ConstObjectPtr LiveScene::readAttribute( const Name &name, double time ) const
{
if ( !m_isRoot && m_dagPath.length() == 0 )
{
throw Exception( "IECoreMaya::LiveScene::readAttribute: Dag path no longer exists!" );
}
tbb::mutex::scoped_lock l( s_mutex );
if ( !m_isRoot )
{
if( name == SceneInterface::visibilityName )
{
bool visible = true;
MStatus st;
MFnDagNode dagFn( m_dagPath );
MPlug visibilityPlug = dagFn.findPlug( MPxTransform::visibility, &st );
if( st )
{
visible = visibilityPlug.asBool();
}
if( visible )
{
MDagPath childDag;
// find an object that's either a SceneShape, or has a cortex converter and check its visibility:
unsigned int childCount = 0;
m_dagPath.numberOfShapesDirectlyBelow(childCount);
for ( unsigned int c = 0; c < childCount; c++ )
{
MDagPath d = m_dagPath;
if( d.extendToShapeDirectlyBelow( c ) )
{
MFnDagNode fnChildDag(d);
if( fnChildDag.typeId() == SceneShape::id )
{
childDag = d;
break;
}
if ( fnChildDag.isIntermediateObject() )
{
continue;
}
FromMayaShapeConverterPtr shapeConverter = FromMayaShapeConverter::create( d );
if( shapeConverter )
{
childDag = d;
break;
}
FromMayaDagNodeConverterPtr dagConverter = FromMayaDagNodeConverter::create( d );
if( dagConverter )
{
childDag = d;
break;
}
}
}
if( childDag.isValid() )
{
MFnDagNode dagFn( childDag );
MPlug visibilityPlug = dagFn.findPlug( MPxSurfaceShape::visibility, &st );
if( st )
{
visible = visibilityPlug.asBool();
}
}
}
return new BoolData( visible );
}
}
else if( name == SceneInterface::visibilityName )
{
return new BoolData( true );
}
std::vector< CustomAttributeReader > &attributeReaders = customAttributeReaders();
for ( std::vector< CustomAttributeReader >::const_reverse_iterator it = attributeReaders.rbegin(); it != attributeReaders.rend(); ++it )
{
ConstObjectPtr attr = it->m_read( m_dagPath, name );
if( !attr )
{
continue;
}
return attr;
}
if( strstr( name.c_str(), "user:"******"ieAttr_" + name.string().substr(5) ).c_str(), false, &st );
if( st )
{
FromMayaConverterPtr plugConverter = FromMayaPlugConverter::create( attrPlug );
if( !plugConverter )
{
return IECore::NullObject::defaultNullObject();
}
return plugConverter->convert();
}
}
return IECore::NullObject::defaultNullObject();
}
bool HoudiniScene::hasTag( const Name &name, bool includeChildren ) const
{
const OP_Node *node = retrieveNode();
if ( !node )
{
return false;
}
// check for user supplied tags if we're not inside a SOP
if ( !m_contentIndex && node->hasParm( pTags.getToken() ) )
{
UT_String parmTags;
node->evalString( parmTags, pTags.getToken(), 0, 0 );
if ( UT_String( name.c_str() ).multiMatch( parmTags ) )
{
return true;
}
}
// check with the registered tag readers
std::vector<CustomTagReader> &tagReaders = customTagReaders();
for ( std::vector<CustomTagReader>::const_iterator it = tagReaders.begin(); it != tagReaders.end(); ++it )
{
if ( it->m_has( node, name ) )
{
return true;
}
}
// check tags based on primitive groups
OBJ_Node *contentNode = retrieveNode( true )->castToOBJNode();
if ( contentNode && contentNode->getObjectType() == OBJ_GEOMETRY && m_splitter )
{
GU_DetailHandle newHandle = m_splitter->split( contentPathValue() );
if ( !newHandle.isNull() )
{
GU_DetailHandleAutoReadLock readHandle( newHandle );
if ( const GU_Detail *geo = readHandle.getGdp() )
{
GA_Range prims = geo->getPrimitiveRange();
for ( GA_GroupTable::iterator<GA_ElementGroup> it=geo->primitiveGroups().beginTraverse(); !it.atEnd(); ++it )
{
GA_PrimitiveGroup *group = static_cast<GA_PrimitiveGroup*>( it.group() );
if ( group->getInternal() || group->isEmpty() )
{
continue;
}
const UT_String &groupName = group->getName();
if ( groupName.startsWith( tagGroupPrefix ) && group->containsAny( prims ) )
{
UT_String tag;
groupName.substr( tag, tagGroupPrefix.length() );
tag.substitute( "_", ":" );
if ( tag.equal( name.c_str() ) )
{
return true;
}
}
}
}
}
}
return false;
}
