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714 Chapter 13: reactor
In reactor, you define the effect of constraints by
the specifying and manipulating two constraint
spaces (page 2–725).Limits,suchasminimum
and maximum rotation ang les, are defined and
displayedaroundthosespaces,whichyoucan
modify using sub-object manipulation. reactor
provides tools for automatically aligning and
manipulat ing those spaces.
Stor age a nd Access of Colli sion
Infor mation
reactor can store information of all rigid body
collisions occurred during the simulation. The
information includes the objects involved, the
pointofcollision,andtherelativevelocityduring
collision, and can b e used by animators to generate
particles or ot her effects, trigger sounds, etc. You
can access the information via MAXScript and
save it to a text file.
For more information, see Storing and Accessing
Collisions (page 2–774).
Support for Gl obal Colli sions
In reactor, you can enable or disable collisions
globally instead of inside the Rigid Body Collection
(page 2–723) . The sof tware stores disabled
collisions inside the reactor Utility ( page 2–805).
You can disable collisions not only for rigid bodies,
but also for cloth, soft and rope. And you can
access disabled collisions through MAXScript.
Animatable Wind
You c an animate most parameters in the reactor
Wind (page 2–803) object, including wind speed
and direction. Range and Falloff parameters let
you set up the range of action for the wind.
Cloth/Sof t /R ope At tachments to
Deforming Meshes (S k in)
The Attach to DefMesh (page 2–799) deformable
constraint allows vertices in cloth, soft bodies, and
rope to follow a non-rigid mesh such as skin.