Official API reference for Three.js — the most popular JavaScript 3D library (WebGL/WebGPU).
CRITICAL: grep references/ for the class name before answering. Files are named by class (e.g., PerspectiveCamera.md, MeshStandardMaterial.md).
Reference Index (769 docs)
Each file documents one Three.js class with inheritance chain, constructor, properties, and methods.
Core
Scene Object3D Raycaster Clock EventDispatcher BufferGeometry BufferAttribute InterleavedBufferAttribute
Cameras
PerspectiveCamera OrthographicCamera ArrayCamera CubeCamera StereoCamera
Renderers
WebGLRenderer WebGPURenderer WebGLRenderTarget WebGLCubeRenderTarget
Geometries
BoxGeometry SphereGeometry PlaneGeometry CylinderGeometry TorusGeometry TorusKnotGeometry CircleGeometry RingGeometry CapsuleGeometry ExtrudeGeometry LatheGeometry ShapeGeometry TubeGeometry EdgesGeometry WireframeGeometry
Materials
MeshBasicMaterial MeshStandardMaterial MeshPhysicalMaterial MeshPhongMaterial MeshLambertMaterial MeshToonMaterial MeshNormalMaterial MeshDepthMaterial ShaderMaterial RawShaderMaterial PointsMaterial SpriteMaterial LineBasicMaterial LineDashedMaterial
Lights & Shadows
AmbientLight DirectionalLight PointLight SpotLight HemisphereLight RectAreaLight LightProbe DirectionalLightShadow PointLightShadow SpotLightShadow
Animation
AnimationMixer AnimationClip AnimationAction AnimationObjectGroup AnimationUtils KeyframeTrack PropertyBinding PropertyMixer
Loaders
GLTFLoader DRACOLoader KTX2Loader OBJLoader FBXLoader PLYLoader STLLoader ColladaLoader TextureLoader CubeTextureLoader ImageLoader FileLoader LoadingManager
Controls
OrbitControls MapControls TrackballControls FlyControls FirstPersonControls PointerLockControls ArcballControls TransformControls DragControls
Math
Vector2 Vector3 Vector4 Matrix3 Matrix4 Quaternion Euler Color Box2 Box3 Sphere Ray Plane Frustum Triangle MathUtils Interpolant SphericalHarmonics3
Helpers
AxesHelper BoxHelper GridHelper ArrowHelper CameraHelper DirectionalLightHelper PointLightHelper SpotLightHelper SkeletonHelper
Postprocessing
EffectComposer RenderPass UnrealBloomPass SSAOPass SMAAPass OutlinePass AfterimagePass BokehPass FilmPass GlitchPass
TSL Shader Nodes
ShaderNode NodeMaterial MeshStandardNodeMaterial — plus 100+ node types for the Three.js Shading Language