Initial commit: Lucidia Metaverse

Complete 3D metaverse platform with:
- Three.js 3D rendering
- Cannon.js physics engine
- Pointer lock controls
- Procedural cityscape
- Floating islands
- Portal system
- Particle effects
- WebXR/VR support ready
- Multiplayer ready (Socket.io)

Features:
- First-person controls (WASD + mouse)
- Jump and run mechanics
- Chat system
- Real-time HUD
- Loading screen
- Responsive design

Built with Vite for fast builds and hot reload.

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/three/examples/jsm/nodes/accessors/PointUVNode.js

@@ -0,0 +1,26 @@
+import Node, { addNodeClass } from '../core/Node.js';
+import { nodeImmutable } from '../shadernode/ShaderNode.js';
+
+class PointUVNode extends Node {
+
+	constructor() {
+
+		super( 'vec2' );
+
+		this.isPointUVNode = true;
+
+	}
+
+	generate( /*builder*/ ) {
+
+		return 'vec2( gl_PointCoord.x, 1.0 - gl_PointCoord.y )';
+
+	}
+
+}
+
+export default PointUVNode;
+
+export const pointUV = nodeImmutable( PointUVNode );
+
+addNodeClass( 'PointUVNode', PointUVNode );