9

PBomb Space Warp 69
Flow, u se a Force operator (page 2–204) to apply
thespacewarptotheparticlesystem.
Adjust the para meters of both the PBomb and
theparticlesystem.
Right: PBomb viewport icon
Above: PArray particle system
Below:TorusknotusedasthePArraysdistributionobject
Effect of blowing up the torus knot
Procedure
Example: To use PBomb 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 PArray object-based
emitter.
3. In the Basic Parameters rollout > Viewport
Display group, choose Mesh to display the
fragments as mesh objects in the v iewports.
4. OntheParticleGenerationrolloutofPArray,
set Speed and Divergence to 0.0. This prevents
PArray from moving the par ticles, letting
PBomb do the work.
5. On the Particle Generation rollout, set Life to
the leng th of the active t i me seg ment, so 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 categor y, 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 PB omb icon and move to the Modify
panel.
4. In the Explosion Parameters group, set Blast
Symmetry 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 fr ame 12 and t ry out various settings.
Notice that increasing Strength expands the
explosioneffectatthecurrentframe.Ifyou