Mathias Fröhlich wrote:
> I traced that down yesterday for the binary ati driver.
The SGIX Pbuffer Extension just returns no configurations, but the glx Pbuffer
code does. I guess that ati phases out support for that extension in favour
to the newer standard glx implementation.
Does somebody know when glXCreatePbuffer appeared in the glx standard?
What I have is glxPBuffer initialization code which works for me.
I guess it would be best to make a configure check for glXCreatePbuffer and
then try to initialize the SGIX extension Pbuffers. If there is none, try the
glXCreatePbuffer stuff if configure found that.
What do you think?
The RenderTexture class was developed to make use of as much hardware
support as possible when rendering to a texture. To do so it does abuse
some other hardware functions when pbuffers are not present.
In fact, think it is about time to add support for the official
rendertexture extension if it is available.
If anyone wants to improve the RenderTexture class, please go ahead.
Just make sure it is a *runtime* check rather than a configure check!
Erik
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