@ Monster - I was thinking of making a GLSL shader, but at the moment I only have very basic skills. Surely the source for the UV function uses openGL, so it could be used in a script? Do you know how to do the slow vertex method or the GLSL method? It would help a lot…
@ Moguri - I can’t do billboarding/halos because I’m trying to make the texture of a large, complex object, like a house, have its texture permenantly face the camera. Although, it would be awesome if there is a button in blender to do just that!
Thank you both for your help so far.