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# emitter

A set of nodes usable in the emission stage of a simulation, which control how often and how many elements to spawn.

## Topics

### Functions

[`void emitter::burst(burstSize)`](/documentation/ComputeGraph/emitter/burst)

Emit a single burst of particles when the system spawns.

[`void emitter::continuous(rate, maxBurst)`](/documentation/ComputeGraph/emitter/continuous)

Continuously emit particles at a fixed rate.

[`void emitter::periodicBurst(intervalRange, burstSize)`](/documentation/ComputeGraph/emitter/periodicBurst)

Emit a burst of particles periodically.

[`void emitter::setGroup(activeGroup, sequentialGroups)`](/documentation/ComputeGraph/emitter/setGroup)

Sets the element group(s) for spawn requests from this emitter.

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