
The Set Alignment Operator is used to place a selected
particle into a specific alignment at the point it receives a true ON
condition. This is a handy way of re-aligning particles within an animation.
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 used as the source for the alignment
adjustment. This data stream MUST be connected and will
be highlighted yellow if it is not.
Alignment - (Alignment) This input data stream reads in a matrix
value for the alignment of the particle and is used to override all of
the spinners in the rollout.
UI Overwrite - those inputs are identical with those found in
the rollout menu. When an input is connected the relevant UI control value
is ignored.
No Operator Output

Rotation [*] X/ Y/ Z - The three rotational axis spinners can
be used to set the way in which the particles orient themselves over time.
Variation [*] X/ Y/ Z - These three spinners can be used to add
a bit of random rotational variance to your particles.