePos, setReticlePos] = useState<THREE.Vector3 | null>(null);
+
+  // Continuous hit-test from viewer center
+  useXRHitTest(
+    isRealStep
+      ? (results, getWorldMatrix) => {
+          if (results.length === 0) {
+            setReticlePos(null);
+            return;
+          }
+          const matrixHelper = new THREE.Matrix4();
+          getWorldMatrix(matrixHelper, results[0]);
+          const positionHelper = new THREE.Vector3().setFromMatrixPosition(matrixHelper);
+          setReticlePos(positionHelper.clone());
+        }
+      : undefined,
+    'viewer'
+  );
+
+  const handleSelect = useCallback(() => {
+    if (!isRealStep || !reticlePos) return;
+
+    const stepNum = xrCalibration.step.endsWith('1') ? 1 : xrCalibration.step.endsWith('2') ? 2 : 3;
+    pushXRRealPoint(reticlePos.clone());
+    toast.success(`Ponto real ${stepNum} registrado!`);
+  }, [isRealStep, reticlePos]);
+
+  // Update reticle position
+  useFrame(() => {
+    if (reticleRef.current) {
+      if (reticlePos && isRealStep) {
+        reticleRef.current.visible = true;
+        reticleRef.current.position.copy(reticlePos);
+      } else {
+        reticleRef.current.visible = false;
+      }
+    }
+  });
+
+  if (!isRealStep) return null;
+
+  return (
+    <>
+      <XRVirtRealCalibLaser reticlePos={reticlePos} />
+      
+      {/* Golden reticle */}
+      <group ref={reticleRef}>
+        <mesh onClick={handleSelect}>
+          <ringGeometry args={[0.08, 0.1, 32]} />
+          <meshBasicMaterial color="#eab308" side={THREE.DoubleSide} transparent opacity={0.8} depthTest={false} />
+        </mesh>
+        <mesh rotation={[-Math.PI / 2, 0, 0]}>
+          <ringGeometry args={[0.005, 0.015, 16]} />
+          <meshBasicMaterial color="#eab308" side={THREE.DoubleSide} transparent opacity={0.6} depthTest={false} />
+        </mesh>
+        <mesh>
+          <ringGeometry args={[0.11, 0.115, 64]} />
+          <meshBasicMaterial color="#eab308" side={THREE.DoubleSide} transparent opacity={0.3} depthTest={false} />
+        </mesh>
+      </group>
+
+      {/* Tap plane to capture select events */}
+      <mesh
+        position={[0, 0, -2]}
+        onClick={handleSelect}
+        visible={false}
+      >
+        <planeGeometry args={[10, 10]} />
+        <meshBasicMaterial transparent opacity={0} />
+      </mesh>
+    </>
+  );
+}
+
 /** Renders the currently-active model (the one wrapped by grab/placement). */
 function XRActiveModel() {
  const models = useModelStore((s) => s.models);
@@ -273,8 +605,8 @@ function ControllerFineTuning({ freeMove }: { freeMove: boolean }) {
    for (const source of inputSources) {
      const gp = source.gamepad;
      if (!gp) continue;
-      const gripBtn = gp.buttons[2];
-      const trigBtn = gp.buttons[1];
+      const trigBtn = gp.buttons[0];
+      const gripBtn = gp.buttons[1];
      const gripVal = gripBtn ? (gripBtn.value || (gripBtn.pressed ? 1 : 0)) : 0;
      if (gripBtn?.pressed) gripHeld = true;
      if (gripVal > 0.3) anyGripHeld = true; // matches grab hysteresis OFF
@@ -569,24 +901,110 @@ function XRSnapHandler() {
  return null;
 }

+// ─── Desktop Aligner Fallback for Virt/Real Calibration ─
+function XRVirtRealDesktopAligner() {
+  const { gl, camera, scene } = useThree();
+  const [tick, setTick] = useState(0);
+
+  useEffect(() => {
+    return subscribeXRCalibration(() => setTick(t => t + 1));
+  }, []);
+
+  useEffect(() => {
+    const isAligning = xrCalibration.alignType === 'virt-real' && 
+                       (xrCalibration.step === 'await-real-1' || 
+                        xrCalibration.step === 'await-real-2' || 
+                        xrCalibration.step === 'await-real-3');
+    if (!isAligning) return;
+    if (gl.xr.isPresenting) return;
+
+    const mouse = new THREE.Vector2();
+    const raycaster = new THREE.Raycaster();
+
+    const onClick = (e: MouseEvent) => {
+      const rect = gl.domElement.getBoundingClientRect();
+      mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;
+      mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;
+      raycaster.setFromCamera(mouse, camera);
+      const intersects = raycaster.intersectObjects(scene.children, true);
+      
+      const activeModelId = useModelStore.getState().activeModelId;
+      const hit = intersects.find(i => {
+        if (i.object.userData?.__edgeLine) return false;
+        let cur: THREE.Object3D | null = i.object;
+        while (cur) {
+          if (cur.userData?.modelId === activeModelId) return false;
+          cur = cur.parent;
+        }
+        return true;
+      });
+
+      const point = hit ? hit.point.clone() : new THREE.Vector3(0, 0, 0);
+      pushXRRealPoint(point);
+      
+      const stepNum = xrCalibration.step.endsWith('1') ? 1 : xrCalibration.step.endsWith('2') ? 2 : 3;
+      toast.success(`Ponto real ${stepNum} registrado (Simulado)!`);
+    };
+
+    gl.domElement.addEventListener('click', onClick);
+    return () => gl.domElement.removeEventListener('click', onClick);
+  }, [gl, camera, scene, tick]);
+
+  return null;
+}
+
 // ─── XR Grid ───────────────────────────────────────────
 function XRGrid() {
  const showGrid = useModelStore((s) => s.showGrid);
  const gridY = useModelStore((s) => s.gridY);
+  const activeModelId = useModelStore((s) => s.activeModelId);
+  const activeModel = useModelStore((s) => s.models.find(m => m.id === activeModelId));
+  const groupRef = useRef<THREE.Group>(null);
+
+  useFrame(() => {
+    if (!showGrid || !groupRef.current) return;
+
+    let px = 0;
+    let pz = 0;
+    let ry = 0;
+
+    if (activeModelGroupRef.current) {
+      const g = activeModelGroupRef.current;
+      const wp = new THREE.Vector3();
+      g.getWorldPosition(wp);
+      px = wp.x;
+      pz = wp.z;
+
+      const wq = new THREE.Quaternion();
+      g.getWorldQuaternion(wq);
+      const euler = new THREE.Euler().setFromQuaternion(wq, 'YXZ');
+      ry = euler.y;
+    } else if (activeModel) {
+      px = activeModel.fineTuning.posX;
+      pz = activeModel.fineTuning.posZ;
+      ry = (activeModel.fineTuning.rotY * Math.PI) / 180;
+    }
+
+    groupRef.current.position.set(px, gridY, pz);
+    groupRef.current.rotation.set(0, ry, 0);
+  });
+
  if (!showGrid) return null;
+
  return (
-    <Grid
-      position={[0, gridY, 0]}
-      infiniteGrid
-      cellSize={0.01}
-      sectionSize={0.1}
-      cellThickness={0.5}
-      sectionThickness={1}
-      cellColor="#334155"
-      sectionColor="#475569"
-      fadeDistance={5}
-      fadeStrength={1}
-    />
+    <group ref={groupRef}>
+      <Grid
+        infiniteGrid
+        cellSize={0.01}
+        sectionSize={0.1}
+        cellThickness={0.5}
+        sectionThickness={1}
+        cellColor="#334155"
+        sectionColor="#475569"
+        fadeDistance={5}
+        fadeStrength={1}
+      />
+    </group>
  );
 }

@@ -644,33 +1062,54 @@ const XRSession = () => {
  const devkit = useDevKit();
  const [simXR, setSimXR] = useState(false);
  const effectiveInXR = inXR || simXR;
+  // Indica que enterAR() foi chamado mas a sessão ainda não começou — previne auto-return prematuro
+  const [isEnteringAR, setIsEnteringAR] = useState(false);
+  const [hasClickedEnter, setHasClickedEnter] = useState(false);

  useEffect(() => {
    if (!model) navigate('/');
  }, [model, navigate]);

+  // Detecta quando a sessão XR de fato começa
  useEffect(() => {
    const unsubscribe = store.subscribe((state) => {
      const session = state.session;
      if (session && !inXR) {
        console.log('[XR] ✅ Sessão AR ativa!');
        setInXR(true);
+        setIsEnteringAR(false);
        setAnchorMode('manual');
        toast.success('Sessão AR iniciada!');
        session.addEventListener('end', () => {
          console.log('[XR] ❌ Sessão AR encerrada');
          setInXR(false);
+          setHasClickedEnter(false);
+          navigate('/viewer');
        });
      }
    });
    return unsubscribe;
-  }, [inXR, setAnchorMode]);
+  }, [inXR, setAnchorMode, navigate]);
+
+  // Flag que indica que o usuário pediu para entrar no AR (enterAR chamado).
+  // Usada para bloquear o auto-return durante o onboarding do WebXR.
+  useEffect(() => {
+    // Se inXR virou true mas isEnteringAR é true, a sessão começou — limpa o flag
+    if (inXR && isEnteringAR) {
+      setIsEnteringAR(false);
+    }
+  }, [inXR, isEnteringAR]);
+
+  // Expõe setIsEnteringAR para o Viewer via window (permite marcar "entrando" antes de navegar)
+  useEffect(() => {
+    (window as unknown as { __setXrEntering?: (v: boolean) => void }).__setXrEntering = setIsEnteringAR;
+  }, []);

  const handleDownloadMarker = useCallback(async () => {
    const url = await generateMarkerDownloadURL();
    const a = document.createElement('a');
    a.href = url;
-    a.download = 'TrackSteelXR_Marker.png';
+    a.download = 'SteelXR_Marker.png';
    a.click();
    URL.revokeObjectURL(url);
    toast.success('Marcador baixado — Imprima em 15×15cm');
@@ -695,20 +1134,6 @@ const XRSession = () => {
        </div>

        <div className="flex items-center gap-2">
-          {!inXR && (
-            <>
-              <Button variant="outline" size="sm" className="gap-1.5" onClick={handleDownloadMarker}>
-                <Download className="h-3.5 w-3.5" />
-                <span className="font-mono text-xs">Marcador</span>
-              </Button>
-              <Button className="gap-2 glow-primary" onClick={() => {
-                console.log('[XR] Botão AR clicado');
-                store.enterAR().catch((e) => console.error('[XR] enterAR rejeitado:', e));
-              }}>
-                Iniciar Sessão AR
-              </Button>
-            </>
-          )}
          {inXR && (
            <span className="font-mono text-xs text-primary flex items-center gap-1.5">
              <span className="h-2 w-2 rounded-full bg-primary animate-pulse" />
@@ -734,7 +1159,10 @@ const XRSession = () => {
            <directionalLight position={[3, 5, 3]} intensity={1.2} />
            <directionalLight position={[-3, 3, -3]} intensity={0.4} />

-            <group ref={rigRef}>
+            <group ref={(el) => {
+              (rigRef as React.MutableRefObject<THREE.Group | null>).current = el;
+              useModelStore.getState().setXRRig(el);
+            }}>
              <XROrigin />
            </group>

@@ -778,7 +1206,8 @@ const XRSession = () => {
                <XRControllerMeasure />
                <ControllerLocomotion rigRef={rigRef} />
                <VisibilityApplier />
-                
+                <XRGridLandingHandler />
+                <XRVirtRealCalibHandler />

                {/* In-world HUD — visible inside passthrough where DOM overlays cannot reach */}
                <XRHudInWorld
@@ -833,15 +1262,93 @@ const XRSession = () => {
            )}

            <XRSnapHandler />
+            <XRVirtRealDesktopAligner />
            <XRGrid />
            <XRGridAutoFollower />
          </XR>
        </Canvas>

+        {/* Onboarding do AR */}
+        {!effectiveInXR && (
+          <div className="absolute inset-0 z-50 flex items-center justify-center bg-slate-950/85 backdrop-blur-md p-6">
+            <div className="w-full max-w-md border border-primary/20 bg-slate-900/95 rounded-2xl p-8 shadow-2xl text-center space-y-6 glow-primary">
+              <div className="flex justify-center">
+                <div className="h-16 w-16 items-center justify-center flex rounded-full bg-primary/10 border border-primary/30 animate-pulse">
+                  <Glasses className="h-8 w-8 text-primary" />
+                </div>
+              </div>
+              
+              <div className="space-y-2">
+                <h2 className="text-xl font-semibold tracking-tight text-foreground font-mono">
+                  Pronto para entrar no <span className="text-primary">Modo AR</span>?
+                </h2>
+                <p className="text-sm text-muted-foreground">
+                  Você está prestes a carregar o modelo em escala real 1:1 no seu ambiente físico.
+                </p>
+              </div>
+
+              {/* Informações da Peça */}
+              <div className="rounded-lg border border-border bg-slate-950/50 p-4 text-left space-y-2 font-mono text-xs">
+                <div className="flex justify-between">
+                  <span className="text-muted-foreground">Modelo Ativo:</span>
+                  <span className="text-foreground truncate max-w-[200px]" title={model.fileName}>{model.fileName}</span>
+                </div>
+                <div className="flex justify-between">
+                  <span className="text-muted-foreground">Tamanho:</span>
+                  <span className="text-foreground">{(model.fileSize / (1024 * 1024)).toFixed(2)} MB</span>
+                </div>
+              </div>
+
+              {/* Dicas Rápidas */}
+              <div className="text-left space-y-2.5 rounded-lg bg-primary/5 border border-primary/15 p-4 text-xs">
+                <h3 className="font-semibold text-primary font-mono flex items-center gap-1.5">
+                  💡 Guia de Controles Rápidos:
+                </h3>
+                <ul className="space-y-1.5 text-muted-foreground list-disc pl-4">
+                  <li><strong>Teletransporte:</strong> Thumbstick para frente. Solte para teleportar.</li>
+                  <li><strong>Escala Real (1:1):</strong> Aponte o feixe para a peça e teletransporte nela.</li>
+                  <li><strong>Mover Peça:</strong> Segure o Grip de qualquer controle para arrastar.</li>
+                  <li><strong>Girar/Zoom:</strong> Ambas as miras na peça, segure ambos os Grips e mova as mãos.</li>
+                  <li><strong>Menu do App:</strong> Botões A/B/X/Y abrem/fecham o menu flutuante.</li>
+                </ul>
+              </div>
+
+              {/* Ações */}
+              <div className="flex flex-col gap-3 pt-2">
+                <Button
+                  className="h-12 text-sm font-semibold glow-primary w-full gap-2 text-primary-foreground"
+                  disabled={hasClickedEnter}
+                  onClick={async () => {
+                    setHasClickedEnter(true);
+                    try {
+                      await store.enterAR();
+                    } catch (err) {
+                      console.error("[XR] Falha ao iniciar AR:", err);
+                      toast.error("Não foi possível iniciar o modo AR. Verifique se o Quest 3 está conectado.");
+                      setHasClickedEnter(false);
+                    }
+                  }}
+                >
+                  {hasClickedEnter ? <Loader2 className="h-5 w-5 animate-spin" /> : <Glasses className="h-5 w-5 animate-bounce" />}
+                  {hasClickedEnter ? 'Aguardando Permissão AR...' : 'Iniciar Visualização AR'}
+                </Button>
+                
+                <Button
+                  variant="outline"
+                  className="h-12 text-sm font-medium border-muted-foreground/20 text-muted-foreground hover:bg-slate-800 hover:text-foreground w-full"
+                  onClick={() => navigate('/viewer')}
+                >
+                  Voltar ao Viewer
+                </Button>
+              </div>
+            </div>
+          </div>
+        )}
+
        {/* Floating DOM HUD overlay — only visible OUTSIDE passthrough.
            Inside AR, the DOM is occluded by the headset compositor; the
            in-world XRHudInWorld replaces it. */}
-        <div style={{ display: inXR ? 'none' : 'contents' }}>
+        <div className={inXR ? 'hidden' : 'contents'}>
          <XRHud
            freeMove={freeMove}
            onToggleFreeMove={() => setFreeMove(!freeMove)}
@@ -857,7 +1364,7 @@ const XRSession = () => {
        {/* Hidden ShareButton instance — registers window.__trackSteelStartLive
            so the in-world Share tab can trigger broadcasts. Also keeps live
            state in sync with the in-XR HUD. */}
-        <div style={{ display: 'none' }}>
+        <div className="hidden">
          <ShareButton
            onHandleChange={(h) => setLiveCode(h?.code ?? null)}
            onViewerCountChange={setLiveViewers}
@@ -4,18 +4,18 @@ import { sendRemoteLog } from '@/lib/remoteLogger';

 // ── Persistência de placement (fineTuning + escala) e flags WebXR ─────
 const PLACEMENT_KEY = 'tsxr_placements_v1';
-const XRFEAT_KEY = 'xrFeatures';
+const XRFEAT_KEY = 'xrFeatures_v2';
 const CAMERA_MODE_KEY = 'tsxr_camera_mode_v1';

 function loadCameraMode(): 'ortho' | 'persp' {
  try {
    const raw = localStorage.getItem(CAMERA_MODE_KEY);
    if (raw === 'persp' || raw === 'ortho') return raw;
-  } catch {}
+  } catch (e) { /* ignore */ }
  return 'ortho';
 }
 function saveCameraMode(m: 'ortho' | 'persp') {
-  try { localStorage.setItem(CAMERA_MODE_KEY, m); } catch {}
+  try { localStorage.setItem(CAMERA_MODE_KEY, m); } catch (e) { /* ignore */ }
 }

 export interface XRFeatureFlags {
@@ -30,19 +30,25 @@ export interface XRFeatureFlags {
  bodyTracking: boolean;
 }
 const DEFAULT_XR_FEATURES: XRFeatureFlags = {
-  handTracking: true, planeDetection: true, hitTest: true, domOverlay: true,
-  anchors: true, meshDetection: true, depthSensing: true, layers: true,
-  bodyTracking: true,
+  handTracking: true,
+  planeDetection: true,
+  hitTest: true,
+  domOverlay: true,
+  anchors: true,
+  meshDetection: false,
+  depthSensing: false,
+  layers: false,
+  bodyTracking: false,
 };
 function loadXRFeatures(): XRFeatureFlags {
  try {
    const raw = localStorage.getItem(XRFEAT_KEY);
    if (raw) return { ...DEFAULT_XR_FEATURES, ...JSON.parse(raw) };
-  } catch {}
+  } catch (e) { /* ignore */ }
  return { ...DEFAULT_XR_FEATURES };
 }
 function saveXRFeatures(f: XRFeatureFlags) {
-  try { localStorage.setItem(XRFEAT_KEY, JSON.stringify(f)); } catch {}
+  try { localStorage.setItem(XRFEAT_KEY, JSON.stringify(f)); } catch (e) { /* ignore */ }
 }

 interface StoredPlacement { fineTuning: FineTuning; calibrationQuat?: [number, number, number, number] | null; }
@@ -50,7 +56,7 @@ function loadPlacements(): Record<string, StoredPlacement> {
  try {
    const raw = localStorage.getItem(PLACEMENT_KEY);
    if (raw) return JSON.parse(raw);
-  } catch {}
+  } catch (e) { /* ignore */ }
  return {};
 }
 function savePlacement(fileName: string, fineTuning: FineTuning, calibrationQuat?: [number, number, number, number] | null) {
@@ -62,7 +68,7 @@ function savePlacement(fileName: string, fineTuning: FineTuning, calibrationQuat
      calibrationQuat: calibrationQuat === undefined ? prev.calibrationQuat ?? null : calibrationQuat,
    };
    localStorage.setItem(PLACEMENT_KEY, JSON.stringify(all));
-  } catch {}
+  } catch (e) { /* ignore */ }
 }

 // ── Visibility (selection-based hide/isolate) persistence ────────────
@@ -72,7 +78,7 @@ function loadVisibilityMap(): Record<string, StoredVisibility> {
  try {
    const raw = localStorage.getItem(VISIBILITY_KEY);
    if (raw) return JSON.parse(raw);
-  } catch {}
+  } catch (e) { /* ignore */ }
  return {};
 }
 function saveVisibility(fileName: string, hidden: Set<string>, isolated: Set<string> | null) {
@@ -80,7 +86,7 @@ function saveVisibility(fileName: string, hidden: Set<string>, isolated: Set<str
    const all = loadVisibilityMap();
    all[fileName] = { hidden: [...hidden], isolated: isolated ? [...isolated] : null };
    localStorage.setItem(VISIBILITY_KEY, JSON.stringify(all));
-  } catch {}
+  } catch (e) { /* ignore */ }
 }
 function loadVisibility(fileName: string): { hidden: Set<string>; isolated: Set<string> | null } {
  const v = loadVisibilityMap()[fileName];
@@ -88,6 +94,36 @@ function loadVisibility(fileName: string): { hidden: Set<string>; isolated: Set<
  return { hidden: new Set(v.hidden ?? []), isolated: v.isolated ? new Set(v.isolated) : null };
 }

+const IFC_MAT_COLORS_KEY = 'tsxr_ifc_mat_colors_v1';
+const IFC_COLOR_MODE_KEY = 'tsxr_ifc_color_mode_v1';
+export type IFCColorMode = 'none' | 'material' | 'description';
+
+function loadIfcMaterialColors(): boolean {
+  try {
+    const raw = localStorage.getItem(IFC_MAT_COLORS_KEY);
+    return raw !== 'false';
+  } catch (e) { /* ignore */ }
+  return true;
+}
+function saveIfcMaterialColors(enabled: boolean) {
+  try { localStorage.setItem(IFC_MAT_COLORS_KEY, String(enabled)); } catch (e) { /* ignore */ }
+}
+
+function loadIfcColorMode(): IFCColorMode {
+  try {
+    const raw = localStorage.getItem(IFC_COLOR_MODE_KEY);
+    if (raw === 'none' || raw === 'material' || raw === 'description') {
+      return raw as IFCColorMode;
+    }
+    const legacy = localStorage.getItem(IFC_MAT_COLORS_KEY);
+    if (legacy === 'false') return 'none';
+  } catch (e) { /* ignore */ }
+  return 'material';
+}
+function saveIfcColorMode(mode: IFCColorMode) {
+  try { localStorage.setItem(IFC_COLOR_MODE_KEY, mode); } catch (e) { /* ignore */ }
+}
+


 export interface ScaleRatio {
@@ -260,6 +296,9 @@ interface ModelStore {
  /** When true, the next click on a model face sets grid Y to that point. */
  gridCalibMode: boolean;
  setGridCalibMode: (b: boolean) => void;
+  /** When true, the VR controller/headset hit-tests real world surfaces to place grid & models. */
+  gridLandingMode: boolean;
+  setGridLandingMode: (b: boolean) => void;

  /** Section/clipping cut tool (X/Y/Z axis-aligned planes in world space). */
  sectionEnabled: { x: boolean; y: boolean; z: boolean };
@@ -295,6 +334,8 @@ interface ModelStore {
  setMeasureMode: (on: boolean) => void;
  positionMode: boolean;
  setPositionMode: (on: boolean) => void;
+  walkMode: boolean;
+  setWalkMode: (on: boolean) => void;

  // ── Selection (hide/isolate/export elements) ────────────
  selectionMode: boolean;
@@ -334,6 +375,9 @@ interface ModelStore {
  hoverInfo: HoverInfo | null;
  setHoverInfo: (info: HoverInfo | null) => void;

+  hoverIfcProps: Record<string, string> | null;
+  setHoverIfcProps: (props: Record<string, string> | null) => void;
+
  screenshots: string[];
  addScreenshot: (dataUrl: string) => void;
  removeScreenshot: (index: number) => void;
@@ -343,6 +387,14 @@ interface ModelStore {
  xrFeatures: XRFeatureFlags;
  setXRFeature: (key: keyof XRFeatureFlags, value: boolean) => void;
  resetXRFeatures: () => void;
+
+  ifcMaterialColors: boolean;
+  setIfcMaterialColors: (enabled: boolean) => void;
+  ifcColorMode: IFCColorMode;
+  setIfcColorMode: (mode: IFCColorMode) => void;
+
+  xrRig: THREE.Group | null;
+  setXRRig: (rig: THREE.Group | null) => void;
 }

 /** Sync top-level legacy `model` / `fineTuning` from active SceneModel. */
@@ -355,6 +407,9 @@ function syncActive(state: Pick<ModelStore, 'models' | 'activeModelId'>): { mode
 }

 export const useModelStore = create<ModelStore>((set, get) => ({
+  xrRig: null,
+  setXRRig: (rig) => set({ xrRig: rig }),
+
  // ── Multi-model ─────────────
  models: [],
  activeModelId: null,
@@ -555,6 +610,8 @@ export const useModelStore = create<ModelStore>((set, get) => ({
  nudgeGridY: (delta) => set((s) => ({ gridY: s.gridY + delta, gridAutoFollow: false })),
  gridCalibMode: false,
  setGridCalibMode: (gridCalibMode) => set({ gridCalibMode }),
+  gridLandingMode: false,
+  setGridLandingMode: (gridLandingMode) => set({ gridLandingMode }),

  sectionEnabled: { x: false, y: false, z: false },
  sectionInvert: { x: false, y: false, z: false },
@@ -600,9 +657,14 @@ export const useModelStore = create<ModelStore>((set, get) => ({
  resetChecklist: () => set({ checklist: defaultChecklist.map(i => ({ ...i })) }),

  measureMode: false,
-  setMeasureMode: (measureMode) => set((s) => ({ measureMode, measurePoints: [], positionMode: measureMode ? false : s.positionMode, selectionMode: measureMode ? false : s.selectionMode })),
+  setMeasureMode: (measureMode) => set((s) => ({ measureMode, measurePoints: [], positionMode: measureMode ? false : s.positionMode, selectionMode: measureMode ? false : s.selectionMode, walkMode: false })),
  positionMode: false,
-  setPositionMode: (positionMode) => set((s) => ({ positionMode, measureMode: positionMode ? false : s.measureMode, selectionMode: positionMode ? false : s.selectionMode })),
+  setPositionMode: (positionMode) => set((s) => ({ positionMode, measureMode: positionMode ? false : s.measureMode, selectionMode: positionMode ? false : s.selectionMode, walkMode: false })),
+  walkMode: false,
+  setWalkMode: (walkMode) => {
+    set({ walkMode });
+    if (walkMode) set({ positionMode: false, measureMode: false, selectionMode: false, cameraMode: 'persp' });
+  },

  // ── Selection state ─────────────────────────────────────
  selectionMode: false,
@@ -749,6 +811,9 @@ export const useModelStore = create<ModelStore>((set, get) => ({
  hoverInfo: null,
  setHoverInfo: (hoverInfo) => set({ hoverInfo }),

+  hoverIfcProps: null,
+  setHoverIfcProps: (hoverIfcProps) => set({ hoverIfcProps }),
+
  screenshots: [],
  addScreenshot: (dataUrl) => set((state) => ({ screenshots: [...state.screenshots, dataUrl] })),
  removeScreenshot: (index) => set((state) => ({
@@ -767,4 +832,29 @@ export const useModelStore = create<ModelStore>((set, get) => ({
    saveXRFeatures(next);
    set({ xrFeatures: next });
  },
+  ifcMaterialColors: loadIfcMaterialColors(),
+  setIfcMaterialColors: (enabled: boolean) => {
+    saveIfcMaterialColors(enabled);
+    set((state) => {
+      const mode = enabled ? 'material' : 'none';
+      saveIfcColorMode(mode);
+      return { ifcMaterialColors: enabled, ifcColorMode: mode };
+    });
+  },
+  ifcColorMode: loadIfcColorMode(),
+  setIfcColorMode: (mode: IFCColorMode) => {
+    saveIfcColorMode(mode);
+    const enabled = mode === 'material';
+    saveIfcMaterialColors(enabled);
+    set({ ifcColorMode: mode, ifcMaterialColors: enabled });
+  },
 }));
+
+// Autodetecção global de suporte a WebXR
+if (typeof navigator !== 'undefined' && navigator.xr) {
+  navigator.xr.isSessionSupported('immersive-ar')
+    .then((supported) => useModelStore.getState().setXrSupported(supported))
+    .catch(() => useModelStore.getState().setXrSupported(false));
+} else {
+  useModelStore.getState().setXrSupported(false);
+}
@@ -0,0 +1,39 @@
+import { createXRStore } from '@react-three/xr';
+
+function loadXRFeatures() {
+  const defaults = {
+    handTracking: true,
+    planeDetection: true,
+    hitTest: true,
+    domOverlay: true,
+    anchors: true,
+    meshDetection: false,
+    depthSensing: false,
+    layers: false,
+    bodyTracking: false,
+    lightEstimation: false,
+  };
+  try {
+    const raw = localStorage.getItem('xrFeatures_v2');
+    if (raw) return { ...defaults, ...JSON.parse(raw) };
+  } catch (err) {
+    console.warn('[XR] Falha ao ler xrFeatures do localStorage:', err);
+  }
+  return defaults;
+}
+
+const _xrf = loadXRFeatures();
+
+export const xrStore = createXRStore({
+  hand: { left: true, right: true },
+  controller: { left: true, right: true },
+  handTracking: _xrf.handTracking,
+  planeDetection: _xrf.planeDetection,
+  hitTest: _xrf.hitTest,
+  domOverlay: _xrf.domOverlay,
+  anchors: _xrf.anchors,
+  meshDetection: _xrf.meshDetection,
+  depthSensing: _xrf.depthSensing,
+  layers: _xrf.layers,
+  bodyTracking: _xrf.bodyTracking,
+});
@@ -0,0 +1,127 @@
+# TrackSteelXR — Descritivo Publicitário para Landing Page
+
+---
+
+## Título de Alto Impacto
+
+**Inspeção de obras em tempo real com Realidade Aumentada: meça, valide e decida — sem sair do canteiro.**
+
+---
+
+## 3 Benefícios Principais
+
+### 1. Medições Precisas em AR com Snap Inteligente
+Vertex snap, detecção automática de arestas e furos em modelos IFC. O controlador XR identifica automaticamente vértices, arestas e furos — medições em milímetros reais sem trena ou cálculos manuais. Após 1 segundo de focalização, a medição é registrada automaticamente (dwell detection).
+
+### 2. Inspeção por Checklist Digital com Gravação de Voz
+Elimine planilhas de papel. Faça inspeções de qualidade diretamente no modelo 3D, com aprovação ou reprovação de cada item, anotações por texto e gravação de voz — tudo rastreável e auditável. Relatório PDF completo gerado em segundos.
+
+### 3. Cortes de Seção Interativos para Análise Estrutural
+Visualize o interior de estruturas metálicas com cortes dinâmicos nos eixos X, Y e Z — sem desmontar nada. Ideal para validar projetos complexos antes da montagem.
+
+---
+
+## Análise Resumida de Todos os Recursos
+
+### Visualização 3D e Realidade Aumentada
+
+- Renderização de modelos IFC nativamente via web-ifc (WASM)
+- Suporte a Meta Quest com controle por gatilho (trigger), botões A/B e snap toggle
+- Laser visual colorido que indica tipo de snap (verde=aresta, âmbar=furo, azul=vértice)
+- Modo Perspective e Orthographic comutável sem perda de enquadramento
+- Walk mode em primeira pessoa com teclado (WASD + Q/E para elevação)
+- Grid infinito auto-follow que se ajusta à posição Y da peça
+
+### Sistema de Medição
+
+- Snap inteligente a vértices, arestas e centros de furos circulares
+- Detecção automática de furos por circle-fit em geometria e por face
+- Hover label mostra diâmetro de furo ou comprimento de aresta em tempo real
+- Lock-on a alvos para medição contínua com interpolação suave
+- Dwell detection: 1 segundo de focalização registra medição automaticamente
+- Suporte a Undo/redo com teclas Z e Escape
+
+### Inspeção e Checklist
+
+- Checklist por item com status: Pendente, Aprovado, Reprovado
+- Anotações em texto livre por item
+- Gravação de voz por item (MediaRecorder API com áudio WebM)
+- Barra de progresso visual e contadores por status
+- Reset completo do checklist
+
+### Cortes de Seção
+
+- Cortes independentes nos eixos X, Y e Z
+- Slider de posicionamento com range dinâmico (baseado nos limites reais da peça)
+- Inversão de direção do corte por eixo
+- Botões de atalho: Min, Centro, Max
+- Opacidade configurável da janela de corte
+
+### Calibração e Posicionamento
+
+- Calibração em 3 pontos para alinhamento com referência real
+- Ajuste fino de posição (X, Y, Z) e rotação (X, Y, Z) por modelo
+- Suporte a múltiplos modelos simultâneos com controles independentes
+- Exportação de seleção para GLB
+
+### Relatórios e Compartilhamento
+
+- Relatório PDF completo com: info do modelo, ajustes finos, checklist, medições e screenshots
+- Screenshots da cena 3D com anotações
+- Compartilhamento via WebRTC (broadcast/source com signaling)
+- Logging remoto para diagnóstico
+
+---
+
+## Diferenciais do Mercado Concorrente
+
+| Concorrentes Tradicionais | TrackSteelXR |
+|---------------------------|--------------|
+| Software de escritório (AutoCAD, Revit) | Visualização **no canteiro** em AR |
+| Trena e planilha manual | **Snap inteligente** que identifica geometria automaticamente |
+| Relatório em papel ou Excel | **PDF automático** com evidências visuais |
+| Medição por estimativa | **Milímetros reais** com calibração |
+| Acesso restrito a profissionais | **XR controller** — mãos livres, mobilidade total |
+| Sem suporte a IFC | **web-ifc WASM** nativo para IFC direto |
+| Checklists em papel | **Checklist digital** com voz, texto e status |
+| Sem cortes dinâmicos | **Cortes interativos** X/Y/Z em tempo real |
+
+---
+
+## Inovações Tecnológicas
+
+1. **Pipeline IFC → WebGL nativo**: Parsing de arquivos IFC (IFC2x3, IFC4) via web-ifc (WASM), conversão em Three.js sem servidor — roda 100% no browser.
+
+2. **Smart Snap 3D com dwell detection**: O sistema detecta automaticamente vértices, arestas e furos circulares por raycasting + geometria. Após 1 segundo de focalização, a medição é registrada automaticamente — zero cliques desnecessários.
+
+3. **XR Controller com laser visual colorido**: Meta Quest integrado com laser que muda de cor conforme o tipo de snap (verde=aresta, âmbar=furo, azul=vértice), snap toggle por gatilho esquerdo, medição por gatilho direito, undo/clear por botões A/B.
+
+4. **Section cuts em tempo real com clipping planes**: Utiliza THREE.Plane clipping para cortes per-model, com range dinâmico calculado a partir dos bounds reais da peça.
+
+5. **Relatório PDF com evidências visuais**: jsPDF gera documento completo com screenshots da cena 3D, checklist com status coloridos e tabela de medições — em uma única ação.
+
+6. **WebRTC broadcast para colaboração remota**: Sinalização + broadcast/source para compartilhar a visão AR com outros participantes em tempo real.
+
+7. **Calibração por 3 pontos com quaternions**: Sistema de calibração que captura 3 pares de normais (world + local) e calcula o quaternion de alinhamento para posicionar o modelo no espaço real.
+
+8. **Walk mode com física de colisão simples**: Navegação em primeira pessoa com detecção de limites da peça para orientação no espaço 3D.
+
+---
+
+## Benefícios Incontestáveis
+
+- **Elimina retrabalho**: Validação dimensional no canteiro antes da montagem — erros corrigidos na hora, não no escritório.
+- **Precisão em milímetros**: Snap inteligente a geometria real do modelo IFC — não há estimativas, há dados.
+- **Rastreabilidade total**: Cada item do checklist tem status, nota, áudio e timestamp. Relatório PDF serve como documento de entrega ao cliente.
+- **Mobilidade sem precedentes**: Meta Quest + controllers = profissionais com as mãos livres para manusear a peça enquanto inspecionam.
+- **Zero dependência de servidor**: IFC roda no browser via WASM. Sem backend, sem instalação — um link funciona.
+- **Decisões em segundos**: Dwell detection registra medições automaticamente. O operador olha, focaliza 1 segundo, e o dado está salvo.
+- **Validação visual antes da compra**: Cliente vê o relatório com screenshots e sabe exatamente o que está comprando.
+
+---
+
+## Parágrafo Final — A Dor da Gestão
+
+Atrasos por erros de medição, retrabalho por falhas de comunicação e perdas por não conformidade são o pesadelo de qualquer gestão de produção metalmecânica ou obra civil. O **TrackSteelXR** coloca o modelo 3D IFC no canteiro — em Realidade Aumentada — para que engenheiros e gestores tomem decisões precisas no momento certo. **Menos retrabalho, mais produtividade, entregas dentro do prazo.** E um relatório PDF com evidências visuais que transforma inspeção em documento de entrega.
+
+**Seu próximo projeto já pode começar com a certeza de que cada peça foi validada — não por planilha, mas por realidade.**
@@ -1,5 +1,6 @@
 {
  "compilerOptions": {
+    "forceConsistentCasingInFileNames": true,
    "types": [
      "vitest/globals"
    ],
@@ -18,7 +19,7 @@
    "moduleDetection": "force",
    "noEmit": true,
    "jsx": "react-jsx",
-    "strict": false,
+    "strict": true,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "noImplicitAny": false,
@@ -9,6 +9,8 @@
    }
  ],
  "compilerOptions": {
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
    "paths": {
      "@/*": [
        "./src/*"
@@ -1,7 +1,8 @@
 {
  "compilerOptions": {
    "target": "ES2022",
-    "lib": ["ES2023"],
+    "forceConsistentCasingInFileNames": true,
+    "lib": ["ES2022"],
    "module": "ESNext",
    "skipLibCheck": true,

@@ -30,4 +30,14 @@ else
    echo -e "${YELLOW}ℹ️ Diretório não é um repositório Git. Pulando sincronização Git.${NC}"
 fi

-echo -e "${GREEN}🏁 Ciclo concluído com sucesso. O webhook do Coolify iniciará o deploy na VPS.${NC}\n"
+# 2. Acionar deploy diretamente no Coolify
+echo -e "${YELLOW}⚙️ Acionando deploy direto no Coolify...${NC}"
+DEPLOY_RESULT=$(docker exec coolify php artisan tinker --execute="print_r(queue_application_deployment(application: App\Models\Application::find(38), deployment_uuid: new Visus\Cuid2\Cuid2, force_rebuild: false));" 2>&1)
+
+if echo "$DEPLOY_RESULT" | grep -q "queued"; then
+    echo -e "${GREEN}✅ Deploy enfileirado com sucesso no Coolify!${NC}"
+else
+    echo -e "${RED}❌ Falha ao enfileirar deploy no Coolify. Detalhes: $DEPLOY_RESULT${NC}"
+fi
+
+echo -e "${GREEN}🏁 Ciclo concluído com sucesso.${NC}\n"
Author	SHA1	Message	Date
admtracksteel	7bd45e473d	🚀 Auto-deploy: melhoria no snap e medição AR em 11/06/2026 14:55:19	2026-06-11 14:55:19 +00:00
admtracksteel	fc10c77346	🚀 Auto-deploy: melhoria no snap e medição AR em 11/06/2026 14:07:02	2026-06-11 14:07:02 +00:00
admtracksteel	c62101d17b	🚀 Auto-deploy: melhoria no snap e medição AR em 10/06/2026 23:57:45	2026-06-10 23:57:45 +00:00
admtracksteel	9a3b59baf2	🚀 Auto-deploy: melhoria no snap e medição AR em 10/06/2026 20:53:22	2026-06-10 20:53:22 +00:00
admtracksteel	426bf13241	🚀 Auto-deploy: melhoria no snap e medição AR em 03/06/2026 10:31:54	2026-06-03 10:31:54 +00:00
admtracksteel	7f5b4427d7	🚀 Auto-deploy: melhoria no snap e medição AR em 03/06/2026 10:25:47	2026-06-03 10:25:47 +00:00
admtracksteel	97900b5ff7	🚀 Auto-deploy: melhoria no snap e medição AR em 03/06/2026 10:19:21	2026-06-03 10:19:21 +00:00
admtracksteel	6e80b23687	🚀 Auto-deploy: melhoria no snap e medição AR em 02/06/2026 21:42:49	2026-06-02 21:42:49 +00:00
admtracksteel	002682e6f3	🚀 Auto-deploy: melhoria no snap e medição AR em 02/06/2026 21:35:17	2026-06-02 21:35:17 +00:00
admtracksteel	230e373f8a	🚀 Auto-deploy: melhoria no snap e medição AR em 02/06/2026 21:33:41	2026-06-02 21:33:41 +00:00
admtracksteel	10f00e921d	🚀 Auto-deploy: melhoria no snap e medição AR em 02/06/2026 21:32:29	2026-06-02 21:32:29 +00:00
admtracksteel	11547f7bc7	🚀 Auto-deploy: melhoria no snap e medição AR em 02/06/2026 21:25:43	2026-06-02 21:25:43 +00:00
admtracksteel	0126d8d78c	🚀 Auto-deploy: melhoria no snap e medição AR em 01/06/2026 01:00:37	2026-06-01 01:00:37 +00:00
admtracksteel	b47fb872b5	🚀 Auto-deploy: melhoria no snap e medição AR em 01/06/2026 00:41:59	2026-06-01 00:41:59 +00:00
admtracksteel	ba33180a00	🚀 Auto-deploy: melhoria no snap e medição AR em 01/06/2026 00:12:12	2026-06-01 00:12:12 +00:00
admtracksteel	66e30b2609	🚀 Auto-deploy: melhoria no snap e medição AR em 01/06/2026 00:04:21	2026-06-01 00:04:21 +00:00
admtracksteel	dc64c83cc8	🚀 Auto-deploy: melhoria no snap e medição AR em 31/05/2026 23:55:14	2026-05-31 23:55:14 +00:00
admtracksteel	a2ac72cfe7	🚀 Auto-deploy: melhoria no snap e medição AR em 31/05/2026 23:46:46	2026-05-31 23:46:46 +00:00
admtracksteel	126bc6f80d	🚀 Auto-deploy: melhoria no snap e medição AR em 31/05/2026 23:34:10	2026-05-31 23:34:10 +00:00
admtracksteel	8154951fa5	🔧 Fix: modo AR travando em loading — timeout de segurança, feedback visual no botão e auto-return retardado - Viewer: loading state no botão 'Entrar em Modo XR' com Loader2 e texto 'Iniciando AR...' - Viewer: timeout de 15s que limpa o loading e mostra toast de erro se não entrar - Viewer: marca __setXrEntering(true) antes de navegar para bloquear auto-return prematuro - XRSession: delay do auto-return aumentado de 500ms para 2000ms - XRSession: novo flag isEnteringAR que previne navegação prematura para /viewer - XRSession: expõe __setXrEntering via window para Viewer setar o flag - Versão: v1.10 → v1.11 [31/05/2026 17:33:29]	2026-05-31 17:33:29 +00:00
admtracksteel	c798179560	🚀 Auto-deploy: melhoria no snap e medição AR em 31/05/2026 01:24:49	2026-05-31 01:24:49 +00:00
admtracksteel	43ce36e7a6	🚀 Auto-deploy: melhoria no snap e medição AR em 31/05/2026 01:18:12	2026-05-31 01:18:12 +00:00
admtracksteel	6372047b9d	🚀 Auto-deploy: melhoria no snap e medição AR em 31/05/2026 01:08:46	2026-05-31 01:08:46 +00:00
admtracksteel	37bac18534	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 14:52:07	2026-05-30 14:52:07 +00:00
admtracksteel	46ae916a4a	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 14:37:42	2026-05-30 14:37:42 +00:00
admtracksteel	7f2edbbb3c	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 14:03:35	2026-05-30 14:03:35 +00:00
admtracksteel	6954b9e30f	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 13:38:01	2026-05-30 13:38:01 +00:00
admtracksteel	ba2531b440	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 13:30:39	2026-05-30 13:30:39 +00:00
admtracksteel	a03f3e8ba8	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 12:32:57	2026-05-30 12:32:57 +00:00
admtracksteel	e4a9c8623a	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 12:24:45	2026-05-30 12:24:45 +00:00
admtracksteel	7489b611b0	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 11:48:45	2026-05-30 11:48:45 +00:00
admtracksteel	0ba00648e8	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 11:26:28	2026-05-30 11:26:28 +00:00
admtracksteel	4dbfb7f277	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 11:19:42	2026-05-30 11:19:42 +00:00
admtracksteel	451951b4ca	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 11:11:42	2026-05-30 11:11:42 +00:00
admtracksteel	966418659d	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:57:29	2026-05-30 10:57:29 +00:00
admtracksteel	c0c4ad6e11	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:56:12	2026-05-30 10:56:12 +00:00
admtracksteel	54a3f83375	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:42:44	2026-05-30 10:42:44 +00:00
admtracksteel	b6912bd070	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:30:57	2026-05-30 10:30:57 +00:00
admtracksteel	5a08868b83	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:28:12	2026-05-30 10:28:12 +00:00
admtracksteel	7ff4ed3176	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:13:44	2026-05-30 10:13:44 +00:00
admtracksteel	153c91dfc9	🚀 Auto-deploy: melhoria no snap e medição AR em 30/05/2026 10:10:48	2026-05-30 10:10:48 +00:00
admtracksteel	8348262d45	🚀 Auto-deploy: melhoria no snap e medição AR em 29/05/2026 21:04:55	2026-05-29 21:04:55 +00:00
admtracksteel	540eb2f31f	🚀 Auto-deploy: melhoria no snap e medição AR em 29/05/2026 20:54:50	2026-05-29 20:54:50 +00:00
admtracksteel	c820808184	🚀 Auto-deploy: melhoria no snap e medição AR em 29/05/2026 20:46:55	2026-05-29 20:46:55 +00:00
admtracksteel	0f017d0e4b	🚀 Auto-deploy: melhoria no snap e medição AR em 29/05/2026 20:32:41	2026-05-29 20:32:41 +00:00
admtracksteel	1e4bd78128	🚀 Auto-deploy: melhoria no snap e medição AR em 28/05/2026 21:57:52	2026-05-28 21:57:52 +00:00
admtracksteel	d47fb9dd37	🚀 Auto-deploy: melhoria no snap e medição AR em 28/05/2026 21:40:54	2026-05-28 21:40:54 +00:00
admtracksteel	b270ca0bfd	🚀 Auto-deploy: melhoria no snap e medição AR em 28/05/2026 21:29:49	2026-05-28 21:29:49 +00:00
admtracksteel	f36fd63bee	🚀 Auto-deploy: melhoria no snap e medição AR em 28/05/2026 21:17:57	2026-05-28 21:17:57 +00:00
admtracksteel	9b7f237afc	🚀 Auto-deploy: melhoria no snap e medição AR em 28/05/2026 21:16:09	2026-05-28 21:16:09 +00:00
admtracksteel	aff19146f0	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 18:53:07	2026-05-25 18:53:07 +00:00
admtracksteel	c924531f82	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 18:01:14	2026-05-25 18:01:14 +00:00
admtracksteel	30d5d7429f	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 17:59:04	2026-05-25 17:59:04 +00:00
admtracksteel	54d93c85d8	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 17:15:39	2026-05-25 17:15:39 +00:00
admtracksteel	a08ab50917	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 16:51:02	2026-05-25 16:51:02 +00:00
admtracksteel	03411d9224	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 16:24:11	2026-05-25 16:24:11 +00:00
admtracksteel	2e70d2e133	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 14:40:21	2026-05-25 14:40:21 +00:00
admtracksteel	54e44dd737	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 12:44:07	2026-05-25 12:44:07 +00:00
admtracksteel	70cdfac679	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 12:35:52	2026-05-25 12:35:52 +00:00
admtracksteel	24417cb8a7	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 12:34:30	2026-05-25 12:34:30 +00:00
admtracksteel	e8f4e2b18a	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 12:29:47	2026-05-25 12:29:47 +00:00
admtracksteel	f876e868d6	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:54:52	2026-05-25 11:54:52 +00:00
admtracksteel	6590cc17c2	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:49:06	2026-05-25 11:49:06 +00:00
admtracksteel	35881620b1	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:46:40	2026-05-25 11:46:40 +00:00
admtracksteel	b949a7c227	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:35:38	2026-05-25 11:35:38 +00:00
admtracksteel	00854f0255	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:17:05	2026-05-25 11:17:05 +00:00
admtracksteel	35ce901b74	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:15:46	2026-05-25 11:15:46 +00:00
admtracksteel	ac41cd99a0	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 11:09:55	2026-05-25 11:09:55 +00:00
admtracksteel	0baed4a871	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 01:28:33	2026-05-25 01:28:33 +00:00
admtracksteel	61591dc84e	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 01:16:07	2026-05-25 01:16:07 +00:00
admtracksteel	cf4a317439	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 01:15:05	2026-05-25 01:15:05 +00:00
admtracksteel	408eba84e0	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 01:10:53	2026-05-25 01:10:53 +00:00
admtracksteel	c16beadb32	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:56:37	2026-05-25 00:56:37 +00:00
admtracksteel	7dff9bbeff	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:50:27	2026-05-25 00:50:27 +00:00
admtracksteel	fffdd020f3	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:48:57	2026-05-25 00:48:57 +00:00
admtracksteel	887e172526	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:47:27	2026-05-25 00:47:27 +00:00
admtracksteel	6ef7c3ae8f	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:41:06	2026-05-25 00:41:06 +00:00
admtracksteel	883f022883	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:40:00	2026-05-25 00:40:00 +00:00
admtracksteel	2e7402691a	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:34:30	2026-05-25 00:34:30 +00:00
admtracksteel	3c903c1ff1	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:21:23	2026-05-25 00:21:23 +00:00
admtracksteel	e390fd0f59	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:19:23	2026-05-25 00:19:23 +00:00
admtracksteel	f38bf58bd2	🚀 Auto-deploy: melhoria no snap e medição AR em 25/05/2026 00:07:59	2026-05-25 00:07:59 +00:00
admtracksteel	de8558b81c	🚀 Auto-deploy: melhoria no snap e medição AR em 24/05/2026 23:58:44	2026-05-24 23:58:44 +00:00
admtracksteel	c953db0b26	🚀 Auto-deploy: melhoria no snap e medição AR em 24/05/2026 23:31:10	2026-05-24 23:31:10 +00:00