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HdMtlx does not work with Houdini's mtlx UsdShade graphs #1658

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hshakula opened this issue Oct 17, 2021 · 4 comments
Closed

HdMtlx does not work with Houdini's mtlx UsdShade graphs #1658

hshakula opened this issue Oct 17, 2021 · 4 comments

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@hshakula
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Description of Issue

Using HdMtlxCreateMtlxDocumentFromHdNetwork on HdNetwork when UsdShade graph is constructed from Houdini's Mtlx nodes leaks MaterialX::Exception due to elements with duplicate names.

Steps to Reproduce

  1. Set up material with 2 or more Mtlx nodes in Houdini
  2. Pass resulting HdNetwork to MaterialX::Document using HdMtlxCreateMtlxDocumentFromHdNetwork
@spiffmon
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Hi @hshakula , it would be helpful if you could attach a usda file that illustrates the problem, which would help identify whether it is actually a Solaris issue or an Hd issue.

Thanks!

@hshakula hshakula mentioned this issue Oct 18, 2021
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@hshakula
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mtlxTest.zip

My proposed solution is #1659

@jilliene
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Filed as internal issue #USD-6972

@hshakula
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Fixed in #1659

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@spiffmon @hshakula @jilliene