offset mapping造句

"' Parallax mapping "'( also called "'offset mapping "'or "'virtual displacement mapping "') is an enhancement of the bump mapping and normal mapping techniques implemented by displacing the texture coordinates at a point on the rendered polygon by a function of the view angle in tangent space ( the angle relative to the surface normal ) and the value of the height map at that point.
It's difficult to find offset mapping in a sentence. 用offset mapping造句挺难的