feat: optimize rendering

packages/website/src/components/SmartCanvas.tsx

@@ -0,0 +1,20 @@
+import { Canvas, type CanvasProps } from '@react-three/fiber';
+import { forwardRef, useImperativeHandle, useRef } from 'react';
+import { useOnScreen } from '../hooks/useOnScreen';
+
+export const SmartCanvas = forwardRef<HTMLCanvasElement, CanvasProps>(
+  (props, ref) => {
+    const canvas = useRef<HTMLCanvasElement>(null);
+    const onScreen = useOnScreen(canvas);
+
+    useImperativeHandle(ref, () => canvas.current!, []);
+
+    return (
+      <Canvas
+        frameloop={onScreen ? 'demand' : 'never'}
+        ref={canvas}
+        {...props}
+      />
+    );
+  },
+);