From: James A Simmons <jsimmons@acsu.buffalo.edu>
  To  : ggi-develop@eskimo.com
  Date: Wed, 19 Aug 1998 19:39:37 -0400 (EDT)

RE: LibGGI3D RFC

> Providing indexed triangle function is also very important, since it can cut
> transformation and projection time (which is about 80% of rendering time in
> the code I have written) by a factor of 2 or more, depending on the topology
> of what the triangles actually represent.
I not familar with this. Can you write me about this?

> Since a major goal of LibGGI3D seems to be hardware support, I'd like to
> suggest that LibGGI3D only support primitive shading built into hardware:
> flat and gouraud shading, texturing (incl. muti-) and _alpha blending_.

> 
> Most other shaders can be built on top of these features, combined with
> adaptive subdivision where necessary.
>

That is what i suggest with my color function idea.