   I sudently found I can access video card directly?
  we create a vertex buffer and lock it and get a pointer. so I can access by the pointer. It is unbelievable.more,where could I found good video card stuff except nvidia ati offical website?edit: I guess when call lock ,a temp system memory space create for it and data copy to it first and them copy to video card by driver of card.[Edited by - derek7 on December 5, 2005 11:27:26 PM]
  Read the docs. The only unbelievable thing is that you keep bombarding the forum with questions and revelations without even doing the slightest bit of research.Muhammad Haggag   ;  No kidding.  This guy is a real piece of work.   