Changes

src/components/ScreenshotGallery.tsx

@@ -0,0 +1,49 @@
+import { Camera, X, Download } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import { useModelStore } from '@/stores/useModelStore';
+
+export function ScreenshotGallery() {
+  const { screenshots, removeScreenshot, clearScreenshots } = useModelStore();
+
+  if (screenshots.length === 0) return null;
+
+  return (
+    <div className="space-y-2">
+      <div className="flex items-center justify-between">
+        <h3 className="font-mono text-xs font-semibold uppercase tracking-widest text-muted-foreground">
+          Capturas ({screenshots.length})
+        </h3>
+        <Button variant="ghost" size="sm" className="h-6 text-[10px]" onClick={clearScreenshots}>
+          Limpar
+        </Button>
+      </div>
+      <div className="grid grid-cols-2 gap-2">
+        {screenshots.map((src, i) => (
+          <div key={i} className="group relative rounded-lg border overflow-hidden bg-muted/30">
+            <img src={src} alt={`Captura ${i + 1}`} className="w-full aspect-video object-cover" />
+            <div className="absolute top-1 right-1 flex gap-1 opacity-0 group-hover:opacity-100 transition-opacity">
+              <a
+                href={src}
+                download={`TrackkSteelXR_capture_${i + 1}.png`}
+                className="h-6 w-6 rounded bg-card/90 flex items-center justify-center"
+              >
+                <Download className="h-3 w-3 text-primary" />
+              </a>
+              <button
+                onClick={() => removeScreenshot(i)}
+                className="h-6 w-6 rounded bg-card/90 flex items-center justify-center"
+              >
+                <X className="h-3 w-3 text-destructive" />
+              </button>
+            </div>
+            <div className="absolute bottom-1 left-1">
+              <span className="font-mono text-[9px] bg-card/80 rounded px-1 py-0.5 text-muted-foreground">
+                #{i + 1}
+              </span>
+            </div>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}

src/components/ViewerControls.tsx

@@ -1,10 +1,23 @@
-import { Eye, Grid3X3, Ruler, Trash2 } from 'lucide-react';
+import { Eye, Grid3X3, Ruler, Trash2, Camera } from 'lucide-react';
 import { Slider } from '@/components/ui/slider';
 import { Button } from '@/components/ui/button';
 import { useModelStore } from '@/stores/useModelStore';
+import { useCallback } from 'react';
+import { toast } from 'sonner';
 
 export function ViewerControls() {
-  const { opacity, setOpacity, renderMode, setRenderMode, measureMode, setMeasureMode, measurements, clearMeasurements, measurePoints } = useModelStore();
+  const { opacity, setOpacity, renderMode, setRenderMode, measureMode, setMeasureMode, measurements, clearMeasurements, measurePoints, addScreenshot } = useModelStore();
+
+  const handleScreenshot = useCallback(() => {
+    const canvas = document.querySelector('canvas');
+    if (!canvas) {
+      toast.error('Canvas não encontrado');
+      return;
+    }
+    const dataUrl = canvas.toDataURL('image/png');
+    addScreenshot(dataUrl);
+    toast.success('Screenshot capturado!');
+  }, [addScreenshot]);
 
   return (
     <div className="absolute bottom-4 left-4 z-10 flex items-end gap-3">
@@ -69,6 +82,17 @@ export function ViewerControls() {
           </Button>
         )}
       </div>
+
+      {/* Screenshot */}
+      <Button
+        variant="outline"
+        size="sm"
+        className="gap-2 h-9"
+        onClick={handleScreenshot}
+      >
+        <Camera className="h-3.5 w-3.5" />
+        <span className="font-mono text-xs">Capturar</span>
+      </Button>
     </div>
   );
 }

src/components/three/ModelViewer.tsx

@@ -192,7 +192,7 @@ export function ModelViewerCanvas({ url }: ModelViewerProps) {
   return (
     <Canvas
       camera={{ position: [2, 2, 2], fov: 50, near: 0.001, far: 1000 }}
-      gl={{ antialias: true, alpha: true, powerPreference: 'high-performance' }}
+      gl={{ antialias: true, alpha: true, powerPreference: 'high-performance', preserveDrawingBuffer: true }}
       frameloop="demand"
       className="!bg-background"
       onCreated={({ gl, invalidate }) => {