I thought I’d have a play around with FBO’s. I downloaded the NVidia FBO demo but it wont run, it gives me
‘Unsupported framebuffer format’
How do I debug this?
Try OpenGL Extensions Viewer . There is a FBO rendering test. And you can compare the performance against the ‘PBuffer’ version.
Install it, go to Rendering Tests, check ‘EXT_framebuffer_object’ in ‘Framebuffer Effects’ and see if it is working.
I have found that having any setting other than ‘application controlled’ for anisotropic filtering will break FBO…even forcing it off. It would be nice if this wasn’t the case, since it is a confusing problem to deal with, considering people use the driver forced settings for a variety of reasons.