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84 Chapter 11: Space Warps and Particle Systems
Note:
Because particles bounce off the perimeter
of the spherical icon, the size of the icon affects
part icle deflection.
3. Apply the deflector to the particle system using
the appropriate method:
•Ifusing
Particle Flow (p age 2–105) ,specify
the deflector in the
Collision test (p age
2–208)
or Collision Spawn test (page 2–211)
parameters.
•
If using a non-event-driven particle
system (page 2–233)
, bind (page 2–54) the
particle system to the deflector icon.
4. Position the SDeflector icon to inter r upt the
particle stream.
5. Adjust the SDeflector parameters as necessary.
Inter face
Particle Bounce group
These settings determine how the deflector affects
the b ound part icles.
Bounce—Determines the speed w ith which
particlesbounceoffthedeflector. At1.0,the
particles bounce at the same speed as they
approach.At0,theydon’tdeflectatall.
Variation—The amount by which each particle can
vary from the Bounce setting.
Chao s —Theamountofvariationfromtheperfect
angle of reflection (found when Chaos is set to
0.0). 100% induces a variation in reflection a ng le
of up to 90 degrees
Fr ict io n —The amount by which particles are
slowed as they move along the deflector surface.
Avalueof0%meansthey’renotslowedatall.A
value of 50% means they’re slowed to half their
original speed. A va lue of 100% means they stop
moving when they str ike the surface. Default=0%.
Range=0% to 100%.
Tip: To have pa rticles 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 str ike the surface at an angle other than 90
degrees.
Inherit V el—(Velocity Inheritance) When t he value
is greater than 0, the motion of the deflector affects
particlesaswellastheothersettings.Forexample,
to animate the SDeflector passing through a
passive array of particles, turn up this value to
affect the particles.
Display Icon group
This option affects the display of the icon.
Diameter—Specifies the diameter of the SDeflector
icon. T his setting also alters the effect of the
deflection, because part icles bounce off the
perimeter of the icon. The scale of the icon also
affects the particles.