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PDynaFlect Space Warp 81
Distortion angle by the Diffusion angle. This
effectively scatters the particles into a hollow cone.
Variation—Specifies a range of variation of the
Diffusion value.
Common group
Fr iction —The amount by which par t icles are
slowed as they move a long the deflector surface.
Avalueof0%meansthey’renotslowedatall.A
value of 50% means they’re slowed to half their
original speed. A value of 100% means they stop
moving when they strike the surface. Default=0%.
Range=0% to 100%.
Tip: To have particles slide along a deflector surface,
set Bounce to 0. Also, unless influenced by a force
such as Wind or Gravity, particles meant to slide
should strike the surface at an ang le other than 90
degrees.
Inher it Vel —(Velocity Inheritance) Determines
how much of a moving POmniFlect’s speed is
appliedtoreflectedorrefractedparticles.
Forexample,ifInheritVelis1.0,particleswith
no motion that are hit by a moving PomniFlect
inherit the speed of the POmniF lect at the point
of collision.
Spawn Effects Only group
These sett ings affect only particles set to Spaw n On
Collision that do not either reflect or refract f rom
the omniflector. See Particle Spawn Rollout (page
2–271). The Spawns percentage spinner works
like the Reflects a nd Refracts percentage spinners,
but is the third in line to be processed. Thus, if
either Reflects or Refracts are set to 100%, no
particles are affected by these settings. Note also
that reflective or refractive particles spawn upon
collision, regardless of the settings in this grou p.
Spawns—Specifies the percentage of particles that
can use spawn effects.
Pas s V el —Specifies how much of the particle’s
initial speed is maintained after p assing through
the POmniFlect.
Variation—Specifies the variation of the Pass
Velocity setting applied to the range of particles.
Display Icon group
Width/Height—Specify the width and height of the
POmniFlecticon.Thisisfordisplaypurposesonly
and does not influence the deflector effect.
PDynaFlect Space Warp
Create panel > Space Warps > Deflectors > Object Type
rollout > PDynaFlect
PDynaFlect (planar dynamics deflector) is a
planar version of the dy naflector, a special class
of space warp that lets particles affect objects in
a dynamics situation. For example, if you want a
stream of particles to strike an object and knock
it over, like the st ream from a firehose str ik ing a
stack of boxes, use a dynaflector.
Note: You use dynaflectors in the same way as
omniflectors; that is, you can use them as deflectors
alone, w ith no dynamics simulation. Because they
take physics into account, dynaflectors are slower
than omniflectors. Therefore, it is recommended
that you use dynaflectors only when a dynamics
simulation is involved.