By the way: For several textures it makes sense to do a gamma correction directly on the texture used (and save this modified texture for later use). For this textures no shader must first be loaded to each material anymore. So even old scenes may be processed without the need to change them.

The biggest advantage compared with shaders is that gamma correction may be processed for each color individually.

After I'm ready with this version, I'll make a version based on Poserfiles (scene, character, prop, material). Any texture found in this file is loaded then, can be corrected, saved (with another filename) and a version of this file is saved with the new/modified textures attached.

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