"exposure" menu in lighting

Development Rendering
1

hello,
i have a problem with ue4!
see this pic:

http://puu.sh/8LU2o.jpg

this Ability is very bad!how can i disable this Ability?

because level of it is very high.when i see to light and back my scene is very black an to be light has very long time!

how can i disable it or low level time to be light scene?
“what is name of this Technique?”
thanks

2

Autoexposure in the postprocess, adjust the values or just use better lighting in your scene.

3

Set the viewport setting, the one in your pic, to Brightness 1x which is the normal one.

Then add a post process volume.

Tick the box Unbound in it.

Then find the section Auto Exposure and set Min and max both to 1.0