void SceneShape::sceneShapeAttributeNames( const MDagPath &p, SceneInterface::NameList &attributeNames )
{
MDagPath dagPath;
SceneShape *sceneShape = findScene( p, false, &dagPath );
if ( !sceneShape )
{
return;
}
SceneInterface::NameList sceneAttrNames;
ConstSceneInterfacePtr scene = sceneShape->getSceneInterface();
if ( !scene )
{
return;
}
scene->attributeNames( sceneAttrNames );
attributeNames.insert( attributeNames.end(), sceneAttrNames.begin(), sceneAttrNames.end() );
MFnDagNode fnChildDag( dagPath );
if( !fnChildDag.isIntermediateObject() && hasSceneShapeLink( p ) )
{
attributeNames.push_back( LinkedScene::linkAttribute );
}
}
IECore::ConstCompoundObjectPtr SceneReader::computeAttributes( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent ) const
{
ConstSceneInterfacePtr s = scene( path );
if( !s )
{
return parent->attributesPlug()->defaultValue();
}
// read attributes
SceneInterface::NameList nameList;
s->attributeNames( nameList );
CompoundObjectPtr result = new CompoundObject;
for( SceneInterface::NameList::iterator it = nameList.begin(); it != nameList.end(); ++it )
{
// these internal attributes should be ignored:
if( *it == SceneCache::animatedObjectTopologyAttribute )
{
continue;
}
if( *it == SceneCache::animatedObjectPrimVarsAttribute )
{
continue;
}
// the const cast is ok, because we're only using it to put the object into a CompoundObject that will
// be treated as forever const after being returned from this function.
result->members()[ std::string( *it ) ] = boost::const_pointer_cast<Object>( s->readAttribute( *it, context->getTime() ) );
}
return result;
}
IECore::ConstCompoundObjectPtr SceneReader::computeAttributes( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent ) const
{
std::string fileName = fileNamePlug()->getValue();
if( !fileName.size() )
{
return parent->attributesPlug()->defaultValue();
}
ConstSceneInterfacePtr s = SharedSceneInterfaces::get( fileName );
s = s->scene( path );
// read attributes
SceneInterface::NameList nameList;
s->attributeNames( nameList );
CompoundObjectPtr result = new CompoundObject;
for( SceneInterface::NameList::iterator it = nameList.begin(); it != nameList.end(); ++it )
{
// these internal attributes should be ignored:
if( *it == SceneCache::animatedObjectTopologyAttribute )
{
continue;
}
if( *it == SceneCache::animatedObjectPrimVarsAttribute )
{
continue;
}
// the const cast is ok, because we're only using it to put the object into a CompoundObject that will
// be treated as forever const after being returned from this function.
result->members()[ std::string( *it ) ] = constPointerCast<Object>( s->readAttribute( *it, context->getFrame() / g_frameRate ) );
}
// read tags and turn them into attributes of the form "user:tag:tagName"
nameList.clear();
s->readTags( nameList, IECore::SceneInterface::LocalTag );
for( SceneInterface::NameList::const_iterator it = nameList.begin(); it != nameList.end(); ++it )
{
if( it->string().compare( 0, 11, "ObjectType:" ) == 0 )
{
continue;
}
result->members()["user:tag:"+it->string()] = g_trueBoolData;
}
return result;
}
void SceneReader::hashAttributes( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent, IECore::MurmurHash &h ) const
{
ConstSceneInterfacePtr s = scene( path );
if( !s )
{
h = parent->attributesPlug()->defaultValue()->Object::hash();
return;
}
SceneInterface::NameList attributeNames;
s->attributeNames( attributeNames );
SceneInterface::NameList tagNames;
s->readTags( tagNames, IECore::SceneInterface::LocalTag );
if( !attributeNames.size() && !tagNames.size() )
{
h = parent->attributesPlug()->defaultValue()->Object::hash();
return;
}
FileSource::hashAttributes( path, context, parent, h );
bool animated = false;
const SampledSceneInterface *ss = runTimeCast<const SampledSceneInterface>( s.get() );
if( !ss )
{
animated = true;
}
else
{
for( SceneInterface::NameList::iterator it = attributeNames.begin(); it != attributeNames.end(); ++it )
{
if( ss->numAttributeSamples( *it ) > 1 )
{
animated = true;
break;
}
}
}
if( animated )
{
h.append( context->getFrame() );
}
}
void OBJ_SceneCacheTransform::attributeNames( const OP_Node *node, SceneInterface::NameList &attrs )
{
// make sure its a SceneCacheNode
if ( !node->hasParm( pFile.getToken() ) || !node->hasParm( pRoot.getToken() ) )
{
return;
}
const SceneCacheNode<OP_Node> *sceneNode = reinterpret_cast< const SceneCacheNode<OP_Node>* >( node );
/// \todo: do we need to ensure the file exists first?
ConstSceneInterfacePtr scene = OBJ_SceneCacheTransform::scene( sceneNode->getFile(), sceneNode->getPath() );
if ( !scene )
{
return;
}
scene->attributeNames( attrs );
const char *expanded = pExpanded.getToken();
if ( node->hasParm( expanded ) && !node->evalInt( expanded, 0, 0 ) )
{
attrs.push_back( LinkedScene::linkAttribute );
}
}
