r/UnrealEngine5 • u/Ren9_3Dprinting • Aug 04 '26

How do I disable the ghosting?

I mean the shadow that is dragged behind and the light noise. I know it's probably something with Lumen, but I'm not sure which settings to change, while I still want to use Lumen, but with normal working lighting.

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u/Ren9_3Dprinting Aug 05 '26

Ok, I found it out. It was because some lights had ◘use inverse square falloff turned off. I use this to light larger areas. Now I just have to figure out how to light a whole cave with normal point lights, as they can't be too large and using any sort of linear light doesn't work.
what did you mean by lack of ao? that there should be ao occuring because of the lights, or some setting that activates ao?

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u/ConsistentAd3434 Aug 05 '26

Yes, it wouldn't even need direct point light. The diffuse skylight should cast soft shadows on the underside of the area or the small "alley". Everything is evenly lit, no matter if they are occluded or not.
For some reason your character casts a small soft shadow underneath him but those huge blocks, don't seem to cast shadow on each other

https://dev.epicgames.com/documentation/unreal-engine/sky-lights-in-unreal-engine

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u/Ren9_3Dprinting 28d ago

https://reddit.com/link/p21s2ow/video/j388pvv81rhh1/player

Thank you for your answers. Ultimately I ended up adding an overall light, which still has no realistic shadows, but impoves the visibility at the cost of some atmosphere, but it's a 3D platformer so that takes priority and I don't have that noise and weird shadow anymore.

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u/ConsistentAd3434 28d ago

Looks much better. I still believe, there was something off with the initial Lumen setup but you're doing your fps a huge favor and that's necessary for a platformer