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84 Chapter 11: Space Warps and Particle Systems
Forexample,ifInheritVelis1.0,particleswith
no motion that are hit by a moving PDy naFlect
inherit the sp eed of the 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 g ravity of 1.0.
Kg—One kg (k ilog ram) equals 1000 g rams or 2.2
Lbm at a g ravity of 1.0.
Lbm—One Lbm (pounds-mass) equals 5/11 kg or
454 5/11 g r ams at a gravity of 1.0. (Pounds-mass,
the a mount of mass in one pound of weight, is
dependent on gravity. For pounds-mass values at
a grav ity other than 1.0, multiply the pounds-mass
value by the gravity factor.)
Display Icon group
Width/Height—Specif y 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 > SOmniFlect
SOmniFlect is the spherical version of the
omniflector type of space warp. It provides more
options than the original SDeflector. M ost settings
arethesameasthoseinPOmniFlect (page 2–78).
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 R adius,
instead of the W idth and Height.
Note: Opposite sides of the deflectors reverse
the distortion effect. Thus, a refracted particle
passing through the SOmniFlec t hits its outside
surfacefirst,andthenitsinsidesurface.Apositive
Distortion value warps the particles toward the
perpendicular;then,astheparticlespassthrough
the inside surface, the same po sit ive 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
Warp s. 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 p article deflection.
3. Apply the deflector to the pa rticle system using
the appropriate method:
•IfusingPar ticle Flow (page 2–109),specify
the deflector in the Collision test (page
2–212) or Collision Spawn test (page 2–215)
parameters.
•
If using a non-event-driven particle
system (page 2–237), bind (page 2–58) the
particle system to the deflector icon.
4. Position the SOmniFlect icon to interrupt the
part icle stream.