This skill should be used when the user asks to "build a 3D hero section or WebGL background", "animate a Three.js scene", "play or crossfade GLTF animation clips", "move/lerp the camera or link it to scroll", "render thousands of objects with InstancedMesh", "set up React Three Fiber (R3F) motion", "add bloom/DOF post-processing", or "keep a Three.js/R3F animation smooth and leak-free (dispose geometries/materials/textures, free GPU memory on unmount)".
