first commit

public/sdk/three/jsm/environments/DebugEnvironment.js

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+import {
+	BackSide,
+	BoxGeometry,
+	Mesh,
+	MeshLambertMaterial,
+	MeshStandardMaterial,
+	PointLight,
+	Scene,
+} from 'three';
+
+class DebugEnvironment extends Scene {
+
+	constructor() {
+
+		super();
+
+		const geometry = new BoxGeometry();
+		geometry.deleteAttribute( 'uv' );
+		const roomMaterial = new MeshStandardMaterial( { metalness: 0, side: BackSide } );
+		const room = new Mesh( geometry, roomMaterial );
+		room.scale.setScalar( 10 );
+		this.add( room );
+
+		const mainLight = new PointLight( 0xffffff, 50, 0, 2 );
+		this.add( mainLight );
+
+		const material1 = new MeshLambertMaterial( { color: 0xff0000, emissive: 0xffffff, emissiveIntensity: 10 } );
+
+		const light1 = new Mesh( geometry, material1 );
+		light1.position.set( - 5, 2, 0 );
+		light1.scale.set( 0.1, 1, 1 );
+		this.add( light1 );
+
+		const material2 = new MeshLambertMaterial( { color: 0x00ff00, emissive: 0xffffff, emissiveIntensity: 10 } );
+
+		const light2 = new Mesh( geometry, material2 );
+		light2.position.set( 0, 5, 0 );
+		light2.scale.set( 1, 0.1, 1 );
+		this.add( light2 );
+
+		const material3 = new MeshLambertMaterial( { color: 0x0000ff, emissive: 0xffffff, emissiveIntensity: 10 } );
+
+		const light3 = new Mesh( geometry, material3 );
+		light3.position.set( 2, 1, 5 );
+		light3.scale.set( 1.5, 2, 0.1 );
+		this.add( light3 );
+
+	}
+
+}
+
+export { DebugEnvironment };