Hi Martin.
Thank you for answer my question.
Yes, Your presume is right.
I don’t need eye adaptation tonemapping, because I’m trying to make camera adaptation scene in UE4.
Generally, eye adaptation tonemapping is just a simulation of human eye, but I think it isn’t conclusive simulation.
So I’ve chosen to make camera simulation scene, that is camera linear image that from camera raw data.
It is similar approach with film.
I’ve gotten this simulation with cryEngine’s game mode actually by compared with camera linear, because cryEngine was easy to kill the whole post process.
In fact, tonemapping will become a noise in this situation.
I guess if I won’t remove tonemapping in UE4’s play mode, I can’t achieve well-reasoned photorealistic visual with UE4.
That is a reason why I want to preclude the tonemapping in Play mode.