problem with extruding edges

[Anonymous]

Hi Gentlemen

I need a help.

When I extrude the edge, doesn’t matter how/ with extrude button, shell modifier or shift and drag the edge /, and assign material on new polygons, the material is stretched.

How I can resolve this problem and also, may I normalize the mesh on already damaged details to receive a normal, not stretched mesh, and when I assign material to have not such effect?  

Thanks

[Anonymous]

You can't avoid this, you have to Unwrap UVW after you have modeled your mesh. This is just how modeling works, model first then do the UVs.

Whenever you drag an edge you create new UVs, that have almost no UV space at all. The stretching comes from the few pixels in the tiny space where the new UVs reside. To fix this you need to just UV it.

[Anonymous]

A way around your problem might be to just move the verts with the option 'Preserve UVs' turned on.

Then if you want an edge loop you could add it afterwards.

[Anonymous]

Thanks for addvise 

Preserve UVs didn't work in my case.

I have try it several times.

regards

IP

[Anonymous]

Hi Alecchalmers

I have made a model which consist more than 200 parts.  When I assign the material I was surprised from result. The problem and my mistake was that I start modeling the parts from on and the same plane and I extend it to the needed sizes. Several days I try to equalize it with no result.

I have unwrap it, attach the parts in groups and so on.

In attached file you can see 8 parts with very different checker's map. My very simple desire is to have one and the same size of material structure on all of the parts.

Please help,  Save Our Soul

[Anonymous · Accepted solution]

Unless I misunderstand, your model just needs to be unwrapped. If you've already unwrapped it and it looks like that, then you need to do it again, and probably learn how to UV more effectively.

Flatten mapping should get everything to the same size for you, and then you should just stitch it all together.

[Anonymous]

Thanks 

I will try.

regards