UV Map Distortion

[Micha]

I afraid your problem is caused by welded seams/edges …

Texture image wrong after weld

It remember me on an old problem. So far I understand there are different ways to handle meshes and the Rhino system is quite limited. Some years before Michael from MoI3D explained it at post no 3 of this thread: http://moi3d.com/forum/messages.php?webtag=MOI&msg=2453.1 I don’t know so much about this topic but maybe the old thread helps someone to find a way to change the handling of mesh data at Rhino. The old thread is about shading normals at welded edges, but I think it’s the same probl…

If I remember me right is caused by connected mesh edges are sharing the same UV coordinates. Here a simple example. I would be glad to see a solution too.