Birth operator

The Birth operator is the simplest operator for creating new particles over time.


  • Start/End: controls the time range in which to birth new particles.

Total

  • Count: controls the total number of particles to birth over the time range.

Per frame

  • Count: controls the number of particles to birth per frame over the time range.

Repeater

Repeater particle count
  • Count: controls the number of particles to birth per interval.

  • Variation %: the per-particle percentage of variation to apply.
Repeater duration
  • Frames: controls the number of active birth frames per interval, within the overall time range.

  • Variation: the per-particle amount of variation to apply.
Repeater interval
  • Frames: controls the amount of time to wait between birth intervals.

  • Variation: the per-particle amount of variation to apply.

The repeater is useful for repetitive particle birth sequences. For example, imagine you wanted to shoot 50 particles into the scene, every 20 frames. You would enable the repeater and set count to 50, duration to 1 and interval to 20. Using the repeater avoids having to setup multiple birth operators to achieve the same outcome.