I can't find a way to render the luminance of the scene. The goal is to create a night vision effect that would render the luminance of the scene modulated in green. Does someone have a clue how to achieve this ?
Re: rendering luminance
It's easy. There are material attributes that you can change, all you have to do is set their "ambient" lighting to whatever luminance value you need. Lemme see if I can get any more info for you... I believe it's glMaterial() and other associated functions. Well, I am not at home so I'll have to get back to you on this matter. Anyways, what I can gather here, I think you turn off lighting, and then control the object's colors via the materials. Somebody plz correct me if I'm wrong.