2008

be acted upon by the Delete operator on page 2768 and the Split Selected test
on page 2921 .
Particle System
Particle systems are objects that generate non-editable sub-objects, called
particles, for the purpose of simulating snow, rain, dust, and so on.
The particle system object generates the particles over time. You use particle
systems primarily in animations.
3ds Max provides several built-in particle systems, including Spray and Snow.
Your configuration might have other plug-in particle systems installed.
The Deflector, Gravity, and Wind space warps are for use with particle systems.
(Gravity and Wind also work with Dynamics.)
3ds Max also offers an event-driven particle system called
Particle Flow on
page 2713 .
Particle System (Particle Flow)
A particle system in Particle Flow consists of all
flows on page 7787 defined in
Particle View, as well as parameters defined for all
Particle Flow sources on
page 2748 . In effect, it's the totality of settings in Particle Flow.
PASS File
A PASS (.pass) file saves the result of a single
mental ray rendering on page
6039 pass. You can create a final rendering by merging multiple passes. The
PASS file format includes Z-buffer information to aid in merging passes.
Controls for creating and merging PASS files are on the Render Scene dialog
> Processing Panel > Translator Options rollout on page 6122 .
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