OpenGL "out of memory" on glReadPixels()

Posted by spurserh on Stack Overflow See other posts from Stack Overflow or by spurserh
Published on 2010-03-14T16:00:40Z Indexed on 2010/03/14 16:05 UTC
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opengl

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Windows

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device-driver

Hello,

I am running into an "out of memory" error from OpenGL on glReadPixels() under low-memory conditions. I am writing a plug-in to a program that has a robust heap mechanism for such situations, but I have no idea whether or how OpenGL could be made to use it for application memory management. The notion that this is even possible came to my attention through this [albeit dated] thread on a similar issue under Mac OS X: http://lists.apple.com/archives/Mac-opengl/2001/Sep/msg00042.html

I am using Windows XP, and have seen it on multiple NVidia cards. I am also interested in any work-arounds I might be able to relay to users (the thread mentions "increasing virtual memory").

Thanks, Sean

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