Light leak with realtime lights

Udjani · Oct 2020

Can't figure out how to fix this, I tried making the wall thicker but didn't work. Playing with shadow bias can fix the leak but then the light falloff looks awful.

Image: https://us.v-cdn.net/5021068/uploads/editor/js/3wbsoqvt87qv.png

Having backface on all of the objects on the top part also doesn't work.

Obscura · Oct 2020

Unfortunately, for movable lights, there is no real solution for this other than the cast shadow and its bias setting. Since you are in Unreal, you can try adding some contact shadows on top and see if it helps.Depending on the shape of the elements of the asset, enbling 2 sided material can also help, if there are holes in the mesh.

Light leak with realtime lights

Replies