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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

Hi Brad,

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

Regards,

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dwitczak
Staff

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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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"

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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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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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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jherico
Adept I

Any progress on this? 

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