Quote - There is already a built-in script which will change the Gc for all transparency, displacement, bump, and normal maps present in all scene objects. Yes, it requires several clicks, but it does a thorough job.

The problem with the gamma setting from the image_map node is however, that the gamma-setting is not tied to the node, but rather to the actual image that this node has loaded, as Taren already noted. This is most likely a bug, but it prevents effectively any side-by-side comparison from a figure with gamma to one without. Also one cannot use the same image for a bumpmap and for e.g. diffuse-color at the same time.

But Poser2010 has a 'gamma'-node in the math-nodes which does effectively the same and which actually works like the gamma-setting should work; giving a nice parameter where the gamma-value can be set. Alas there is no script that inserts the gamma node into the shader-tree, or is there?