//---------------------------------------------------------------
void LightExporter::doExport( ExportNode* exportNode )
{
if ( exportNode->getType() == ExportNode::LIGHT )
exportLight(exportNode);
size_t numberOfChildren = exportNode->getNumberOfChildren();
for ( size_t i = 0; i < numberOfChildren; ++i )
doExport( exportNode->getChild ( i ) );
}
//---------------------------------------------------------------
void LightExporter::exportLights ( SceneElement* sceneElement )
{
// If we have a external reference, we don't need to export the data here.
if ( !sceneElement->getIsLocal() ) return;
if ( !sceneElement->getIsExportNode () ) return;
// Check if it is a light.
SceneElement::Type sceneElementType = sceneElement->getType();
if ( sceneElementType == SceneElement::LIGHT )
{
// Get the current dag path
MDagPath dagPath = sceneElement->getPath();
// Check if the current scene element isn't already exported.
SceneGraph* sceneGraph = mDocumentExporter->getSceneGraph();
if ( sceneGraph->findExportedElement ( dagPath ) ) return;
// Check if the current element is an instance.
// We don't need to export instances, because we export the original instanced element.
bool isInstance = ( dagPath.isInstanced() && dagPath.instanceNumber() > 0 );
// If the original instanced element isn't already exported, we have to export it now.
if ( isInstance )
{
// Get the original instanced element.
MDagPath instancedPath;
dagPath.getPath ( instancedPath, 0 );
// Check if the original instanced element is already exported.
SceneGraph* sceneGraph = mDocumentExporter->getSceneGraph();
SceneElement* exportedElement = sceneGraph->findExportedElement ( instancedPath );
if (exportedElement == 0)
{
// Export the original instanced element and push it in the exported scene graph.
if (exportLight(instancedPath))
{
SceneElement* instancedSceneElement = sceneGraph->findElement(instancedPath);
SceneGraph* sceneGraph = mDocumentExporter->getSceneGraph();
sceneGraph->addExportedElement(instancedSceneElement);
}
}
}
else
{
// Export the element and push it in the exported scene graph.
if ( exportLight ( dagPath ) )
{
SceneGraph* sceneGraph = mDocumentExporter->getSceneGraph();
sceneGraph->addExportedElement( sceneElement );
}
}
}
// Recursive call for all the child elements
for ( uint i=0; i<sceneElement->getChildCount(); ++i )
{
SceneElement* childElement = sceneElement->getChild ( i );
exportLights ( childElement );
}
}
