Weird shadows from windows?

Development Rendering
, , , , , ,
1

Hello everyone!

This is my first post here so sorry if I posted it in the wrong section…

Basically I am new to UE4 and I want to create windows. The problem is that I get weird blocky shadows from my windows. I also get a few warnings when building lightning:

Object has overlapping UVs.

Lightmap UV are overlapping by 16.3%. Please adjust content - Enable Error Coloring to visualize.

My glass material is from here:


My window object:

And a picture of my problem:

99344-problem.png
99344-problem.png1055×563 305 KB

Any help is appreciated!
Thank you very much!

EDIT: I just realised this should be in the rendering section… Im really sorry…

2

Hey mateo,

I’ve moved the post to the Rendering section for you.

Also, you may want to take a look at the Wiki Lighting Troubleshooting Guide for some insight to these types of common issues.

Specifically the following ones:

Between these two sections it should help you resolve your issues. If you’re not sure about lightmapping and how to fix this in a 3D modeling program you can see our documentation linked below for more in-depth details.

I hope this helps.

Tim

3

Thank you very much Tim! I’ve seen a few answers from you before and it seems like you know what youre doing :slight_smile: I am reading these links as I am writing this and I will post an update after.

4

I have read all of the provided links… I tried channging the lightmap resolution, I tried changing the build lightning quality, I created the second UV channel about 20 times now. I changed the lightmap index to 1 aswell… Im starting to think UE4 isn’t for me… Lightning is really complicated…

I also added another window model to see whether the problem would go away, but it didnt, in fact now it has weird shadows on the border:

99477-problem2.png
99477-problem2.png1054×561 327 KB

5

you must set the lightmass resolution of the floor bigger instead of the window