# UNREAL ENGINE 4.24.3 OVERLAPPING SHADOWS PROBLEM

**URL:** <https://forums.unrealengine.com/t/unreal-engine-4-24-3-overlapping-shadows-problem/464371>\
**Category:** Rendering\
**Tags:** Lightmass, Shadows, shadows-problem, baking, unreal-engine, Lighting, question\
**Created:** [April 28, 2020, 12:21pm UTC](https://forums.unrealengine.com/t/unreal-engine-4-24-3-overlapping-shadows-problem/464371 "2020-04-28T12:21:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![christianstamati](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@christianstamati](https://forums.unrealengine.com/u/christianstamati)\
**Post date:** [April 28, 2020, 12:21pm UTC](https://forums.unrealengine.com/t/unreal-engine-4-24-3-overlapping-shadows-problem/464371/1 "2020-04-28T12:21:52Z")

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Hi,  
I tried to bake a simple scene with a plane, cylinder and point light. I was running on an RTX project and I increased the **Source Radius** to make the source softer.  
This is the baking result:

 ![300775-os.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/a/8/7a81d276337fd0d6789c2a9bf7ac747b80cf68ff.jpeg)

* * *

 ![300776-os2.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/2/2822f64657aecf8acc2739b49da85e258b10701c.png)

* * *

![300777-os3.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/a/1/4a163639836cb2efb75023e1ca2de7128cbe21f5.png)

- I checked the uvs and they are fine
- The smoothing groups are ok
- And the lightmap res of both objects is set to 1024px

It’s strange because when I use Luoshuang’s GPULightmass on UE 4.26 dev-rendering this artifact is not showing but in this case I used the standard baking system of unreal.

* * *

 ![300780-test-02.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/c/0/1c00acd177721c870936b3984c974296a34637e9.png)

In this case it was baked with GPU Lightmass, how you can see the result is much better but i’m getting Faceting on smoothing groups I guess because the resolution of cylinder it was really high, if I set it to 64px the faceting will disappear but i will get edge bleeding.