Texture stretching at edge even though UV map says it's fine

Question

Why is this happening and how do I fix it? I'm still new and following this anvil tutorial but the texture is stretching over one edge and also sort of looks like I've put a seam where I haven't. It's fine on the other side and both sides are clean blue in the UV map on the right where the edge is selected

Bad side Good side

Answer 1

The distortion in your unwrap may be caused by:

• modifier options: some modifiers (e.g. solidify) can add som distortion to your unwrap
• geometry errors: for example duplicated vertices or overlapping faces
• uvs are not relaxed enough

So, first of all check your geometry. If your model is perfect, then you have two options:

• unwrap again the faces which have the distortion
• pin the borders of your shells and update the uv coordinates (a pinned vertex will keep it's position also if you try to unwrap the entire model)

I would suggest to apply the last option, and to do that:

1. in UV/Image Editor select the border edges of your shells and press P to pin these vertices (now are red colored)
2. select all the shells (with A for example) and then press E, so you will update the uv coordinates for all vertices except the pinned ones