@BB:

Quote -  Now it's that sRGB colors are linear and do not need to be anti-gamma corrected.

Seems to me that Kawecki (and perhaps others) don't understand what

anti-gamma correction

means.

@all:

Most images (even those taken from a camera) are already gamma-corrected. To use those images in a render (as background or texture) the gamma effect has to be reversed
At least if the render-engine is using gamma correction for his output (better: for the LUT = Look Up Table in use).

With Lux this output gamma-correction can be done at any time - even after the image is completly rendered  (back to topic)! 

In a perfect world it is up to the user to anti-gamma correct used images. Just because software can't know wether an image is actually gamma corrected or not. But in Poser world mutch people don't care about things behind the scene (if a resulting images looks good anything is fine).

What BB tries to do -as far as I understand- is to find a good guess: Should he do anti-gamma correction on loaded textures or not? Because most images are gamma-corrected already, anti-gamma correction as default is a good choice. Perhaps with a button in the userinterface for exceptions.

But the real problem is to find an "embedded" gamma correction in a Poser material node set and correct (remove) this. Or vice versa: Is there a node set in front of an image that does anti-gamma correction? Try to find out while looking on a complex Poser material and you get a clue what BB tries to do with software. Just to help Poser users to get a render result in Lux close to what is seen in Poser.

---