    });

                // Second channel for aoMap and lightMap
                // https://threejs.org/docs/#api/en/materials/MeshStandardMaterial.aoMap
                material.aoMap.channel = 1;

                const uniforms = {
                    mirror: { value: 0 },
                    mixStrength: { value: 10 }
                };

                material.onBeforeCompile = shader => {
                    shader.uniforms.reflectMap = this.reflector.renderTargetUniform;
                    shader.u