Summary
When using the Harvest Instances tool from Modelling Mode → XForm, if a static mesh is mirrored using a negative scale, the generated instance will be completely dark.
Other folks have ran into this issue in the full UE5, but were able to find a workaround by enabling nanite on the static mesh assets. However, this “enable nanite” toggle is not available within UEFN. Forum Post here: Mirrored Mesh Turns Dark After Harvesting Instances in UE5 - #3 by OohWowow
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Assets
Steps to Reproduce
- Place several static mesh actors in the world using the same mesh
- Set some of the actors to have a negative component in the scale
- Use the Harvest Instances tool on these mesh actors
- Observe instances harvested from actors with a negative scale have incorrect lighting results
Expected Result
Mesh Instances can be mirrored with working lighting results
Observed Result
Mesh Instances cannot have negative scale without breaking lighting results
Platform(s)
Windows
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Additional Notes
Workaround identified in full UE: Mirrored Mesh Turns Dark After Harvesting Instances in UE5 - #3 by OohWowow