Imath::Box3f SceneReader::computeBound( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent ) const
{
ConstSceneInterfacePtr s = scene( path );
if( !s )
{
return Box3f();
}
if( s->hasBound() )
{
const Box3d b = s->readBound( context->getTime() );
if( b.isEmpty() )
{
return Box3f();
}
return Box3f( b.min, b.max );
}
else
{
return unionOfTransformedChildBounds( path, parent );
}
}
void SceneReader::hashBound( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent, IECore::MurmurHash &h ) const
{
SceneNode::hashBound( path, context, parent, h );
ConstSceneInterfacePtr s = scene( path );
if( !s )
{
return;
}
refreshCountPlug()->hash( h );
if( s->hasBound() )
{
s->hash( SceneInterface::BoundHash, context->getTime(), h );
}
else
{
fileNamePlug()->hash( h );
h.append( &path.front(), path.size() );
}
}