Method loadSceneIntoCache

contrib/IECoreUSD/src/IECoreUSD/SceneCacheData.cpp:263–576

}

void SceneCacheData::loadSceneIntoCache( ConstSceneInterfacePtr scene )
{
	SceneInterface::Path scenePath;
	scene->path( scenePath );

	// insert internal root into path
	auto currentPath = SceneCacheDataAlgo::toInternalPath( scenePath );

	// store translation to internal path
	m_internalPaths[currentPath] = scenePath;

	SdfPath primPath = USDScene::toUSD(currentPath);

	// reset the collection map for each internal root child
	if( primPath.GetPathElementCount() == 2 )
	{
		m_collections.clear();
	}

	TfTokenVector children;
	SpecData spec;

	// load link as reference
	if( scene->hasAttribute( LinkedScene::fileNameLinkAttribute ) )
	{
		addReference( scene, spec, children );
	}
	else
	{
		// children
		SceneInterface::NameList childNames;
		scene->childNames( childNames );

		for ( auto& child: childNames )
		{
			children.push_back( TfToken( SceneCacheDataAlgo::toInternalName( child ) ) );

			// recurse
			ConstSceneInterfacePtr childScene = scene->child( child );
			loadSceneIntoCache( childScene );
		}
	}

	if ( currentPath == SceneInterface::rootPath )
	{
		spec.specType = SdfSpecTypePseudoRoot;

		// default prim
		spec.fields.push_back( FieldValuePair( SdfFieldKeys->DefaultPrim, SceneCacheDataAlgo::internalRootNameToken() ) );

		// frame per second
		spec.fields.push_back( FieldValuePair( SdfFieldKeys->TimeCodesPerSecond, m_fps ) );

		// figure out start and end frame based on timeSamples in header
		float minTime = std::numeric_limits<float>::max();
		float maxTime = 0;
		bool validTimeSampleRange = false;
		if ( auto sampleTimesDir = m_sceneio->subdirectory( g_sampleTimes, IndexedIO::MissingBehaviour::NullIfMissing ) )