Seams issues

tony 84

Hi everyone!

I'm modelling a dinosaur but when I import the mesh into marmoset seams appear.
What it could be?

Adam Chilton

Are these UV seams? I'm not too familiar with Marmoset, but the lighting may have some dependency on UV's.

Wozner

It also could be normal map seam or UV map, please provide UV, diffuse and normal map here

tony 84

Wozner wrote: »

It also could be normal map seam or UV map, please provide UV, diffuse and normal map here

https://imageshack.com/i/ipSD7ZCnj

https://imageshack.com/i/exCfZTdYj

as you can see seams appear when normals are not yet applied and they matches with uv borders.

https://imageshack.com/i/f0rBkaVNj

https://imageshack.com/i/ipbu7ZwGj

trebor777

Check your Smoothing groups in 3dsmax. Select all faces, autosmooth in editpoly.
Reexport.
Check in marmoset

Adam Chilton

The issue is that you have flipped UV's I think. Looking at the UV layout, the left hand side and right hand sides of what I imagine is the body, look identical. The two different sides of the body should look like mirrored versions of each other.

Try flipping the UV's so that they are in the correct direction. In Maya you have a checkbox to shade flipped UV's in red, not sure if you can do this, however from looking at your UV layout, I'm sure this is the problem.

Adam Chilton

BTW if you flip your UV's, your normal map will not work properly so you will have to re-bake it.

EarthQuake

Make sure you are exporting mesh normals if using obj out of max.

If you baked your normal map in max, you might need to invert the green channel of the normal map.

You still may get some issues due to differences in tangent space. Toolbag 2 supports max's tangent space and will give you better results.

tony 84

Adam Chilton wrote: »

The issue is that you have flipped UV's I think. Looking at the UV layout, the left hand side and right hand sides of what I imagine is the body, look identical. The two different sides of the body should look like mirrored versions of each other.

Try flipping the UV's so that they are in the correct direction. In Maya you have a checkbox to shade flipped UV's in red, not sure if you can do this, however from looking at your UV layout, I'm sure this is the problem.

I fixed almost every seams just by selecting 2export smoothing groups2 in export options.

Now I get just few seams under the neck

https://imageshack.com/i/id9UNtxGj

Adam Chilton

Hmm, it's strange that you don't get any issues due to the UV's not being mirrored. Possibly Marmoset know how to deal with that.

I can't really see any seams under the neck in the image you provided, so it's difficult to advise what to try. Glad you solved your other issue though

tony 84

Adam Chilton wrote: »

Hmm, it's strange that you don't get any issues due to the UV's not being mirrored. Possibly Marmoset know how to deal with that.

I can't really see any seams under the neck in the image you provided, so it's difficult to advise what to try. Glad you solved your other issue though

Seam is almost invisible

https://imageshack.com/i/eytOFCBzj

EarthQuake

Adam Chilton wrote: »

Hmm, it's strange that you don't get any issues due to the UV's not being mirrored. Possibly Marmoset know how to deal with that.

I can't really see any seams under the neck in the image you provided, so it's difficult to advise what to try. Glad you solved your other issue though

Having uvs backwards shouldn't be an issue in TB, especially TB2 where we added a bunch of UV improvements. If it is, get me an example mesh and I will bug log it. =D

tony 84

UP finally

https://imageshack.com/i/f0Pj5fXkj

tony 84

Color improvements

https://imageshack.com/i/kp94sGa9j

tony 84

Almost finished, any suggestion?

12.7k tris

https://imageshack.com/i/iq1al2nyj