395(5): 名前は開発中のものです。 [sage] 02/02/08 23:09 ID:??? AAS
Generally speaking in todays we must calculate and get
z-value for every vetexes when converting the view coordinate
to the screen one but I heard there is a good method which doesn't
need to seek concrete z-value (or w).
If there is,we can omit division-calc for every vertexes.
Also I heard that using this method we will be able to clip or cull
polygons by Z-near/far plane but I couldn't understand at all!

help me.