Hi all, I''m new to Visual C++ and OpenGL, but I''m an old timer when it comes to graphics programming. I''ve been "playing" arround with OpenGL for a week now, and it seems very easy to grasp and programm. Things almost get done by themselfs. I guess my question is: Where can I optimize OpenGL? Can I be the one drawing the polys, can I calculate the normals, do the rotatations, in assembly? Or is it that OpenGl does not work this way? I''ve been told that Quake III Arena was done in OpenGL, so... Thanks to all, Jadar Karenine Hugo Ferreira

Well.. Most suggest lists over immediate mode.. But I haven''t looked that much into this yet. As for doing your own code, most of the time it''s optimized, but sometimes you can get better performance doing your own stuff.. For example, in the openGL SuperBible, it says you can calculate your normals into unit normals with glEnable(GL_NORMALIZE), but it has performance penalties... And since there is plenty of optimized SIMD code out there, I say give that a shot... The thing about doing some transformations and rotations with OpenGL is 1. It''s probaly less work, 2. if a card has T&L acceleration, it will use it.. But most cards don''t have it..

I personally like doing my own transformation stuff, but I also like to have chocolate milk in my Rice Crispies.. =)

--SR