Efficient Rendering

aevanthony · 2008-04-24T14:25:53

Hmm, This application I tested with has a 128x128 texture, and the shader I'm using just does a glFragColor = texture2d...etc, a simple color assignment. Now when I scale the window up very large, my entire system suffers performance problems, mostly... actually more specifically, audio playback gets very bad and CPU shoots up. So I was wondering... what does OpenGL in place of when no shader programs are created? What's the default behavior? Maybe even... would it be a good idea to disable the shader program entirely when OpenGL is rendering a texture to the window, and just have it active while the FBO is rendering to the texture?

Graphics and GPU Programming Programming OpenGL

Started by aevanthony April 23, 2008 04:49 PM

9 comments, last by aevanthony 16 years ago

aevanthony

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April 24, 2008 02:25 PM

Nice, thanks for the patience! :D

Just so it's here for a reference, I found a nice snippet of code on glprogramming .com to work with that; http://glprogramming.com/paste.php?paste=192

Thanks again! I think I can be happy with what I have finally and move toward blending multiple textures and such now. Mmmm, the reward of progress is addictive.

[Edited by - aevanthony on April 24, 2008 3:25:24 PM]

Efficient Rendering

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Efficient Rendering

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