Emitter Settings

Emitter Settings

Particle Emission Volume

This setting specifies the number of particles emitted from a emitter in a single frame.
For values where 0 ≥ x > 1, that value is added to each frame, and after it reaches 1, a particle is emitted.

The following figure shows the particle emission timing based on an example in which the emission volume is 0.75 and the emission interval is 1.

Particle Emission Volume

Random Emission Volume

You can also configure for random particle emission volume.

Formula

Emission Volume ± (Random Value × Emission Volume)

Example

For an emission volume of 10 and a randomness of 50%, this equation would be 10 + ((Random value between - 0.5 and 0.5) × 10), producing a particle emission volume that varies between 5 and 15.

Particle Emission Time

The particle emission time is the period of time during which an emitter is emitting particles.

The following figure compares emitter settings for a particle emission volume of 1, an emission interval of 20 frames, and infinite emission time set to On and Off.
When infinite particle emission time is set to Off, the emission time is specified at 50 frames.

Particle Emission Time

Details for these settings:
When Infinite is set to On, the emitter continues to emit particles every 20 frames, emitting 5 particles over 80 frames.
When Infinite is set to Off, the emitter emits particles every 20 frames, but because the emission time was specified as 50 frames, only three particles are emitted over 80 frames.

Particle Emission Time Settings
Setting Parameters
Emission interval Specifies the interval at which the emitter emits particles.
Emission time Specifies the time duration during which the emitter emits particles.
When Infinite is set to On, the emission time is infinite.
When Infinite is set to Off, you can specify the emission time as a number of frames.

Particle Emission Interval

This setting specifies the time interval from one particle emission to the next. Specified as a number of frames from 0 through 100.

Random Emission Intervals

You can also specify a random interval between particle emission.

Formula

Number of Frames Specified as the Emission Interval ± (Random Value × Number of Frames Specified as the Emission Interval)

Example

For an emission interval frame count of 10 and a randomness of 50%, this equation would be 10 + ((Random value between - 0.5 and 0.5) × 10), producing particle emission intervals that vary between 5 and 15.


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