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volumetric fog don't work.

hi i created simple project with one floor and one SpotLight then i add ExponentialHeightFog and checked volumetric fog. but its don't work. (Describing the problem:   First, adding a fog to an unusual setting becomes bright. Second, it is usually screen go to the dark by activating Volumetric Fog, and light shin effect is well seen, which is not done in this problem. The third after the lunch at first sight, the effect of light is seen but disappears after the first move...)

true result:(pc 1) alt text false result (pc 2): alt text

i create age this project in other PC and work it. then i copy this project to first PC .but this project don't working too. In the past, I've done this many times on this computer. so. i reinstall unreal again. But my problem did not resolve.

Product Version: UE 4.21
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asked Jan 15 '19 at 02:53 PM in Rendering

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avatar image Jacky Jan 15 '19 at 02:58 PM

Place a post process volume into the level and set it to Unbound if you havent already. Then scroll to Exposure settings and set min & max values to 1. See if it helps.

avatar image saman3d Jan 15 '19 at 03:06 PM

This does not solve my problem As I explained. I even copied the project that is right on other computer in this computer. And there is still a problem

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