My 3d OpenGL engine doesn't currently like meshes mixing quads and triangles, at least not in the same mesh. I wonder if that'll be a problem. OTOH, one can just select all faces and say "Turn to triangles" in Blender...
I tested with some raw data -> copypasta. I'm thinking of writing a raw reader, just to hasten testing. I'm .... but, I'm rambling about something I haven't really talked about before, so nevermind.
Basically, it relates to something like this:
As you can see, I did write a RAW reader.
Blender .Raw exports everything separately, so I had to load multiple meshes for this output - got to test my GLScene's capability of rendering multiple meshes. Neat.
Oh, and I convert quads to tris on the fly, although not 100% sure if that works.