Developer Notes

This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.


Some faces from the UV0 for the texture UV are not used when repacking for the auto-generated Lightmap UV even if the faces are split and visible in the UV0.

Attached example mesh.

Steps to Reproduce

1. Import the attached mesh
2. Use default settings to that the UV is auto generated for the lightmap
3. Add static mesh to a scene and build lighting

Regression: No

Results: Some faces will not be in the repacked UV for the lightmap

Expected: all faces should be repacked whether they are split or not.

Have Comments or More Details?

Head over to the existingAnswerHub thread and let us know what's up.

Login to Vote

Won't Fix
Affects Versions4.
CreatedSep 20, 2016
ResolvedMar 30, 2017
UpdatedApr 27, 2018