添加关照、全局等高线、修改图层问题

static/sdk/three/jsm/webxr/XRPlanes.js

@@ -0,0 +1,100 @@
+import {
+	BoxGeometry,
+	Matrix4,
+	Mesh,
+	MeshBasicMaterial,
+	Object3D
+} from 'three';
+
+class XRPlanes extends Object3D {
+
+	constructor( renderer ) {
+
+		super();
+
+		const matrix = new Matrix4();
+
+		const currentPlanes = new Map();
+
+		const xr = renderer.xr;
+
+		xr.addEventListener( 'planesdetected', event => {
+
+			const frame = event.data;
+			const planes = frame.detectedPlanes;
+
+			const referenceSpace = xr.getReferenceSpace();
+
+			let planeschanged = false;
+
+			for ( const [ plane, mesh ] of currentPlanes ) {
+
+				if ( planes.has( plane ) === false ) {
+
+					mesh.geometry.dispose();
+					mesh.material.dispose();
+					this.remove( mesh );
+
+					currentPlanes.delete( plane );
+
+					planeschanged = true;
+
+				}
+
+			}
+
+			for ( const plane of planes ) {
+
+				if ( currentPlanes.has( plane ) === false ) {
+
+					const pose = frame.getPose( plane.planeSpace, referenceSpace );
+					matrix.fromArray( pose.transform.matrix );
+
+					const polygon = plane.polygon;
+
+					let minX = Number.MAX_SAFE_INTEGER;
+					let maxX = Number.MIN_SAFE_INTEGER;
+					let minZ = Number.MAX_SAFE_INTEGER;
+					let maxZ = Number.MIN_SAFE_INTEGER;
+
+					for ( const point of polygon ) {
+
+						minX = Math.min( minX, point.x );
+						maxX = Math.max( maxX, point.x );
+						minZ = Math.min( minZ, point.z );
+						maxZ = Math.max( maxZ, point.z );
+
+					}
+
+					const width = maxX - minX;
+					const height = maxZ - minZ;
+
+					const geometry = new BoxGeometry( width, 0.01, height );
+					const material = new MeshBasicMaterial( { color: 0xffffff * Math.random() } );
+
+					const mesh = new Mesh( geometry, material );
+					mesh.position.setFromMatrixPosition( matrix );
+					mesh.quaternion.setFromRotationMatrix( matrix );
+					this.add( mesh );
+
+					currentPlanes.set( plane, mesh );
+
+					planeschanged = true;
+
+				}
+
+			}
+
+			if ( planeschanged ) {
+
+				this.dispatchEvent( { type: 'planeschanged' } );
+
+			}
+
+		} );
+
+	}
+
+}
+
+export { XRPlanes };