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Geometrian

OpenGL Overheating, Software Fallbacks, and FBOs

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Hi,

I have found that when the GPU overheats, a program will switch from OpenGL rendering to a software fallback. More interestingly, I've found that there's a difference in semantics between software and hardware support.

My FBO class checks for errors after all the setup was completed (but before any render targets had been added). When rendering with GPU mode, this works fine. However, with the software fallback, I get GL_FRAMEBUFFER_UNSUPPORTED. This code is fairly robust and I've used it for years without incident--the problem only seems to occur when a software fallback takes place. I'm assuming this difference in behavior is unintentional. Does anyone know for sure?

Thanks,
-G

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Report the problem at the driver bugs forum http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=postlist&Board=13&page=1

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