QGLWidget with custom OpenGL context
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Hello,
I'm trying to have my custom context creation works with QGLwidget, by creating a custom QGLContext.
But I'm facing a problem on Linux (so with GLX):
The visual I get from my FrameBuffer configuration ( glXChooseFBConfig / glXGetVisualFromFBConfig ) is not compatible with the one in the QGWidget.
And so the glXCreateWindow needed for glXCreateContextAttribsARB, fails.I would like to know if it's possible to update or create the QGLWidget from my visual?
Because it's seems important to match the glx concept :
- FrameBufferConfiguration creation
- Visual retrieving
- XWindow creation from visual ( so my qt widget )
- GLXWindow creation from FBConfig and XWindow
- GLXContext creation from GLXWindow & FBConfig
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I wrote a small article to describe that : http://virtrev.blogspot.fr/2012/12/custom-opengl-context-with-qt.html