USDScene : Fix timecodes used by writeBound()

Author: johnhaddon

Changes

@@ -4,7 +4,9 @@
 Fixes
 -----
 
-- USDScene : Fixed timecodes used when writing animated attributes.
+- USDScene :
+  - Fixed timecodes used when writing animated attributes.
+  - Fixed timecodes used when writing animated bounds.
 
 10.5.12.0 (relative to 10.5.11.0)
 ========

contrib/IECoreUSD/src/IECoreUSD/USDScene.cpp

@@ -1008,7 +1008,7 @@ void USDScene::writeBound( const Imath::Box3d &bound, double time )
 	extent.push_back( DataAlgo::toUSD( Imath::V3f( bound.max ) ) );
 
 	pxr::UsdAttribute extentAttr = boundable.CreateExtentAttr();
-	extentAttr.Set( pxr::VtValue( extent ) );
+	extentAttr.Set( pxr::VtValue( extent ), m_root->timeCode( time ) );
 }
 
 void USDScene::writeTransform( const Data *transform, double time )

contrib/IECoreUSD/test/IECoreUSD/USDSceneTest.py

@@ -2826,6 +2826,24 @@ def testWriteAnimatedAttribute( self ) :
 		for t in ( 0.0, 0.5, 1.0 ) :
 			self.assertEqual( child.readAttribute( "user:test", t ), IECore.FloatData( t ) )
 
+	def testWriteAnimatedBound( self ) :
+
+		fileName = os.path.join( self.temporaryDirectory(), "test.usda" )
+		root = IECoreScene.SceneInterface.create( fileName, IECore.IndexedIO.OpenMode.Write )
+		child = root.createChild( "child" )
+
+		for t in ( 1.0, 1.5, 2.0 ) :
+			child.writeObject( IECoreScene.SpherePrimitive( t ), t )
+			child.writeBound( imath.Box3d( imath.V3d( -t ), imath.V3d( t ) ), t )
+
+		del child, root
+
+		root = IECoreScene.SceneInterface.create( fileName, IECore.IndexedIO.OpenMode.Read )
+		child = root.child( "child" )
+
+		for t in ( 1.0, 1.5, 2.0 ) :
+			self.assertEqual( child.readBound( t ), imath.Box3d( imath.V3d( -t ), imath.V3d( t ) ) )
+
 	def testShaders( self ) :
 
 		# Write shaders