Rotate Effect (Rotate Effect) rotates the video orientation to the Target angle (in circular degrees). As the image rotates its edges will likely move outside the Screen boundaries and get clipped. To avoid clipping, combine Rotate Effect with a Scale Effect. For example, Scale the size to 0.5 (50% size). Then as it rotates it should not move outside the Screen bounds. Translate Effects can also be useful here to move the video within the Screen.
Rotatation is performed using the on the Origin Point as the pivot point. An Origin Point centered on the image (X,Y = 0.5,0.5) is generally the best choice. See the Origin Point section for details the values.
In Figure 1, Origin Points (red dots based on X,Y values below the diagram) affect the way the image is rotated. Light blue rectangle is the image unrotated. Cyan rectangle is the image rotated by 45 degrees. Arrows show the direction of rotatation.
As a productivity aid, you can save the entire effect (all values on all tabs) as a Favorite with the Save as Favorite Values button. Then you can set all values of an effect from the Favorite values using the Set from Favorite Values button. Separate favorites are saved for each type of effect (Rotate, rotation, etc).
This example shows a video rotated to 45 degrees.