Apple Motion 5.1.1 - Manual (Page 535)

Chapter 14 Particles 535
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Render Particles: A pop-up menu that appears when the 3D checkbox is selected, enabling you
to choose between two rendering methods for the particles:
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In Local 3D (Faster): The default setting, renders particles faster but does not allow for
intersections with layers in the particles group or with layers in other groups. Nor does it
allow particles to cast shadows.
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In Global 3D (Better): This setting allows the particles to intersect with layers in the emitter
group and with layers in other groups. When turned on, your project’s playback performance
is slowed.
Important: For the 3D particles to cast shadows, and be affected by lights and depth-of-field
settings, you must select the 3D checkbox and choose In Global 3D (Better) from the Render
Particles pop-up menu.
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Emission Latitude: Available when the 3D checkbox is selected, this dial specifies the emission
direction (in degrees latitude) of the particles.
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Emission Longitude: Available when the 3D checkbox is selected, this dial specifies the axis of
rotation (in degrees longitude) from which the particles are emitted.
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Depth Ordered: This checkbox becomes available when the 3D checkbox is selected. With
Depth Ordered deselected, particle distribution is completely random, regardless of size. The
result is the possibility of particle arrangements appearing to violate the rules of perspective.
When selected, this checkbox draws the particles in the particle system according to each
particle’s actual 3D position in the project. In other words, particles closer to the camera
appear closer; particles farther from the camera appear more distant.
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