Problen with uv in unreal

Community Community & Industry Discussion
1

Sooo i’m geting a crazy problem there.

In maya the model are ok, the uv are ok, i export without any erro.

In substance painter i paint, and export, without any erro again.

But in unreal, this happens:

> any erro msgs when i import the model for unreal.

About the multi-material-tower i use the same way to make that torre and works just well.

Any ideia what happen there guys?

Thanks.

2

You might have some inverted normals on your model. Apply a material to it in Maya and view it using viewport 2.0. Black faces indicate normals that need to be flipped.

3

In maya is ok with the textures too.

4

This is weird. I had a similar problem when a model wasn’t triangulated properly. I mostly explorted quads and would get this issue. When I triangulate it before exporting, the issue disappears. Your last screenshot indicates partly triangulation and partly quads.

5

Some loose faces, or unwelded vertices?
I never triangulate before export in Blender, bad experience with that(materialbased).
At some parts it is looking like a second object glitching through.
In blender i get sometimes similar results, when using mirror modifier, or an array with marginal offset.

7

Check your UV’s and their channels in UE4. In the edit mesh screen overlay the UV’s. By default texture UV should be in UV Channel 0 and lightmap UV in UV Channel 1.

8

So i see something weeeiiirrdd.

The UV Channel 1 is the right UV from the object.

But the UV channel 0 is… what… i never see this UV before.

9

Soooooooooooooo i see what i did wrong, because some random-i-dont-know-how-hell-i-make-that i made one second UV in maya and the painter show that uv but the unreal import both giving base to the first one.

fasfdsa.png
fasfdsa.png800×600 40.7 KB

Well its working, thanks a lot guys. :slight_smile:

10

make 1 to 0 and you fix it.