Reading PrimVars in material

Is it possible to read primvars in a mdl material? Say I have a a varying color/float primvar I want to use to vary the shading across the surface.
It looked like the “Data Lookup” nodes are there to read primvars but I can not get them to read any varying primvars.

Hi @aslak1! I’ve let the dev team know you have a question. Thanks for reaching out!

Hi @aslak1
Primvar reading is currently in development but not yet available in our Material Graph. The nodes are there but the renderer does not yet the data from USD.

We anticipate this will be available in the near future.

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Hi there,

Just wondering if there has been any update on implementing this?


Hello @dbr! I will ask the dev team if there is any update on this. Thanks for asking!

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I would also love to know if there has been any update to this yet :)

Hi Everyone! Know how much all you watching this thread want this supported. I contacted the development team to get an update. Support for PrimVars is still in development, but they are just cleaning up a few bugs before it is released. It’s almost ready!