Class: MeshPhysicalMaterial
MeshPhysicalMaterial()
parameters = {
 clearcoat: ,
 clearcoatMap: new THREE.Texture(  ),
 clearcoatRoughness: ,
 clearcoatRoughnessMap: new THREE.Texture(  ),
 clearcoatNormalScale: ,
 clearcoatNormalMap: new THREE.Texture(  ),
 reflectivity: ,
 ior: ,
 sheen: ,
 transmission: ,
 transmissionMap: new THREE.Texture(  )
}