Has I have time for the first time of my life on a project, I enjoy it to communicate to you another issue.
I love to use anisotropy on some materials because it brings somthing more.
But few time ago, I discovered that it doesn't spread along different Udims.
Here is the exemple :
Solved! Go to Solution.
Solved by peter.horvath6V6K3. Go to Solution.
It reminds me of this issue, yet the seams became visible though displacement in this case: https://answers.arnoldrenderer.com/questions/17977/c4dtoa-displacement-seam-problem.html
Here's an article, which uses the utility shader connected to Anisotropy tangent (under the Geometry section) to overcome the problem: https://cgrenderdna.blogspot.com/2018/06/arnold-render-anisotropy-tangent-fix-uv.html
You can give it a try to see if it solves your issue.
That works !
Thanks Peter 🙂
It just changes the aniso aspect a bit, but no a big deal.