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80 Chapter 11: Space Warps and Particle Systems
Forexample,ifInheritVelis1.0,particleswith
no motion that are hit by a moving PDynaFlect
inherit the speed of t he PDynaFlect at the point
of collision.
Physical Properties group
Theseoptionsletyousetthemassofeachparticle.
Mass—Specifies the mass based on the chosen unit.
gra m—One gram equals 1/1000 k g or 22/1000
Lbm at a gravity of 1.0.
Kg—One kg (ki log ram) equals 1000 grams or 2.2
Lbm at a gravity of 1.0.
Lbm—One Lbm (pounds-mass) equals 5/11 kg or
454 5/11 grams at a gr avity of 1.0. (Pounds-mass,
the amount of mass in one pound of weight, is
dependent on gravity. For pounds-mass values at
a gravity other than 1.0, multiply the pounds-mass
value by the gravity factor.)
Display Icon group
Width/Height—Specify the width and height of the
PDynaFlecticon.Thisisfordisplaypurposesonly
and does not influence the deflector effect.
SOmniFlect Space Warp
Create panel > Space Warps > Deflectors > Object Type
rollout > SOmniFlec t
SOmniFlect is the spherical version of the
omniflector type of space warp. It provides more
options than the original SDeflector. Most settings
are t he same as those in
POmniFlect (page 2–74) .
Thedifferenceisthatthisspacewarpprovidesa
spherical deflection surface rather than the planar
surface. The only settings that are different are in
the Display Icon area, in which you set the Radius,
instead o f the Width and Height.
Note: Opposite sides of the deflec tors reverse
the distortion effect. Thus, a refracted par ticle
passing through the SOmniFlect hits its outside
surfacefirst,andthenitsinsidesurface.Apositive
Distortion value warps the particles toward the
perpendicular;then,astheparticlespassthrough
the inside sur face, the same positive Distortion
value war ps them toward the parallel.
SOmniFlect viewport icon
Procedure
To create an SOmniFlect space warp:
1.
On the Create panel, click Space
Warps. Choose Deflectors from the list, then
on the Object Type rollout, click SOmniFlect.
2. Drag in a viewport to create the spherical icon.
Note: Because particles bounce off the icon, the
size of the icon affects particle deflection.
3. Apply t he deflector to the particle system using
the appropriate method:
•Ifusing
Particle Flow (page 2–105) ,specify
the deflector in the
Collision test (page
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 SOmniFlect icon to interr upt the
part icle stream.