Shadow artifacts at dark areas

[Ashkandi]

Hey Folks!

I'm trying to make a map that have some dark spots so it'll need flashlight or something but i have some weird shadow artifacts at these areas.



-Builded with production light
-Same look ingame (not from editor)
-Floor is made with brush
-Have dominantlight for moonlight
-Static lighting intensity is 1, would be cool to lower it but these artifacts going to be more stronger if i do so
-Texture boosts are on 1 too
-Have no lights in the area of this part (it is under a stair)

Any idea what cause these artifacts? I really need dark areas that looks good.

Thank you.

[Ashkandi]

It's still f*cked, so bump.

[Jacky]

Are you talking about the blotchy shadows on the ground? If so then try increasing lightmap resolution.

[darthviper107]

Also, if you're using a post process that adjusts the lighting, I would turn down the brightness of the post process and increase the brightness of your actual lights, that way it will increase the shadow map range and hopefully look better.

[Ashkandi]

It affects only brushes, i guess it's something brush based error.