Help with Move and Sew UV action

# 1 11-01-2016 , 09:31 AM

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Join Date: Jan 2016

Posts: 3

Hi, i'm relitively new to Maya and using it as it's part of my uni course. I'm having an issue with UV mapping, specifically with moving and sewing UV edges.

user added image

https://imgur.com/m3zP1eA

Here are the two edges i am trying to move and sew together. I am working along materials that the university has provided, saying that the result of the move and sew UV action should result in this:

user added image

https://imgur.com/LKinWCu

However, when i do the move and sew UV action i end up with this:

user added image

https://imgur.com/sBJJ3Fv

So i'm wondering what i'm doing wrong and how i can get the result that the tutorial wants me to? Thanks for all and any help in advance.

(Also advice on how to make the pictures actually show up in the thread would be appreciated.)

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# 2 11-01-2016 , 01:13 PM

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Join Date: Jul 2012

Posts: 112

Hi,
First of all for the basics, with move and sew you join the edges which belong to the same UV's. It can be that the UV edges are on different locations in the UV editor but at the object its one edge only. Because of the required texturing you may need to join these edges to avoid having a break or seem in the texture. This means of course you can move and sew only UV edges which belong together.
I am not 100% sure whats your issue there, but for me it seems the edges you try to join aren't belonging together and an other UV edge gets attached.

Regarding the pictures it works with the advanced reply under manage attachments. Right now I am having issues too and my browser crashes, when I try to upload pictures.

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# 3 12-01-2016 , 12:25 PM

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Join Date: Jan 2016

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https://imgur.com/dF1lhvq

user added image

https://imgur.com/TZKjGk5

It is one edge that the tow faces share though, that's why i'm not getting why it won't produce the same result that the tutorial wants me to.

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# 4 12-01-2016 , 04:08 PM

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Join Date: Jul 2012

Posts: 112

I guess you are doing automatic projection for the UV's?
It might work different in the tutorial because of a different way of projection, so you might get a different arrangement of the UVs and edges.
Are you doing right click and choosing "edge" before doing the move and sew? In your second picture it looks like you have the complete shell marked.

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# 5 13-01-2016 , 12:26 PM

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Join Date: Jan 2016

Posts: 3

Yeah, i am using the edge select tool to use move and sew, just highlighted the faces to show they are next to each other on the model. Automatic Projections? Sorry, i don't know what that is, i'm really new to using Maya.

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# 6 13-01-2016 , 05:15 PM

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Join Date: Jul 2012

Posts: 112

There are ways to come to the UV's. Easiest way is simply to mark the object and open the UV editor. You see an arrangement of the UV's and faces but may be over laid. A better way is to us a type of projection under "UV" while marking the object: "Automatic", "Planar", "Cylindrical" or "Spherical" depending on the shape of your object. It will give you a better result. This actually should be part of the tutorial to explain this and when to choose which way. Depending on the way of projection you may get a different arrangement of the UV's.
For a cube like in your case a automatic projection is applicable. But you could mark also each face and make a planar projection and then you can assemble the 6 sides in the UV-editor. Check out also Youtube tutorials for UV for example a fast one: https://youtu.be/DjqjdEoaItk

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Help with Move and Sew UV action

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