A-Bomb is a unique particle operator that allows you to add fluid like
motion to existing particles. When used in a default setup, the result
of this operator will create a classic mushroom cloud effect. However,
with a little modification many kind of complex fluid motions can be created
and may be used to simulate smoke or dust floating around.
ON - (Bool) This input data
stream determines whether the operator is considered 'on' or 'off'. You
can connect other operators to this input channel such as a Bool Helper
to activate/deactivate the whole operator.
Time - (Time) This input data stream is used to define the local
time for the operator when the user wants to override the default system
time.
Particle - (Particle) This input data stream reads in the currently
selected particle group that is to be brought to the target. The data
stream MUST be connected and will be highlighted yellow if it is not.
Position - (Position) This input data stream defines the Bring
To target position. The particle should land on this position (or near
this point).
Direction - (Direction) This input data stream is used to override
the User XYZ-Axis controls.
UI Controls - all UI Controls can be easily overwritten with an
Input Data Stream of any connected operator. Be careful! There is no real
indication that an operator is overwriting the UI element.
No Operator Outputs.
Center Drift - controls the amount the particles spread from the
center (stem). Only, the particles on the cap are affected by this value.
Keep in mind that an absolute symmetrical start position is needed to
make this feature work as expected.
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Center Drift = 0.5
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Center Drift = 2.0
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Variation - adds random
variation to the Center Drift value. This value is set as percent of Center
Drift.
Direction Drift - controls the amount of particle movement (acceleration)
from the top of the cap downward. Particle rolling takes place in the
cap only. Direction Drift allows you to add additional height per particle
roll. See the sample images below.
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Direction Drift = 1
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Direction Drift = 2.0
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Variation - adds random
variation to the Direction Drift value. This value is set as percent of
Direction Drift.
Whirl Speed - controls the rolling speed of the particle in the
mushroom's cap. High numbers will result in faster cycling times for each
particle. Don't get confused when the shape of the mushroom cloud changes.
Nearly every parameter interacts with the other parameters - changing
this value will result in a different look for the particle system.
Variation - adds random variation to the Whirl Speed value. This
value is set as percent of Whirl Speed.
Distance Dependent - acts as a influence multiplier for the particles.
This parameter defines the strength if the A-Bomb effect based on the
distance the particle has towards the center. Higher numbers will affect
particles farther away much stronger.
See samples below.
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Distance Dependent = 100
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Distance Dependent = 500
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Friction - sets the amount
of internal particle friction. Higher values will result in a tighter
mushroom cap.
Particle Friction - sets the amount of inter-particle velocity.
This parameter only affects the rolling cycles of the mushroom cap. Higher
values will result in a more spread-out effect.
