Apple Motion 4 User Manual
Page 639

Important:
When the 3D checkbox is selected, In Global 3D (Better) must be selected
from the Render Particles pop-up menu in order for the 3D particles to cast shadows
and to be affected by lights.
Emission Latitude:
Available when 3D is turned on, this control specifies the emission
direction (in degrees latitude) of the particles.
Emission Longitude:
Available when 3D is turned on, this control specifies the axis of
rotation (in degrees longitude) from which the particles are emitted.
Depth Ordered:
Available when 3D is turned on. When activated, this checkbox draws
the particles in the particle system according to each particle’s actual 3D position in the
project. In other words, particles that are closer to the camera appear closer; particles
that are farther away from the camera appear more distant.
Depth Ordered on
Depth Ordered off
Face Camera:
A checkbox that becomes available when 3D is turned on. When activated,
the particle system always faces the active scene camera. For more information on cameras,
see
Render Order:
A pop-up menu that determines whether new particles are drawn on top
of or underneath particles that have already been generated. There are two options:
• Oldest First: New particles appear on top of older particles.
• Oldest Last: New particles appear underneath older particles.
Interleave Particles:
Turning this checkbox on mixes particles generated from multiple
cells together. Turning this checkbox off layers particles in the same order as the cells
that generate them.
Note: This option has no effect with particle systems containing only one cell. Leaving
this option off speeds rendering with multiple cells.
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Chapter 11
Working with Particles