The first tests went well. There is a clear improvement over before. The speed has been significantly improved. I will observe how it behaves in the next days.

Sam

The 3 week delay since the previous checkin was due to many, many problems coming up with a method and strategy to speed up Feathering (mostly)in Masking for both OpenGL and X11 software driver variations resulting in the same looking output.  Any additional minor or major testing would be appreciated!