The code in the CVS repository now includes code for object/scene blending operations (as opposed to multiple texture layer blending on the same object) allowing new effects like transparency.
I keep getting distracted from my Quake3 level work but I am progressing – the reason why I switched to this subject is that I realised my fallback technique to multipass rendering when not enough multitexturing hardware was available was not correct, and in order to be able to fix it I needed these new blending options. I’m now wondering whether to fix the multipass fallback now I have the tools or to leave it until later.
There’s a new screenshot in the images section showing one of the new blending effects. Enjoy.