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jherico
Adept I

I'm trying to track down an AMD specific OpenGL issue

I've detailed the issue (massive CPU memory usage when attempting to use sparse textures) on Stack Overflow here​ but I'd like to ask specifically in the OpenGL forum.  What do I need to do to establish my credentials and get access to communicate there?

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7 Replies
dipak
Staff
Staff

Re: I'm trying to track down an AMD specific OpenGL issue

Hi Brad,

You've been whitelisted now. I'm moving this thread to OpenGL forum.

Regards,

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dwitczak
Staff
Staff

Re: I'm trying to track down an AMD specific OpenGL issue

Thanks for the report. I'd appreciate if you could provide a buildable repro so that somebody from the GL team could have a look.

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jherico
Adept I

Re: I'm trying to track down an AMD specific OpenGL issue

I've created a minimal example using GLI, GLM, GLEW and GLFW here:  GitHub - jherico/gl_scratch

I've tested on Windows 10 using CMake to create a project using the following generator:

-G "Visual Studio 12 2013 Win64"
dwitczak
Staff
Staff

Re: I'm trying to track down an AMD specific OpenGL issue

Thanks, I'll pass this to the GL team for further investigation. Will get back to you as soon as I hear back.

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jherico
Adept I

Re: I'm trying to track down an AMD specific OpenGL issue

Any progress on this? 

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mirh
Adept III

Re: I'm trying to track down an AMD specific OpenGL issue

Can it have anything to do with the Dreadful OpenGL performance fix that you PMd me about back in October and that's still lacking?

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jherico
Adept I

Re: I'm trying to track down an AMD specific OpenGL issue

mirh, if you're creating lots of individual 2D textures and marking them sparse, yes, that could be related.  Try running you application and watching CPU memory usage over time.

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