Class: MeshDepthMaterial
MeshDepthMaterial()
parameters = {
 opacity: ,
 map: new THREE.Texture(  ),
 alphaMap: new THREE.Texture(  ),
 displacementMap: new THREE.Texture(  ),
 displacementScale: ,
 displacementBias: ,
 wireframe: ,
 wireframeLinewidth: 
}