I'm sure this question has been answered a million times, but I haven't seen it answered, so I'm asking it again. =) Maybe you can just point me to a forum thread or article or something real quick. I would like to know the theory of High Dynamic Range. As I currently understand it, HDR is a post-processing effect that copies an image, makes transparent anything below a certain luminosity, blurs it extensively, then places it over the original image. This produces "glare" effects, as well as allowing a 3D image to have large areas of full white, making it appear brighter and more realistic. Am I correct? Or is this something else entirely?