How to get more clear shadows?

Hello. I’m using emissive light in material and I’m getting strange “wobbling” shadows:


I suppose it’s because of ray tracing or something like that. How can I disable it? I’m ready to sacrifice accuracy for more good looking result. I’ve tried to disable “Cast Ray Traced Shadows” parameter in material settings, but I can’t see any difference…

Disable “Affect Indirect Lighting.” within the actor blueprint or mesh, it might be “Affect Distance Field Lighting” but I’m not sure. It should definitely be one of the two. If that doesn’t solve it, you will probably have to set up an actual light instead of an emissive material.

Can I disable it if I don’t have a BP? I just using static mesh for now and there is no such settings for it.
Edited: I found this setting here:


but it doesn’t change anything. I found another strange thing - when I’m hovering any of materials light is becoming much more bright:

I suppose my lighting can be just bugged. Can the problem be in project settings?

Don’t use strong emissives to light scenes, use actual light actors.

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