   realtime rendering
  I want to render the motion of a character model in runtime but the character model is not loaded from file. so, more than 50 times every second updated model of how to create Direct3D path for vertex are drawn?   
  in brief, i'm not loading model from .x file. I'm creating and processing polygons in my physics engine. but i dont know how to send realtime processed vertices to directx in runtime ?any answer would be very helpfull.thanks.   ;  Create a vertex buffer with D3DUSAGE_DYNAMIC. Every frame: lock it, copy your stuff into it, unlock it, bind it, render it, unbind it.   ;  thanks for your reply.can you show me some code example ? because i'm newbie at directx.   ;  See Performance Optimizations (Direct3D 9) -> Using Dynamic Vertex and Index Buffers. There's a code sample there too.   ;  ok, i'll try it. thanks between.   ;  i have one more question.is it possible to compute the operations in gpu which are in physics engine ?can i use nvidia's cg or something else for this operations?