3ds to UDK corrupted UVs

Kimon

Hey all! This will be my first post here and I really hope someone can help me out.

I've been following various tutorials about getting your UV's and lightmap UV's from 3ds to UDK and I can't understand what im doing wrong.

Here is my UV Channel 1 in 3ds:



And here is the Channel 2 lightmap UV:



Nothing is inverted or overlapping and everything is
within 0-1 UV space.

However, after exporting it in .ASE and importing it in UDK

Here is UV Channel 0 (1 in 3ds) :




And here is UV Channel 1 (2 in 3ds) :



As you can see, beyond messed up.
If I try to bake light anyways, I get the "Wrapping UVs" error and mesh turns black.

Im going crazy here. Can someone please help me out?

JamesWild

Check your ASE exporter panel; the mnemonic I've always been taught for UDK export is "2-2-1"; that is, the first group box should have the first two checkboxes ticked, the second the first two, the last only one checkbox. This exports everything a static mesh really needs and nothing it doesn't.

cptSwing

You should really optimise your lightmap uv's man.

Mark Dygert

I haven't used ASE for a while, have you tried it with FBX?

Kimon

Thanks for the input guys but I think I managed to fix it.
Seems like it's working now after I Reset Xform.
Had no idea that resetting xform was that crucial!

@cptSwing
Haha, I usually do a better work with uv's, this was more of a test. but thanks

cupsster

xform reset IS pretty important before export..
Edit: Don't known about UDK but in Unity if you have non-uniform scale for example causes mesh to not batch and additional VBOs submits...

Adij

I had this problem w while ago:
1. Be sure that u have ungrouped meshes before export
2. in fbx: uncheck import as one mesh