boggelz , by OpenGL matrix functions you mean glTranslate , glRotate and glScale ? Why should those be avoided ? Do you have an example of how the transform tree should be implemented ? The glTranslate, Rotate etc functions always implicitly work on a global matrix stack. You're constantly pushing ...

Yes, I understand. And thank you for your interest! That is the motivation for me deciding to add support for indexed arrays by implementing glDrawElements(...): We can light and transform less vertices before assembling into primitives for rasterization. The pleasure is mine. By the way, reading t...

To be honest, I am not quite sure what you mean by "immediate mode". Do you mean "Direct Rendering", the way the old KGL submitted vertex data to the PVR, or that of using "glVertex3f(...)" to submit vertex data, as opposed to glDrawArrays(...). Direct Rendering = oppo...

@PH3NOM: Are you worried about immediate mode so that old software can be ported easily? Software using immediate mode will perform poorly anyway, so I think you shouldn't worry about optimizing it too much, at least for a first release. BTW I'm curious about the performance difference between immed...

The pre-sort mode makes the TR list behave like ordinary Z-buffered rendering solutions, complete with the usual quirks regarding alpha blending and intersecting polygons. You also can't use translucent modifiers in the pre-sort mode. Does that mean you can change whether the GPU acts like a tiled ...