From 4.15 notes:
That’s great, but in my case I prefer the old emissive/bloom look for my project, because it better matches my artstyle. I see that I can turn it off by adding r.TonemapperFilm=0, but "We intend to remove the old tonemapper in a future version of the engine." - so I guess that this is only a temporary solution.
For example, this is my goal (<=4.14):
You can see that the orange color is visible, as well as the slight orange bloom effect.
Now, this is how it looks in 4.15, I’ve additionally increased the Emissive multiplier by a lot to make the bloom show up:
As you can see, the orange color is gone.
Is it possible to somehow ‘simulate’ the old effect with the new 4.15 system? So emissive materials would retain their color (instead of turning white, I know that this is physically correct, but we’re talking about stylized/fantasy world).