[NormalMap & CubeMap] 有时候我们需要CubeMap的环境反射也需要有凹凸信息,此时需要装将NormalMap与CubeMap结合. 因为要使用NormalMap,使用Property定义中必须有定义NormalMap: By using the INTERNAL_DATA statement, we can access the surface normal after it has been modified by the normal map. 关于INTERNAL_D…