Directional light creates lines on meshes. It’s most noticeable on flat surfaces like this cube. When light hits it from an angle lines show up. [51653-bullet_003.jpg]

If I’m correct, this was an issue with cascaded shadow maps all the way back in UDK. when shadows hit a certain angle on geometry. It seems much better in UE4 as there are more options to control shadow rendering. I can elimate this entirely by adjusting shadow properties. Play with the numbers for…

Why does my Direction Light cause lines on my mesh?

Development Rendering

Tim_Hobson (Tim_Hobson) July 28, 2015, 3:32pm 4

You can have a look at our Wiki Lighting Troubleshooting and Tips guide in the Dynamic Lighting section.