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speed up code

Started by InsanE Jan 7, 2001 at 6:11 AM 1 replies 550+ views

Original Post

Jan 7, 2001 at 6:11 AM

Ever saw the q3 FPS counter? When I compare my FPS count with the complexity and speed of q3 I am going to ask me how Johny is doing that. Are there some tut''s speaking about speeding up code on the net? BTW: Does q3 renderer uses the OGL clipping or is it calculating the clipping values by itself? Clipping is done with the hardware accelerator ( I guess). Now is it better to write clipping code or just doing OGL that stuff?

Julio

Jan 7, 2001 at 4:15 PM

Well, the q3 engine uses BSP trees among many other things to keep the rendering speed up. Soem argue that bsp trees are becoming out of date, but I think they are fine for indor fps games. try looking into bps trees or octrees and hidden surface removal. that should help out a lot in rendering speed. also, maybe look into OpenGL extensions such as vertex arrays, display lists, compiled vertex arrays, surely one of these will fit into your engine without a lot of problems.

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zedzeek

Jan 7, 2001 at 6:21 PM

as the nvidia performance FAQ saiz. let opengl do the clipping for u its bound to be faster than what u can come up with by hand

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