Defocus, Directional blur – Apple Motion 5.1.1 User Manual

Page 760

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Chapter 19

Filters

760

Defocus

Mimics the out-of-focus effect that occurs through a real-world camera lens. The Defocus filter
blurs an image while creating realistic lens artifacts that mimic the aperture shape in brighter
areas of the image. The shape of the blur can be customized.

Tip: Use this filter when you are trying to blur an image to match video or stills shot with a
camera. For example, if you key a woman standing in front of a blue screen, and you intend
to place a background image behind her to make it look like she’s standing in a valley with
mountains in the background, use the Defocus filter instead of a Gaussian Blur to create a
realistic depth-of-field effect for the mountains in the distance.

Original image

Defocus filter applied

Parameters in the Inspector

Amount: Sets the radius of the defocus.

Gain: Sets the amount of gain applied to the high luminance areas.

Shape: Sets the shape of the lens aperture to Circle or Polygon.

Sides: Sets the number of sides of the lens aperture, if Shape pop-up menu is set to Polygon.

Rotation: Sets the angle of rotation of the polygonal lens aperture, if Shape is set to Polygon.

Aspect Ratio: Sets the aspect ratio of the lens aperture.

Crop: Sets whether the blur is cropped at the object’s original border.

Mix: Sets the percentage of the original image to be blended with the blurred image.

Directional Blur

Blurs an object along a specific angle. This filter creates a blurred streaking effect.

Note: The more filters you use in a project, the more you impact the performance of Motion.

Original image

Directional Blur filter applied

Parameters in the Inspector

Amount: Sets the radius of the blur. Drag the arrow onscreen control to adjust the amount
(and angle) of the blur in the Canvas.

67% resize factor

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