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Tuning OpenGL Programs


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Posted 28 July 2001 - 02:36 AM

Is there an easy efficient way to tune your windows OpenGL programs? I have a 700 mhz Athlon + Geforce 256 and my processor usage is by 100 % even though I haven''t even started using textures? Are display lists a solution???

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Posted 28 July 2001 - 02:50 AM

yes, they are one of many solutions. they can be good for small scenes, but for large dynamic scenes vertex arrays or compiled vertex arrays would be better.

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Posted 28 July 2001 - 12:47 PM

100% is normal even for a blank window. would u want it otherwise. though i suppose u could chuck in a sleep call if u wish

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Posted 28 July 2001 - 12:55 PM

You have to realize that framerate, not processor utilization, is the proper measure of your program''s speed. Since as soon as the engine is done with one frame it starts on the next (at least, in most engines) 100% utilization is normal.

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Posted 28 July 2001 - 02:23 PM

Yeah.. I''d love to be able to do something else while running a engine window.... Can''t wait to get a dual processor system :o))

cya,
Phil

Visit Rarebyte!
and no!, there are NO kangaroos in Austria (I got this questions a few times over in the states


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Posted 28 July 2001 - 10:23 PM

OK, sorry but I''ve just started OpenGL and bought the Superbible, and there actually are programs on the CD which only use 66% of the processor, so I thought I may have to do something to tune my applications.
Thanks anyway

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Posted 29 July 2001 - 02:36 AM

That would probably be the ones using multithreading (Chapter 19 i believe). Either that, or you have some other program running as well which is using some cpu time.




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