I want the layer's scale info, so I tried this:
float unitscale = usd_metadata(0, '/', 'metersPerUnit');
But I get a zero instead of the right unit. Is this wrong? Sorry if I'm spamming the forum with obvious questions…
Layer attributes from VEX
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- jparker
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- agelosc
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I'm not sure about vex but you can easily get anything with a python node and the pxr USD API. For example
There is already a stage variable when you create a python lop which is the conne ted stage so you can possibly skip the whole Usd.Open() line.
I might have syntax errors but hope it paints a picture. Documentation for the USD python API is a bit tricky but it's worth looking into it.
from pxr import Usd
stage = Usd.Stage.Open(<usd file path>)
unitscale = stage.GetMetadata("metersPerUnit")
There is already a stage variable when you create a python lop which is the conne ted stage so you can possibly skip the whole Usd.Open() line.
I might have syntax errors but hope it paints a picture. Documentation for the USD python API is a bit tricky but it's worth looking into it.
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- rafal
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- jparker
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I see, I also just tried to get the information with Python and got this error:
while something like this works in a parameter expression:
>>> stage.GetObjectAtPath('/').GetAllMetadata() Traceback (most recent call last): File "<console>", line 1, in <module> RuntimeError: Accessed <pxr.Usd.Object object at 0x7f234d02b2f8>
while something like this works in a parameter expression:
pwd().inputs()[0].stage().GetMetadata('metersPerUnit')
Edited by jparker - 2020年11月23日 14:22:29
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- jparker
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- jparker
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