修改静态资源文件夹位置

public/sdk/three/jsm/webxr/XRHandPrimitiveModel.js

@@ -0,0 +1,103 @@
+import {
+	DynamicDrawUsage,
+	SphereGeometry,
+	BoxGeometry,
+	MeshStandardMaterial,
+	InstancedMesh,
+	Matrix4,
+	Vector3
+} from 'three';
+
+const _matrix = new Matrix4();
+const _vector = new Vector3();
+
+class XRHandPrimitiveModel {
+
+	constructor( handModel, controller, path, handedness, options ) {
+
+		this.controller = controller;
+		this.handModel = handModel;
+		this.envMap = null;
+
+		let geometry;
+
+		if ( ! options || ! options.primitive || options.primitive === 'sphere' ) {
+
+			geometry = new SphereGeometry( 1, 10, 10 );
+
+		} else if ( options.primitive === 'box' ) {
+
+			geometry = new BoxGeometry( 1, 1, 1 );
+
+		}
+
+		const material = new MeshStandardMaterial();
+
+		this.handMesh = new InstancedMesh( geometry, material, 30 );
+		this.handMesh.frustumCulled = false;
+		this.handMesh.instanceMatrix.setUsage( DynamicDrawUsage ); // will be updated every frame
+		this.handMesh.castShadow = true;
+		this.handMesh.receiveShadow = true;
+		this.handModel.add( this.handMesh );
+
+		this.joints = [
+			'wrist',
+			'thumb-metacarpal',
+			'thumb-phalanx-proximal',
+			'thumb-phalanx-distal',
+			'thumb-tip',
+			'index-finger-metacarpal',
+			'index-finger-phalanx-proximal',
+			'index-finger-phalanx-intermediate',
+			'index-finger-phalanx-distal',
+			'index-finger-tip',
+			'middle-finger-metacarpal',
+			'middle-finger-phalanx-proximal',
+			'middle-finger-phalanx-intermediate',
+			'middle-finger-phalanx-distal',
+			'middle-finger-tip',
+			'ring-finger-metacarpal',
+			'ring-finger-phalanx-proximal',
+			'ring-finger-phalanx-intermediate',
+			'ring-finger-phalanx-distal',
+			'ring-finger-tip',
+			'pinky-finger-metacarpal',
+			'pinky-finger-phalanx-proximal',
+			'pinky-finger-phalanx-intermediate',
+			'pinky-finger-phalanx-distal',
+			'pinky-finger-tip'
+		];
+
+	}
+
+	updateMesh() {
+
+		const defaultRadius = 0.008;
+		const joints = this.controller.joints;
+
+		let count = 0;
+
+		for ( let i = 0; i < this.joints.length; i ++ ) {
+
+			const joint = joints[ this.joints[ i ] ];
+
+			if ( joint.visible ) {
+
+				_vector.setScalar( joint.jointRadius || defaultRadius );
+				_matrix.compose( joint.position, joint.quaternion, _vector );
+				this.handMesh.setMatrixAt( i, _matrix );
+
+				count ++;
+
+			}
+
+		}
+
+		this.handMesh.count = count;
+		this.handMesh.instanceMatrix.needsUpdate = true;
+
+	}
+
+}
+
+export { XRHandPrimitiveModel };