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Using Help | Contents
When you explode particles, the new particles inherit the position, velocity, opacity,
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scale, and rotation of the original particles.
After you explode layers or particles, the movement of particles is influenced by the
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Gravity, Repel, Wall, and Property Mapper options.
Applying the Layer Exploder to a layer
Applying the Particle Exploder to particles
The Layer Exploder and Particle Exploder use the term "explode" in a purely physical
sense— the breakup of layers and particles and how the resulting particles are pushed
away from the original position. If you want to create a fiery explosion with smoke and
sparks, composite this effect with other layers containing fire, smoke, and sparks (either as
additional particle effects or from actual footage).
Some Property Mapper options can make explosions more realistic (see "About
Property Mappers (PB only)" on page 366). For example, change Opacity to make the
resulting particles fade out, or change the Red, Green, and Blue color channels to make
resulting particles change color as they appear to cool.
You can adjust the following options for Layer Exploder and Particle Exploder:
Explode Layer (Layer Exploder only) Choose the layer you want to explode. To make the
video disappear the moment the particles appear, either turn off the video for the layer or
trim the layer's Out point.
Radius of New Particles Type a value for the radius of the particles resulting from the
explosion. This value must be smaller than the radius of the original layer or particle.
Velocity Dispersion Type a value, in pixels per second, as the maximum speed of the
range within which Particle Playground varies the velocity of the resulting particles. High
values create a more dispersed or cloudlike explosion. Low values keep the new particles
closer together and can make the exploded particles resemble a halo or shock wave.
To explode a layer:
1 In the Effect Controls window for the composition, click the right-facing triangle next to
Layer Exploder so that it points downward.
2 Specify options.
Using Help | Contents
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Creating Particle Effects (PB only)
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