Cant change light map coordinate index in mesh editor
I have a mesh that have 2 uv channels, I want to bake light to it, but i got this problem about uv overlapping... then I want to change mi "light map coordinate index" to 1 instead of 0, and it doesnt let me do it.... and because of this I cant make a build of my scene for testing, any help is really helpfull!!!
Thanks in advance!
This does seem odd. I've not had this problem before.
Can you post a screen shot of your mesh in the mesh viewer with the dropdown of the UV Channels. There should be a channel 0 and a channel 1.
If there is no option for Channel 1 this would explain why it's not allowing you to change the LM index to channel 1.
What version of the engine are you currently using as well?
answered Oct 09 '14 at 06:37 PM
Tim Hobson ♦♦ STAFF
I'm now fighting with this problem still and have done some research. I can't set index 1 or 2 although I can clearly see all of my 3 UVset in the mesh editor. This is happening on a tree model with 4 Lods and 3 UVset. When I imported simple plane with a material and 3 UVsets I was able to set any index. Then I had a look into Epic's Kite demo pack and viola, there's many buggy assets:
Also in Epic's BlueprintOffice level there's:
Is there a rule that UE can use only index 0 or 1 for light map coordinate for assets which have more than two UVsets? BTW. it's happening in 4.12 and 4.11, I haven't test older ones.
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