Line art – Apple Motion 4 User Manual

Page 1041

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Brightness:

Sets the level of brightness of the object.

Ambient:

Sets the amount of ambient light hitting the object.

Highlight Brightness:

Sets the amount of brightness applied to the highlights of the

object.

Highlight Sharpness:

Sets the degree of sharpness applied to the highlights of the object.

Light Rotation:

Sets the angle, in degrees, at which the ambient light hits the object.

Depth:

Sets the amount of depth between the flat and raised areas.

Height Map:

An image well that displays a thumbnail of the height map chosen. If present,

the height map is used to determine the flat and raised areas of the object.

Map Channel:

Sets the channel from the object that is used to determine the flat and

raised areas of the image. If a height map is present, the channel is selected from the
height map. Otherwise, values can be selected from the following: Luminance (default),
Red, Green, Blue, or Alpha.

Stretch To Fit:

Sets whether the Height Map is stretched to fit the dimensions of the

filtered object. By default, this checkbox is selected. If it is deselected, the following four
parameters are available to edit:

Height Map X Scale: Sets the scaling used to determine the width of the Height Map.

Height Map Y Scale: Sets the scaling used to determine the height of the Height Map.

Height Map X Offset: Sets the amount of offset used to position the Height Map

horizontally.

Height Map Y Offset: Sets the amount of offset used to position the Height Map vertically.

Mix:

Sets what percentage of the original image is blended with the filtered image.

HUD Controls
The HUD contains the following controls: Softness, Brightness, Ambient, Highlight
Brightness, Highlight Sharpness, Light Rotation, Depth, Height Map, Map Channel, and
Stretch To Fit.

Line Art

Performs an edge detection of the high-contrast borders between regions of differing
brightness in an object, tracing the edges and reducing all other detail in the image to
the color specified by the Paper Color parameter. The color of the resulting outline can
also be customized. The result is to simulate the look of a line drawing on paper.

1041

Chapter 16

Using Filters

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