View Click Script Operator in an event or add
a Script Operator to the particle system and then select it.
The Script operator
enables control of particles within the Particle Flow system using
a MAXScript script. The script can use any program functionality
available to MAXScript.
When you add a new Script
operator, it contains a default script that slows particles, and
then, when they are slow enough, splits off the first 50 particles
into a stream traveling in a negative direction on the world X axis, and
the remainder traveling in the opposite direction.
TipYou can use MAXScript
to align particle scale with the underlying bitmap, thus providing
a “scale bitmap” function. This requires a sandwich with three operators:
two Script operators, and a Speed By Surface operator in between.
The first Script operator reads the current speed vector into the MXVector
channel, thus caching the current speed. The Speed By Surface operator
changes the speed according to the underlying bitmap. And the second Script
operator reads the speed channel into a temporary variable, restores
the speed from the MXVector channel (the cached value), and uses
the temporary variable to define the scale. This way, the original
speed is restored, and the scale value is defined by the bitmap.
The user interface appears
in the parameters panel, on the right side of the Particle View
- Edit Script
Click this button to
open the current script in a MAXScript Editor window.
For detailed information
about the MAXScript utility, open the MAXScript Help, available
from Help menu MAXScript Help.
The Uniqueness setting
provides a randomization seed that the script can use or ignore.
Specifies a randomization value.
Calculates a new seed using
a randomization formula.