https://github.com/WWBN/AVideo/issues/8713

node_modules/three/examples/js/postprocessing/CubeTexturePass.js

@@ -0,0 +1,66 @@
+THREE.CubeTexturePass = function ( camera, envMap, opacity ) {
+
+	THREE.Pass.call( this );
+
+	this.camera = camera;
+
+	this.needsSwap = false;
+
+	this.cubeShader = THREE.ShaderLib[ 'cube' ];
+	this.cubeMesh = new THREE.Mesh(
+		new THREE.BoxGeometry( 10, 10, 10 ),
+		new THREE.ShaderMaterial( {
+			uniforms: THREE.UniformsUtils.clone( this.cubeShader.uniforms ),
+			vertexShader: this.cubeShader.vertexShader,
+			fragmentShader: this.cubeShader.fragmentShader,
+			depthTest: false,
+			depthWrite: false,
+			side: THREE.BackSide
+		} )
+	);
+
+	Object.defineProperty( this.cubeMesh.material, 'envMap', {
+
+		get: function () {
+
+			return this.uniforms.envMap.value;
+
+		}
+
+	} );
+
+	this.envMap = envMap;
+	this.opacity = ( opacity !== undefined ) ? opacity : 1.0;
+
+	this.cubeScene = new THREE.Scene();
+	this.cubeCamera = new THREE.PerspectiveCamera();
+	this.cubeScene.add( this.cubeMesh );
+
+};
+
+THREE.CubeTexturePass.prototype = Object.assign( Object.create( THREE.Pass.prototype ), {
+
+	constructor: THREE.CubeTexturePass,
+
+	render: function ( renderer, writeBuffer, readBuffer/*, deltaTime, maskActive*/ ) {
+
+		var oldAutoClear = renderer.autoClear;
+		renderer.autoClear = false;
+
+		this.cubeCamera.projectionMatrix.copy( this.camera.projectionMatrix );
+		this.cubeCamera.quaternion.setFromRotationMatrix( this.camera.matrixWorld );
+
+		this.cubeMesh.material.uniforms.envMap.value = this.envMap;
+		this.cubeMesh.material.uniforms.flipEnvMap.value = ( this.envMap.isCubeTexture && this.envMap._needsFlipEnvMap ) ? - 1 : 1;
+		this.cubeMesh.material.uniforms.opacity.value = this.opacity;
+		this.cubeMesh.material.transparent = ( this.opacity < 1.0 );
+
+		renderer.setRenderTarget( this.renderToScreen ? null : readBuffer );
+		if ( this.clear ) renderer.clear();
+		renderer.render( this.cubeScene, this.cubeCamera );
+
+		renderer.autoClear = oldAutoClear;
+
+	}
+
+} );