Initial project import

node_modules/three-stdlib/objects/ShadowMesh.d.ts

@@ -0,0 +1,10 @@
+import { Mesh, Plane, Vector4, Matrix4, MeshBasicMaterial, BufferGeometry } from 'three'
+
+export class ShadowMesh extends Mesh<BufferGeometry, MeshBasicMaterial> {
+  readonly isShadowMesh: true
+  meshMatrix: Matrix4
+
+  constructor(mesh: Mesh)
+
+  update(plane: Plane, lightPosition4D: Vector4): void
+}