Current FBO implementation: answers to some common questions

There are a few questions related to current FBO implementations that have come up repeatedly in this forum. At the SIGGRAPH 2005 OpenGL BOF, NVIDIA gave a short presentation that answers many of these questions with respect to “release 75” drivers. That presentation has been made available here:

http://download.nvidia.com/developer/presentations/2005/SIGGRAPH/fbo-status-at-siggraph-2005.pdf

I hope that it will help to answer some of your questions.

One thing to add is that support for EXT_packed_depth_stencil is already implemented and will be available relatively soon in public drivers.

with a gffx
i can create a depth16 FBO
i can create a depth24 + RGBA FBO
but i cant have a depth16 + RGBA FBO
ie i get FRAMEBUFFER_UNSUPPORTED_EXT
is this a hardware limitation with gffx or is it not implemented yet