Mini Triangle Shadow Artefacts On Character Garment / Mesh

Development Asset Creation
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1

Hi All,

I’m having trouble trying to rid my garment from mini triangle shadow artefacts to no avail. Please refer to the attached.

Screenshot 2026-03-30 at 11.28.47 AM
Screenshot 2026-03-30 at 11.28.47 AM860×1376 83.7 KB

I made my garment using marvelous designer, converted it to quads (optimised) before exporting as obj to blender, then from blender, merge vertices, add thickness using solidify, etc, before exporting as FBX to UE.

Was wondering was is causing it and if anyone had similar experience and solved it, please share.

Thank you.

2

Could it be Z-fighting? Perhaps you have multiple meshes superposed on one another; potentially coexisting LODs.

3

Don’t think that is the case. I’m still at testing phase, so there’s no LODs on the garment.

4

What about deactivating recompute normals?

5

Enabling Megalight using Virtual Shadow Map and disabling Distance field Shadow eliminates the shadow artefacts for me. Yay!

6

Glad to hear you fixed, and thanks for posting your solution.