Problem with seams :/

Lether · Jun 2014

Hi polycount !

I'm not very experimented, so i have some little problems during my exploration of differents workflow. For the moment, the thing is the seams f my mesh... I did a quick sketch in zbrush because i wanted experiment zbrush to unreal workflow. I think it's a beginner's probleme, it's why i'm asking to you experimented

So the problem is : i can see the seams of my model when i assign my baked map to the low poly mesh (difuse, occlusion, specular, etc)

I tried to reverse red and green channel... nothing happening, i try rendering in 3dsm max, unreal editor and marmoset toolbag, and the seams always appear.

Thanks a lot for your futur help, i really want to improve myself

Here is screenshots of marmoset toolbag.

Lether · Jun 2014

Anybody? I know it's a beginner's problem and there are lots of documentations...But the fact is i dont find the solution by myself

SuperFranky · Jun 2014

Did you offset your mirrored UV islands?
http://www.renderhjs.net/textools/ use this plugin and watch this video if you don't know how to do that.

[ame="

http://www.youtube.com/watch?v=Tzj7ytMYAG8"]TexTools 3.90 new feature: shift overlapping faces - YouTube[/ame]

Also, do you use Cage for baking your maps? If not, watch this video to see how it can be done

[ame="

http://www.youtube.com/watch?v=4ZESBJPvesA"]How to Bake a Flawless Normal Map in 3ds Max.mp4 - YouTube[/ame]

Did you straighten UV island's edges so they match together perfectly at the seam?

Next time post UV map and normal map screens too, that would be much helpful than guessing.

Lether · Jun 2014

Actually none of my uv pieces are mirrored. You'll see why in the picture i post just after.

To bake the normal, diffuse, etc, i use xnormal and the tool ray distance calculator for the cage (I exported the high poly and his polypaint, i made a low poly and the uv's on max).

And thank you for your help

EarthQuake · Jun 2014

If you baked the normal map in Max, set the tangent space to max (in the mesh properties) or invert the green channel (in photoshop, or in the shader).

Lether · Jun 2014

Well, i tried the render to texture of 3dsmax... and, surprise, in the window of the render... no seams appear on the normal i just baked... So, i try in marmoset and... surprise ! Seams appear... I admit it : i'm lost. (i tried to invert red/green channel in marmoset, there is an option, and it didn't had any changment like if the seams were printed on the mesh itself)

Here's screenshots of the two

stevston89 · Jun 2014

you need to set the tanget space of the mesh to max in marmoset or flip the y/green channel of you normals.

Lether · Jun 2014

Ok, thanks you all for the solutions you gave me. I finally find the solution. With the uvs i think i disturbed the normal of vertex. In 3dsmax, i used the "edit normal" modifier and unify all the normal. SInce that, it works without any problems. Thanks you once again

Problem with seams :/

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