(High bit-depth) The Radial Wipe effect reveals an underlying clip using a wipe that circles around a specified point.

Start Angle

The angle at which the transition starts. With a start angle of 0°, the transition starts at the top.

Wipe

Specifies whether the transition moves clockwise or counterclockwise, or alternates between the two.

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Original image (left), and with effect applied (center and right)