5.5

512Motion User Guide
• Line: Particles emerge from a line. Using the onscreen controls (with the Adjust Item
tool selected in the canvas toolbar) or controls in the Properties Inspector, you can
specify the length and location of the line. In the Inspector, you can set a specific
number of points where particles emerge. This emitter shape is useful for creating
sheets of particles that cascade over a wide area.
• Rectangle: Particles emerge from a rectangle along its edge, or in a tile-fill or
random-fill pattern. Using the onscreen controls (with the Adjust Item tool selected
in the canvas toolbar), you can specify the size and location of the rectangle:
Drag the corners to adjust width and height; drag edges to adjust width or height
independently. Choose different rectangle patterns using the Arrangement
parameter (described below). In the following image, the Arrangement parameter is
set to Outline.
Use modifier keys to more precisely manipulate the corners of the Rectangle
onscreen controls (with the Adjust Item tool selected in the canvas toolbar):
• Option: Adjustments to size are scaled uniformly, with the anchor point remaining
fixed.
• Shift: Adjustments to size are made proportionally.