On 11-12-22 09:36 AM, Stefan Eilemann wrote:
> I need to detect within a C++ program whether or not I'm running under 
> VirtualGL, to enable certain optimizations. What is the recommended way to do 
> this?

When VGL is running it overrides the GLX vendor strings with 
"VirtualGL".  Try glXGetClientString() with GLX_VENDOR. 
http://www.opengl.org/sdk/docs/man/xhtml/glXGetClientString.xml

-Nathan

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