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Reduce redundant GL state changes. #524

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roboman2444 opened this issue Jan 4, 2017 · 0 comments
Open

Reduce redundant GL state changes. #524

roboman2444 opened this issue Jan 4, 2017 · 0 comments
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enhancement request/proposal to add a new feature performance renderer

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@roboman2444
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Adding a little check like
if(curprogram == wantedprogram) return;
can sometimes help performance.

I might submit a pull request in a day or two that does this if I have time.

Also, using a "state manager" might make it easier to program with.

output of gloverrides:
81 frames in 1006.950012 milliseconds = 80.440933 fps
State status:
glActiveTexture redundant/total: 0/0
glAlphaFunc redundant/total: 0/0
glBindTexture redundant/total: 4241/50027
glBindVertexArray redundant/total: 0/0
glBlendFunc redundant/total: 567/891
glColor* redundant/total: 0/0
glCullFace redundant/total: 0/0
glDepthFunc redundant/total: 324/810
glDepthMask redundant/total: 162/486
glUseProgram redundant/total: 7142/10301
@yvt yvt added performance enhancement request/proposal to add a new feature renderer labels Jan 4, 2017
@roboman2444 roboman2444 mentioned this issue Jan 9, 2017
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@roboman2444 @yvt