hi,
is there a mechanism in openGL (e.g. glut) to let the shaders work while the cpu can do some other tasks concurrently instead of blocking? or do I have to deal with threads on my own. that would be bad because of differences between windows and linux.
Thx a lot 
most of OpenGL is already asynchronous, you don’t have to do anything except avoid the few calls (eg. glFinish, glReadPixels) which are synchronous.
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