hmm Well, you could try the different level adjustments in Photoshop, I dont render straight out of Poser but I think I understand what you are talking about. Try going to Image / Adjust Levels, Curves, Brightness and Contrast etc.... play around with them a little and see what you get. You may also try asking in the Poser Forum about more natural lighting conditions, I think I recently saw where you can buy presets for natural lighting conditions at Daz3D.com. You may also want to try playing around with Photoshops lighting tools.... Filters/Render/Lighting Effects. It sounds like you are producing moving images though and if you dont want to do this frame by frame and have access to Adobe Premiere you can also change things around in there and apply it to the entire movie or to parts of the movie, works a lot like Photoshop in being able to change the hue, contrast etc. Hope that helps some.