Are you talking about an OpenGL engine that you code from Blitz, or something that requires C++ / Delphi / [insert language] knowledge? If it's a Blitz thing I'd certainly pay for it. :)
As for stuff to add...hmm. Re. file format loaders - I'd reccommend starting with .x files for loading as they're bloody simple. I've got a static mesh saver function (Blitz3D code) that I did for LightBulb if you're interested. Also if you're interested in adding extended sound support (let's face it, the sound commands are a little limited at present) .wav is dead simple. I actually coded a click-remover for .wavs in DarkBasic(!) ages ago. Obviously, I'd want to get my hands on the engine in return ;)
If you're not interested no hard feelings, but like I said I'd definitely pay $$$ for such code.
As for stuff to add...hmm. Re. file format loaders - I'd reccommend starting with .x files for loading as they're bloody simple. I've got a static mesh saver function (Blitz3D code) that I did for LightBulb if you're interested. Also if you're interested in adding extended sound support (let's face it, the sound commands are a little limited at present) .wav is dead simple. I actually coded a click-remover for .wavs in DarkBasic(!) ages ago. Obviously, I'd want to get my hands on the engine in return ;)
If you're not interested no hard feelings, but like I said I'd definitely pay $$$ for such code.