question

Lulla Bumba avatar image
Lulla Bumba asked ·

MTOA isolate UDIMs

Hello everyone!

I have a workflow question regarding how to properly use UDIMs with mtoa.

Right now I have a character which has 5 UDIM tiles, like this:

Now I need to to some adjustments in the shader using aiLayer which uses a mask.

But in this case I would only need the mask and adjustments to happen on the 1001 tile, since it is makeup on the head. If I just apply it, the maks obviously repeats over the entire body, so is there a way to specify a specific UDIM tile to be used? Of course I could just create further black smaller textures so the mask uses the UDIM format as well but that seems to produce a lot of useless data and is not really nice to handle. Is there any good way for doing it?

Thought I could do it through the "explicit tile" UV tiling mode, but it is still repeating to the arm and other areas.

Thanks for the help!

arnoldmtoashadinglayer
1602690245997.png (221.9 KiB)
1602690572541.png (610.4 KiB)
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

1 Answer

· Write an Answer
Brian Foley avatar image
Brian Foley answered ·

You can use an aiUvTransform node and put wrap U to clamp or color.



aiuvtransform.jpg (106.2 KiB)
Share
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Welcome to the Arnold Answers community.

This is the place for Arnold renderer users everywhere to ask and answer rendering questions, and share knowledge about using Arnold, Arnold plugins, workflows and developing tools with Arnold.

If you are a new user to Arnold Answers, please first check out our FAQ and User Guide for more information.

When posting questions, please be sure to select the appropriate Space for your Arnold plugin and include the plugin version you are using.

Please include images, scene and log files whenever possible as this helps the community answer your questions.

Instructions for generating full verbosity log files are available for MtoA, MaxtoA, C4DtoA, HtoA, KtoA, and Kick.

If you are looking for Arnold Documentation and Support please visit the Arnold Support site.

To try Arnold please visit the Arnold Trial page.

Bottom No panel present for this section.