enable antialiasing based on map quality
enable antialiasing based on map quality

* fixes regression introduced in commit d0851c32a1e5ead6155dbe4eea741f5769ffb931

David-Gil/marble-dev,AndreiDuma/marble,oberluz/marble,probonopd/marble,AndreiDuma/marble,tzapzoor/marble,rku/marble,oberluz/marble,quannt24/marble,AndreiDuma/marble,tzapzoor/marble,tzapzoor/marble,quannt24/marble,rku/marble,adraghici/marble,probonopd/marble,adraghici/marble,tzapzoor/marble,Earthwings/marble,probonopd/marble,utkuaydin/marble,utkuaydin/marble,David-Gil/marble-dev,Earthwings/marble,David-Gil/marble-dev,David-Gil/marble-dev,tucnak/marble,tzapzoor/marble,adraghici/marble,tzapzoor/marble,quannt24/marble,tucnak/marble,quannt24/marble,probonopd/marble,tucnak/marble,AndreiDuma/marble,rku/marble,probonopd/marble,tzapzoor/marble,Earthwings/marble,adraghici/marble,tzapzoor/marble,adraghici/marble,rku/marble,oberluz/marble,quannt24/marble,quannt24/marble,rku/marble,probonopd/marble,AndreiDuma/marble,utkuaydin/marble,adraghici/marble,tucnak/marble,oberluz/marble,utkuaydin/marble,oberluz/marble,utkuaydin/marble,probonopd/marble,tucnak/marble,utkuaydin/marble,Earthwings/marble,oberluz/marble,David-Gil/marble-dev,rku/marble,AndreiDuma/marble,Earthwings/marble,Earthwings/marble,tucnak/marble,quannt24/marble,tucnak/marble,David-Gil/marble-dev