UDIM support

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I don't seem to find how mantra surface references UDIM texture maps, as I saw UV layout has support for UDIM I am imagining there will be support across the board??

thanks
jb
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Very interested as well if this is supported out of the box in the shaders.

Rob
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Maybe this can help…not sure though.

https://www.youtube.com/watch?v=cUtXI7NKgJc [youtube.com]
Werner Ziemerink
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At this point the UV Layout SOP is the extent of the out-of-the-box support. It's definitely on the radar, but as always I can't speak to timelines. Let the “+1”s begin…

Mark
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+1
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Werner Ziemerink
Maybe this can help…not sure though.

https://www.youtube.com/watch?v=cUtXI7NKgJc [youtube.com]

Thanks Werner, nice tutorial. The eternal Houdini “curse” - of course you can do it in Houdini, you just have to build it yourself

Mark
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I found an example from martinkindl83 that seems to work quite nicely, in two forms actually and although on the way found out also a bug in H14 the solution seems really nice.

https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=28517&start=25 [sidefx.com]

Use it in H13 and convert the expression on the Attribute Create SOP to its simpler one line form and it will work fine.


This should clearly be a priority, UDIMs are everywhere nowadays and having to put so much effort into something that should be pretty much automatic kills the flow.

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jb
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Great news! In latest build 14.0.328 in “Texture VOP” node added support of UDIM. You need to check “UDIM Filename Expansion”.
Than if you have UDIM textures like “pic.1001.tif” in filename need to enter “pic.%(UDIM)d.tif”.
Cheers.
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so now its only to go in and rewrite my supershader (posted on forum) i did for UDIM
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Awesome !

Rob
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unfortunately there is still bug in prebuild mantra shader, that i was experiencing with my own udim supported shader.

On bump and displacement with UDIMs on is asking for non existing UDIMS and generates huge amount of IO operations.

Im trying to localize the node that needs to be fixed, but no luck so far.


If building custom shader it works fine - as the previous udim support i did build.
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if someone wants to know how to fix it (bump asking for non existing textures), let me know.

for now i did list it as bug and lets see if they will fix it.
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Hi Martin,
could you post bug id here please?
Thanks
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I send the description and scene to my colleague and he did post it.
I can ask him Monday and post it in here.
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Nice to see your great supporting. I have enjoyed with this forum.
I'm new here.
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Just submit the bug at the top of the site menu under support. :shock:

Rob
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Side Effects Support Ticket: #27211
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it was fixed for H14.341
just got email
Edited by - 2015年5月22日 18:55:48
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just for anyone checking this in a recent future, I think you mean H14.341
Javier Meroño
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Correct. Edited
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