I tried to do a search here for a thread started by Bagginsbill about gamma correction and gave up after looking through a few, but did find the one that **IsaoShi** did. Maybe Acadia can add the main link to the Materials sticky thread.

Are there any advantages to using gamma correction within Poser versus doing it in postwork?

The problem doing it in Poser is that it requires a render to fully see what the lights are doing and, depending on the complexity of the models in the image, that could take many minutes to hours to see. In postwork, all changes are dynamic and immediately seen. A lot more experimentation can be done in postwork in little time instead of tweaking and rendering in Poser time after time. My basic workflow is to get the lighting as good as I can in Poser and then bring it into Photoshop to punch up the colors as I did in the above image. The top image is what came right out of Poser and the bottom shows just the change from using Photoshop curves to enhance the colors I wanted to bring out.

The one thread where I saw gamma correction used in Poser, in an earlier thread, the nodes were fairly complex. If memory serves me right, those nodes had to be be applied to each texture. It wasn't a one-time solution.

My visual indexes of Poser content are at http://www.sharecg.com/pf/rgagnon