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Working with multiple UV sets in Maya

headus 3D tools -> UVLayout -> Updates, Comments, Requests

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SEVEZ

Posts: 1
Joined: 11 Apr 2015

Posted: Sat Apr 11, 2015 3:59 am Post subject: Working with multiple UV sets in Maya

Maya plugin currently doesn't support multiple uv sets, which is obviously not good. Although plugin takes care of construction history (via polyTransfer node), it simply kills all other uv sets on the mesh. So I tried to workaround this limitation - at least for myself and share my solution here. It is not perfect, because the history has to be deleted in order to keep multiple uv sets.

So, in file uvlayout_open.mel comment the line 708:

Code:

// polyTransfer -uv 1 -ao $uvlayout_imported[ $uvlayout_imported_num] $object;

and paste below the following code block:

Code:

select -r $uvlayout_imported[ $uvlayout_imported_num];
string $suv[] = `polyUVSet -q -cuv`;

select -r $object;
string $tuv[] = `polyUVSet -q -cuv`;

select -r $uvlayout_imported[ $uvlayout_imported_num];
select -add $object;

transferAttributes -pos 0 -nml 0 -uvs 1 -suv $suv[0] -tuv $tuv[0] -col 0 -spa 5 -sus $suv[0] -tus $tuv[0] -sm 3 -fuv 0 -clb 1 ;

select -r $object;
DeleteHistory;

The idea is to copy edited uvs only to current uv set using transferAttributes, instead of polyTransfer. This code can be improved by duplicating the target object, transferring attributes to it (to preserve uv sets) and then using polyTransfer node to copy uvs to the original target model (to keep history). But unfortunately I couldn't find a proper way to copy target object without its child nodes. If someone has ideas on how to do it - then would be great to know it ))

Hope it will help someone with similar problems.

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