Polygonal mask

This mask is defined through a polygon and a feather parameter.
To edit the points of the polygon, you need to use the Edit Mode Allow to edit quickly some layers parameters Read More of the Viewport Preview and edit your content Read More :

The Edit Mode Allow to edit quickly some layers parameters Read More is relevant to the currently selected element in the Element Tree The hierarchical structure of Smode elements Read More , so take care that the polygonal mask is currently selected. Now, press [CTRL] and click in the Viewport Preview and edit your content Read More to create points:

When there are more than two points but the polygonal mask is not closed, it will display a 50% overlay on the whole image. To close the mask, [CTRL] + [CLICK] on the first point:

The points of the polygon can be moved at anytime by dragging them in the Viewport Preview and edit your content Read More . The only necessary thing is to be in Edit Mode Allow to edit quickly some layers parameters Read More with the polygonal mask currently selected.
To animate a polygonal mask, just drag and drop the "polygonal mask points" parameter inside of the Timeline Timelines allow for easy playback, cutting, and editing of video layers, as well as animation of layers and their parameters, editable with the Timeline Editor. Read More . Now each key you'll add on this parameters will concern every point of the mask :


You could also animate all the mask by using Exposed Parameter Allow to control multiple Link Target with a single value Read More on the "Points" parameters.