How to use Smear

Smear transitions between two video clips by blurring the image along a motion axis.

Use the controls to set the length of the blur, its angle and mix with the original picture.

  • Blur sets the length of the blur. Turn right to increase the blur length. Turn left to decrease.
  • Angle sets the direction of the blur in degrees.
  • Direction sets the direction of the blur around the original image. Use this in conjunction with Angle to set the shape of the blur. By default, the blur direction is 0, indicating a blur with the original image in its center. Turn to the left to shift the blur to the left side of the image. Turn to the right to shift the blur to the right (of course, with a changed Angle, the direction may be up and down, etc.)
  • Strong blurs results in faded picture edges. This occurs because the original image is shifted in one direction to create the blur. You can select the background to display behind the edges by clicking on one of the radio buttons in the Background box:
    • First Clip displays the clip entering the transition as background.
    • Second Clip displays the clip leaving the transition as background.
    • Transparent stores the fade level in the alpha channels so alternate images or footage can be placed in the background.
    • Blended displays the mix of the two video clips as background.
  • Cross Fade sets the percentage of the transition that includes a cross fade of the image from first to second clip. Turn to the left for an abrupt switch between images. Turn to the right for an increasingly gradual mix.
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