isn't just image name ? materialID(obj, "IMXX")

you could use: .. warning::

that loads the image source to the texture on the GPU ?

Maybe, but I have no idea, most of this stuff was grabbed from the current manual: https://docs.blender.org/manual/en/dev/game_engine/python_api/videotexture.html

This references back to the "How it works" section

Rather not, this doesn't really match our style.