Apple Motion 2 - Manual (Page 654)

654 Chapter 9 Using the Replicator
Emission Alpha Cutoff (Image): When the Image Source object contains an alpha
channel, this slider defines the minimum opacity value that is necessary to create an
element at that point on the source image. For example, when set to 25 percent,
elements only appear at points where the alpha value of the image is equal to or
greater than 25 percent opacity. The lower the Emission Alpha Cutoff value, the more
cells appear. In order for this parameter to be effective, the alpha channel needs to
have areas of varying transparency.
Points: Specifies the number of evenly-distributed elements points along the edge of
the shape. This parameter is available when the Arrangement is set to Outline or
Random Fill.
Offset: Adjusting this value moves the elements along the edge of the shape. This
parameter is available when the Arrangement is set to Outline.
Build Style: When the Arrangement is set to Outline, this parameter specifies the
direction in which the elements are placed along the edge of the shape. When
Arrangement is set to Tile Fill, and Origin is set to either Upper Left, Upper Right, Lower
Left, or Lower Right, this parameter specifies how the elements are built over the
pattern.
When Arrangement is set to Outline, the Build Style options are:
• Clockwise: Places the elements along the shape in a clockwise direction.
• Counter Clockwise: Places the elements along the shape in a counter clockwise
direction.
When the Arrangement is set to Tile Fill, the Build Style options are:
• Across: Builds the elements across the pattern in the direction specified by the
Origin parameter.
• By Row: Builds the elements over the pattern by row.
• By Column: Builds the elements over the pattern by column.
Shape with a feathered edge
used as Image Source Emission Alpha Cutoff set to 75
percent Emission Alpha Cutoff set to 30
percent
01112.book Page 654 Sunday, March 13, 2005 10:36 PM