Regarding issue UE-41065
Yeah, that can’t just be “by design” since it breaks all current content. If it is by design, then at least every material needs a checkbox where you can check if you want this new behavior where an emissive blue is getting purple and later white, but that checkbox should be disabled by default for every material that was created before 4.15.
But it is an issue because of how it works, you can no longer get the look you had before. It is impossible now to get any saturated color that’s causing a lot of bloom. For that it has to be multiplied by ~20, but once you do that with any color its just something like white. So you can’t have a strong glowing blue or red material now, they will no longer be blue or red.
So the issue is not only that you would have to redo all your materials, but also that its impossible to get the look you got before.
So has anybody managed to get the old look (a nice saturated color glow with bloom) back? The recommended r.TonemapperFilm 0 is not doing it for me - any other values I have to tweak? I can’t imagine that it is an intended change to make nice glowing materials impossible…