[GEM-dev] [pix_multitexture] stuff

hey,

...in current CVS, I've hacked in multitexture support to GemShape's SetVertex() call, and it seems to work pretty well...however, sanity testing on other machines is always appreciated ;-) Attached is an example patch which allows two movies to be loaded, then combined in a later chain and blended/combined/added/whatever else on the gpu...

...main caveat is that this is only support in [rectangle], or other geos that use SetVertex() to set texture coords...also, it doesn't seem to work with GL_TEXTURE_2D, but GL_TEXTURE_RECTANGLE_EXT seems to be standard on cards anyway...

jamie