Imath::Box3d LiveScene::readBound( double time ) const
{
tbb::mutex::scoped_lock l( s_mutex );
if( fabs( MAnimControl::currentTime().as( MTime::kSeconds ) - time ) > 1.e-4 )
{
throw Exception( "IECoreMaya::LiveScene::readBound: time must be the same as on the maya timeline!" );
}
if( m_isRoot )
{
MDagPathArray paths;
getChildDags( m_dagPath, paths );
Imath::Box3d bound;
for( unsigned i=0; i < paths.length(); ++i )
{
MFnDagNode dagFn( paths[i] );
Imath::Box3d b = IECore::convert<Imath::Box3d, MBoundingBox>( dagFn.boundingBox() );
if( b.hasVolume() )
{
bound.extendBy( b );
}
}
return bound;
}
else if( m_dagPath.length() == 0 )
{
throw Exception( "IECoreMaya::LiveScene::readBound: Dag path no longer exists!" );
}
else
{
MFnDagNode dagFn( m_dagPath );
Imath::Box3d ret = IECore::convert<Imath::Box3d, MBoundingBox>( dagFn.boundingBox() );
Imath::M44d invTransform = IECore::convert<Imath::M44d, MMatrix>( dagFn.transformationMatrix() ).inverse();
return Imath::transform( ret, invTransform );
}
}
