4.15 tonemapper - is it possible to simulate old effects?

Fair? :confused: - The goal is not a beauty competition in a lava-demo (as this issue happens at many other materials that uses emmisive as well) but finally finding a solution to work with the new tonemapper. This is no PS vs Xbox thread. If somebody could shed some light in how to hand tune the emmisives of the 4.11 screenshot it would ge great. I’ve tried to get the lava in the 4.15 to the 4.11 screenshot. But it’s either complete without any bloom or way too much white. And it seems red or orange is better than other emmisives like green or blue. Multiplying the emmisive input of the lava material * 0.1 in 4.15 brings similar red and yellow spots … but the yellow is still too much and too less saturated the bloom is gone (almost complete) and there are too much dark spots already as well (because it’s getting < 1 values for sure).

4.11 - Would get this:

4.15 - Makes this:

4.15 - tried to make it red again via multiplying the emmsivie 0.1 which made it more red, killed the bloom and still left too much yellow: