aiImage node, how to assign a UVset other then the default one?

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Paolo Giandoso asked · May 20, 2020 at 02:50 PM

aiImage node, how to assign a UVset other then the default one?

Hi all

I am writing a script in Python to convert Maya File Nodes to aiImage Nodes.

I need to use aiImage nodes because there are certain UV modifications you can do with them that the default File Node can not.

One thing I can not seem to figure out is how to transfer the correct UVset linking from a default Maya File node to an aiImage Node. And i can not make it work even by hand.

Can anyone help me figure out how o do it?

I see that in an aiImage Node there is a UVSet slot, where you can write down a string with the UV set, but I have tried inserting the name of the UVset I want (uvSet1, from the object pCubeShape2) and it just does not work, it only renders the default 1 . I tried with and without "", with and without '', I tried writing

pCubeShape2.uvSet[2].uvSetName

pCubeShape2.uvSet[2].uvSet1

uvSet1

'pCubeShape2.uvSet[2].uvSetName'

'pCubeShape2.uvSet[2].uvSet1'

'uvSet1'

"pCubeShape2.uvSet[2].uvSetName"

"pCubeShape2.uvSet[2].uvSet1"

"uvSet1"

Nothing works.

With the Maya File Node it works perfectly using the Windows-->Relationship Editors-->UVLinking-->UV-Centric window, but these commands do not seem to work for the aiImage.

I am probably making some really obvious mistake here. Any idea on what is the correct writing?

Also, what to do if the material is applied to multiple objects? Can you write a list/array of sets?

Thanks

P

texture python uv aiimage

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Answer 1 · 2020-05-20T14:53:25Z

Stephen Blair answered · May 20, 2020 at 02:53 PM

It has to be a uv set on the same object, and you have to use the name that you see in an exported ass file.

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Answer 2 · 2020-05-21T08:58:58Z

Paolo Giandoso answered · May 21, 2020 at 08:58 AM

It has to be a uv set on the same object,

Thanks @Stephen

I should have connected the aiImage to the object's material before :D Now it works!

It only shows up in the renderings, not in the viewport, I noticed, while Maya's default File Node shows up in both.

you have to use the name that you see in an exported ass file.

That was not the case, the ass file showed this name (and so did the python command uvLink (texture = i, query = True))

pCubeShape2.uvSet[1].uvSetName

but to make it work I had to use the name that shows in Maya UV Set Editor instead, which was

uvSet2 , without any ' ' or '' ''

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