Well, you posted this OpenGL code and said it was not working, I answered to that. Sorry if that was not your initial issue. Things are already quite hard to figure out when SFML + OpenGL and/or GLSL are involved, so you shouldn't post things that are
not your problem; even if they are related, they can make things more confusing (i.e. someone gives an answer which doesn't apply to your initial problem... for example
).
Anyway, I'll read the whole discussion and see if I have something new to answer.
