Method writeLocation

contrib/IECoreUSD/src/IECoreUSD/SceneCacheFileFormat.cpp:210–398

}

void UsdSceneCacheFileFormat::writeLocation(
	const SdfLayer& layer,
	ConstSceneInterfacePtr inScene,
	const InternedString & childName,
	SceneInterfacePtr outScene,
	double fps,
	UsdStageRefPtr stage,
	std::set<double> frames
) const
{
	ConstSceneInterfacePtr inChild = inScene->child( childName, SceneInterface::MissingBehaviour::ThrowIfMissing );
	SceneInterfacePtr outChild = outScene;

	if ( childName != SceneCacheDataAlgo::internalRootName() )
	{
		outChild = outScene->child( SceneCacheDataAlgo::fromInternalName( childName ), SceneInterface::MissingBehaviour::CreateIfMissing );

		// static write a single sample.
		if( frames.empty() )
		{
			frames.insert( 0. );
		}

		//transform
		for ( auto& frame : frames )
		{
			try
			{
				outChild->writeTransform( inChild->readTransform( frame / fps ).get(), frame / fps );
			}
			catch( ... )
			{
			}
		}
		// location path
		SceneInterface::Path currentPath;
		inChild->path( currentPath );
		SdfPath primPath = USDScene::toUSD(currentPath);

		if( !primPath.IsAbsoluteRootPath() )
		{
			if( const auto linkedOutScene = runTimeCast<LinkedScene>( outChild.get() ) )
			{
				const auto& root = layer.GetPseudoRoot();
				const auto& primSpec = root->GetPrimAtPath( primPath );

				const auto& referenceListOp = primSpec->GetReferenceList();
				std::vector<SdfReference> references;
				referenceListOp.ApplyEditsToList( &references );

				if ( references.size() > 1 )
				{
					IECore::msg(
						IECore::Msg::Warning,
						"SceneCacheFileFormat::writeLocation",
						boost::format( "Unsupported multiple reference at location \"%s\", writing only the first reference." ) % primPath
						);
				}