Skylight shadows are completely broken

General Issues and Bug Reporting
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1

Summary

In UEFN skylight shadows are broken. When using the default TODM’s in the world settings or custom lighting on NON lumen device you get aggressive flickering and artificing while this isnt the case on Lumen

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

drag in an object with some curvature/ complexity that is a light color and drag in a post process volume with the rendering “method” set to “none” (this turns off lumen)

Expected Result

That you dont have any flickering issues

Observed Result

The object flickers like crazy

Platform(s)

Any platform that doesnt have lumen

Island Code

6570-5231-1418

Video

Additional Notes

It seems the issue is rooted from the skylight. when you turn skylight “cast shadows” off this issue doesnt happen anymore but you need shadows to have a good looking map…

6

Hi,

Can you open that object in the mesh editor and check for overlapping faces, broken normals etc.? Post a screenshot of it in wireframe mode, please.

7

image
image2257×1205 177 KB

Topology is pretty standard

8

The bottom and top faces seem to have some long, thin triangles. Can you try breaking up the faces and cleaning up those slivers, to see if that fixes the issue?

9

Hi @Leo_JokerYT, maybe it helps if you switch to

“Day Night Cycle - Chapter 4” in the world settings

10

In the video thats what the time of day cycle is set to

11

Ahh, yes - sorry, didn`t notice :see_no_evil_monkey:

12

FORT-1035977’s status has changed to ‘Ready for QA’. A member of the QA department is investigating the issue.

13

Muy bien