8
PBomb Space Warp 65
Flow, use a
Force operator (page 2–200)
to
apply the space warp to the particle system.
• Adjust the para meters of both the PBomb and
theparticlesystem.
Right: PBomb viewport icon
Above: PArray par ticle system
Below: Torus knot used as the PArray’s distribution
object
Effect of blowing up the torus knot
Procedure
Example: To use PB omb with PArray:
You can use the Particle Bomb bound to a Particle
Arraytoblowanobjectintofragments. The
following steps demonstrate the basic setup.
Begin by binding a particle array to an object, and
setting p arameters.
1. Create the object you want to blow up.
2. Create a PArray and use Pick Object to assign
the object to blow up as the PArr ay object-based
emitter.
3. In the Basic Parameters rollout > Viewport
Display group, choose Mesh to display the
fragments as mesh objects in the view por ts.
4. OntheParticleGenerationrolloutofPArray,
set Speed and Divergence to 0.0. This prevents
PArray from moving the particles, letting
PBomb do the work.
5. On the Particle Generation rollout, set Life to
the length of the active time segment, s o that the
fragments appear during the entire animation.
6. IntheParticleTyperollout>ParticleTypes
group, choose Object Fragments. In the Object
Fragment Controls group, choose Number of
Chunks, and set the Minimum to about 50,
depending on your distribution object and the
effect you want.
Now create a particle bomb, and bind it to the
part icle array.
1. In the Space Warps panel > Particles &
Dynamics category, click the PBomb button
and drag in a viewport to create the PBomb
icon.
2. UseBindtoSpaceWarptobindthePArray
icon to the PBomb icon. (Don’t bind the
distribution object by m ist ake.)
3. Select the PBomb icon and move to the Modify
panel.
4. In the E xplosion Parameters g roup, set Blast
Sy mmetry to Spherical, Start Time to 10,
Duration to 1, and Strength to 1.0. Choose
Linear, if it’s not already chosen.
5. Drag the time slider between frames 9 and 20
to see the effect.
6. Go to f rame 12 and try out various settings.
Notice that increasing Strength expands the
explosioneffectatthecurrentframe. Ifyou