diff --git a/src/components/ViewCube.tsx b/src/components/ViewCube.tsx
new file mode 100644
index 0000000..44a3074
--- /dev/null
+++ b/src/components/ViewCube.tsx
@@ -0,0 +1,149 @@
+import { useRef, useMemo, useEffect, useState } from 'react';
+import { Canvas, useFrame, useThree, ThreeEvent } from '@react-three/fiber';
+import * as THREE from 'three';
+import { mainCameraRef, mainControlsRef, requestView } from './three/viewCubeBus';
+
+/** Builds a square canvas texture with a label centered on it. */
+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')!;
+  // Background
+  const grad = ctx.createLinearGradient(0, 0, 0, size);
+  grad.addColorStop(0, accent ? '#1a2742' : '#101725');
+  grad.addColorStop(1, accent ? '#0c1424' : '#070b14');
+  ctx.fillStyle = grad;
+  ctx.fillRect(0, 0, size, size);
+  // Border
+  ctx.strokeStyle = '#00f3ff';
+  ctx.lineWidth = 6;
+  ctx.strokeRect(3, 3, size - 6, size - 6);
+  // Label
+  ctx.fillStyle = '#e6faff';
+  ctx.font = '700 56px JetBrains Mono, ui-monospace, monospace';
+  ctx.textAlign = 'center';
+  ctx.textBaseline = 'middle';
+  ctx.shadowColor = '#00f3ff';
+  ctx.shadowBlur = 18;
+  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] }[] = [
+  // BoxGeometry material order: +X, -X, +Y, -Y, +Z, -Z
+  { 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] },
+];
+
+function CubeMesh() {
+  const meshRef = useRef<THREE.Mesh>(null);
+  const { camera: localCam } = useThree();
+  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]);
+
+  // Apply hover tint
+  useEffect(() => {
+    materials.forEach((m, i) => {
+      m.map = i === hover ? m.userData.hoverTex : m.userData.baseTex;
+      m.needsUpdate = true;
+    });
+  }, [hover, materials]);
+
+  // Mirror main camera orientation each frame
+  useFrame(() => {
+    const main = mainCameraRef.current;
+    const controls = mainControlsRef.current;
+    if (!main) return;
+    const target: THREE.Vector3 = controls?.target ?? new THREE.Vector3();
+    const dir = new THREE.Vector3().subVectors(main.position, target).normalize();
+    // Place local cam along same direction at fixed distance
+    localCam.position.copy(dir.multiplyScalar(3));
+    localCam.up.copy(main.up);
+    localCam.lookAt(0, 0, 0);
+  });
+
+  const onClick = (e: ThreeEvent<MouseEvent>) => {
+    e.stopPropagation();
+    const idx = e.face?.materialIndex;
+    if (idx == null) return;
+    const def = FACE_DEFS[idx];
+    if (!def) return;
+    requestView(new THREE.Vector3(...def.dir));
+  };
+
+  return (
+    <mesh
+      ref={meshRef}
+      material={materials}
+      onClick={onClick}
+      onPointerMove={(e) => {
+        e.stopPropagation();
+        const idx = e.face?.materialIndex ?? null;
+        setHover(idx);
+      }}
+      onPointerOut={() => setHover(null)}
+    >
+      <boxGeometry args={[1.4, 1.4, 1.4]} />
+    </mesh>
+  );
+}
+
+/** Tiny axis tripod next to the cube to reinforce the UCS reading. */
+function AxisTripod() {
+  return (
+    <group position={[-1.2, -1.2, 0]}>
+      <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>
+  );
+}
+
+export function ViewCube() {
+  return (
+    <div
+      className="absolute right-3 top-3 z-20 h-[120px] w-[120px] rounded-md border border-primary/30 bg-background/40 backdrop-blur-sm shadow-lg"
+      style={{ pointerEvents: 'auto' }}
+      title="Cubo de vistas — clique numa face para girar"
+    >
+      <Canvas
+        camera={{ position: [2, 2, 2], fov: 35, near: 0.1, far: 50 }}
+        gl={{ antialias: true, alpha: true }}
+        dpr={[1, 2]}
+      >
+        <ambientLight intensity={1} />
+        <CubeMesh />
+        <AxisTripod />
+      </Canvas>
+    </div>
+  );
+}