RT Shadow artifacts

Development Rendering
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1

Hi!

I`m getting these blocky shadow artifacts with my RT/Lumen lighting setup in 5.0.3. Any thoughts on what’s causing it?

RT_shadow_bug
RT_shadow_bug1515×1135 68.9 KB

I believe that my project (third person game template) should be correctly setup with ray traced shadows and lumen global illumination. The only light source is a RectLight which is set to movable and with RT shadows enabled.

In project settings I have enabled support hardware RT and use hardware RT when available.

I am working on a Zephyrus G14 2022 running Win11.

All help is appreciated, thanks!

light settings
light settings825×486 12.9 KB

project settings
project settings2008×487 38.4 KB

2

It seems like the asset are using very few faces and they are highlighted by the harsh lighting conditions. How different does it look compared to the viewport and the render?

3

This is the standard sphere from the place actor tab.

Viewport and render look the same, however if I change lit mode to path tracing it looks much better. This makes me think it’s a problem with my lumen/RT-setup?

Path traced:

PT_LS_CAM1.0001
PT_LS_CAM1.00011920×1080 34.4 KB