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ArnoldProceduralAlgo : Support loading of ArnoldProcedural UsdPrims #1528

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Merged
murraystevenson merged 1 commit into from
Apr 9, 2026
Merged

ArnoldProceduralAlgo : Support loading of ArnoldProcedural UsdPrims #1528

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3 changes: 3 additions & 0 deletions Changes
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Original file line number Diff line number Diff line change
@@ -1,7 +1,10 @@
10.6.x.x (relative to 10.6.4.0)
========

Improvements
------------

- USDScene : Added loading of ArnoldProcedural prims as Cortex ExternalProcedural objects.

10.6.4.0 (relative to 10.6.3.1)
========
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6 changes: 6 additions & 0 deletions contrib/IECoreUSD/src/IECoreUSD/ArnoldProceduralAlgo.cpp
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Expand Up @@ -55,6 +55,7 @@ namespace
const pxr::TfToken g_arnold( "arnold" );
const pxr::TfToken g_arnoldAlembic( "ArnoldAlembic" );
const pxr::TfToken g_arnoldNodeEntry( "arnold:node_entry" );
const pxr::TfToken g_arnoldProcedural( "ArnoldProcedural" );
const pxr::TfToken g_arnoldProceduralCustom( "ArnoldProceduralCustom" );
const pxr::TfToken g_arnoldUsd( "ArnoldUsd" );

Expand Down Expand Up @@ -87,6 +88,10 @@ IECore::ObjectPtr readArnoldProcedural( pxr::UsdGeomGprim &gprim, pxr::UsdTimeCo
gprim.GetPrim().GetAttribute( g_arnoldNodeEntry ).Get( &nodeEntry, time );
result->setFileName( nodeEntry );
}
else if( gprim.GetPrim().IsA( g_arnoldProcedural ) )
{
result->setFileName( "procedural" );
}
else if( gprim.GetPrim().IsA( g_arnoldUsd ) )
{
result->setFileName( "usd" );
Expand Down Expand Up @@ -157,6 +162,7 @@ bool arnoldProceduralMightBeTimeVarying( pxr::UsdGeomGprim &gprim )
}

ObjectAlgo::ReaderDescription<pxr::UsdGeomGprim> g_arnoldAlembicReaderDescription( g_arnoldAlembic, readArnoldProcedural, arnoldProceduralMightBeTimeVarying );
ObjectAlgo::ReaderDescription<pxr::UsdGeomGprim> g_arnoldProceduralReaderDescription( g_arnoldProcedural, readArnoldProcedural, arnoldProceduralMightBeTimeVarying );
ObjectAlgo::ReaderDescription<pxr::UsdGeomGprim> g_arnoldProceduralCustomReaderDescription( g_arnoldProceduralCustom, readArnoldProcedural, arnoldProceduralMightBeTimeVarying );
ObjectAlgo::ReaderDescription<pxr::UsdGeomGprim> g_arnoldUsdReaderDescription( g_arnoldUsd, readArnoldProcedural, arnoldProceduralMightBeTimeVarying );

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