bumpToGloss not supporting UDIMs

[jens_kafitz1]

Hi,
i noticed a bug in vray's bumpToGloss where it doesn't respect the Maya File Node "UV TIle Mode" Attribute.
Below you can see the result of bumpToGloss when using the UDIM Mode.



If instead I set the UV Tile Mode to OFF and manually enter the <UDIM> tag into the filefield, than it works

[hermit.crab]

There should be a warning in the log about this. Quoting the log message from my tests: "Warning: VRayBump2Glossiness does not support textures with tags in the filename"

[Dan Andersen]

I rarely see production assets that are not relying on <UDIM> tiles these days. Is missing support for this a temporary limitation?

[jens_kafitz1]

I only see the warning "Warning: VRayBump2Glossiness does not support textures with tags in the filename" if I manually add the <UDIM> Tag into the File Text Edit Field.
If I set the text edit field to File.1001.exr and then change the Tiling Mode to UDIM, Maya swaps out the the 1001 for <UDIM> however the warning about it no longer appears.

This is because Maya maintains two filename attributes, the original one and the one that the Tiling Mode sets.
I suppose Vray only checks the Main one which remains at File.1001.exr


All that being said, it is a serious limitation as was mentioned by Dan above, not having UDIM Tile support for this makes it rarely usable.

[hermit.crab]

Spoke with the devs about it - it is unsupported, but it will be fixed eventually.