I logged bug on mantis that CoronaBitmap doesn't respect override input gamma and always use automatic one. But now report was closed with resolution that it won't be fixed as automatic gamma is enough.
I'd like to start petition to reconsider this. First of all it makes converstion of old scenes troublesome as all my normal maps are loading with wrong gamma and i must manually fix it one by one. Aditionally, i quite often load greyscale jpegs with gamma 1.0 in reflection and/or glossy slots. Now with CoronaBitmap i forced to stick with gamma 2.2. i find it limiting.
Please, don't take that funcionality from us, as it's not making use of Corona simpler, more elegant or intuitive in any way.
Or maybe i should start a poll for this?