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the rendering interval rate. Note: This setting is effective only when the
Duration spinner is set to 0.
Explosion Parameters group
Start Time The frame number at which the impulse forces are first applied to
the particles.
Duration The number of frames, beyond the first, over which the forces are
applied. This value should typically be a small number, such as between 0 and
3.
Strength The change in velocity along the blast vector, in units per frame.
Increasing Strength increases the speed with which the particles are blown
away from the bomb icon.
Unlimited Range The effects of the bomb icon reach all bound particles
throughout the scene. This option ignores the Range setting (which specifies
the distance of the PBomb effect).
Linear The impulse forces decay linearly between the full Strength setting to
a value of 0 at the specified Range setting.
Exponential The impulse forces decay exponentially between the full Strength
setting to a value of 0 at the specified Range setting.
Range The maximum distance, in units, over which the PBomb icon affects
the bound particle system. If the Range is large enough to reach only a portion
of the particle system, only that part of the system is affected.
If you turn on Range Indicator (see following), the extent of the range is
indicated by a tri-hooped sphere. If you choose Unlimited Range, this
parameter has no effect.
Display Icon group
These options affect the visual display of the PBomb icon.
Icon Size Alters the overall size of the PBomb icon.
Range Indicator Displays a wireframe sphere that indicates the volume of
the particle bomb's influence. If you choose Unlimited Range, turning this
on has no effect.
2716 | Chapter 14 Space Warps and Particle Systems