Hello Johannes,
Johannes Brunen wrote:
> "Marcus Lindblom" <ma...@yar.nu> schrieb im
> Newsbeitrag news:4c1fb8dd.7070...@yar.nu...
>> True, but as Johannes said, they don't support multi-sampling on all
>> cards, so they're not really viable in all cases. :-|
>>
> Yes, unfortunately I have to support quite old graphic cards. However, I
> have nevertheless planned to give the FBOs a try. This is the future anyway.
> Possibly, I will go for a fall back solution in case of older hardware. I
> have to take look for the time and effort...
>
> How can I check for FBO support and if a FBO supports stencil and
> multisample operations?
FBO support:
// at an early point (before Window::frameInit()):
UInt32 fboExt = Window::registerExtension("GL_ARB_framebuffer_object");
// after Window::frameInit():
if(pWin->hasExtension(fboExt))
{
// has FBO
}
As far as I can tell, if "GL_ARB_framebuffer_object" is supported you
should also have multisample support as the spec for that extension
includes it. If you only have "GL_EXT_framebuffer_object" extension
multisampling may not be available.
Cheers,
Carsten
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