How to make a mask anti-aliased? I created 2 masks in Blender's mask editor. In 1 frame of my video I created the initial mask points by using Ctrl-Click. In the other frames, I dragged them to the correct position. In the node editor, I used the &quot;Feather&quot; option for both of them (but I don't see any difference with or without it).
Afterwards, I noticed that one mask is anti-aliased, while the other isn't:
     
How can I make both masks anti-aliased?
I found the answer to the question myself.
I had drawn the first mask in a counter-clockwise direction, and the second one in a clockwise direction. That caused the second one to look different (feathering at the inside instead of the outside).
The solution was to right-click the mask and choose &quot;Switch Direction&quot;.