[Solved] Warped textures in build - perfect in editor (5.6.1f1)

Unity Engine
1

Hi all,

I have a very strange issue with mesh textures on my latest project. All textures look good in editor and play window, but textures get warped when I build and run the scene. Results are seen below:

Game window:

3096042--233682--editor.jpg
3096042--233682--editor.jpg1885×939 269 KB

Running the build exe:

3096042--233683--runtime.jpg
3096042--233683--runtime.jpg1920×1080 320 KB

Mesh wireframe:

3096042--233684--wire.jpg
3096042--233684--wire.jpg358×624 17.1 KB

Any clue what could cause this issue? I have done dozens of similar projects with imported geometries like this without running into this kind of problem.

EDIT: I managed to find the issue causing the warped textures in build. Reason was Vertex Compression (Player settings / other settings / optimization / Vertex Compression. I disabled the compression for UVs and now it works as intended again.

2

This looks like something I experience in 3D when editing a mesh that already has proper UVs, by welding vertices.
I think the UVs are messed up, but I can’t say why it looks right in the editor.