I'm sure it's been asked here before but I'm having trouble finding it. I've also seen the few Intel related tutorials around but for some reason I'm just not getting this. Does anyone know of some decent tutorials or pointers that show how to light a basic HDR scene or to perform simple HDR lighting? I'm familiar with the concepts (vaguely) where you take a floating point texture and use it to bleed or drain colors from surrounding pixels but I'd like an end to end tutorial as a reference point since I'd like to start playing around with this. Thanks in advance for all responses.