Hello Michael,
On 10/10/2014 10:20 AM, Michael Raab wrote:
> the problem is solved but actually I'm not sure why. glCreateProgram was
> called twice by OSGSimpleSHLChunk::handleGL. Seems that the uiProgram
> value that handleGL() retrieves from pWin was no ok.
> I solved it by calling frameInit() and frameExit() around
> renderAllViewports(). In that case I did not call render() as I do not
> what the window to swap() as I have the FBO as target.
> Can you tell me what frameInit() is doing?
had to look that up first: it initializes extensions and fetches the
relevant function pointers from the GL context to cache them. Without it
extensions won't work properly on the context.
Cheers,
Carsten
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