[Bf-committers] Color space issues in importers/exporters

[Fazekas László]

I think it is possible to convert the linear space to other color spaces 
and vice versa. So perhaps the dialog should work in any color space you 
want, but in the background it could still be linear. I imagine the 
dialog "remembers" the last used color space for each color separately 
(it needs some additional bits in the material structures) and has a 
menu button to change it. Maybe also a new button in the user 
preferences to set the default space.

But it's tricky to handle the hdr (>1.0) and negative color values in 
spaces like sRGB. Maybe this can be solved if you change to linear space 
for the values outside of the selected color space.