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Overlapping UVs Error, Every Asset!?

Currently working in UE 4.0.1. Been using UE3 / UDK for 4 years and am quite particular about lightmaps. But this one stumps me!

Currently the issues are present in every asset. Tried to correct the issue using the following methods:

  • Imported FBX with 2 UV sets

  • Imported FBX with 1 UV set, can not find an option to use the same UVs as Channel 0

  • Imported FBX with 1 UV set, generated unique UVs in Unreal

  • Imported FBX with 1 UV set, generated unique UVs in Unreal using Channel 0 layout

I have tried importing the FBX with various UVs, either made my self from UV1, reunwrapped, flatten mapped, collapsed with various settings.

Someone must have encountered this, does anyone have any solution! The best solution I have found is to make it a movable object!

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asked Mar 25 '14 at 10:32 PM in Using UE4

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prtofdacrowd
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Workaround:

1) Export the FBX from 3D application with both sets of UVs (Texture and Lightmap)

2) Using the Import option, select 'Skeletal Mesh'

3) This import should flag warnings because there was no bone hierarchy found. Dismiss this.

4) Using the Import option, select 'Static Mesh' on the same FBX

5) You should find now that there is no overlapping UVs and lightmaps bake correctly!

Hope this helps, let me know!

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answered Mar 26 '14 at 11:20 AM

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prtofdacrowd
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