When each particle in the particle stream ends, the second particle stream begins. This can be used, for example, to create fireworks.

To make particles generate other particles:

1. Create a particle generator. You can use a light source, 3D object, or surface as a particle generator. See Generating Particles.
2. In the schematic, select the Particle Generator.
3. Add another particle generator by double-clicking the Particle Generator node in the Node bin.
4. In the Particle Generator menu, set the second particle generator's Spread and other properties as appropriate. See Setting Particle Properties.
   NoteIn the Channel Editor's folder for the second particle generator, you can set the Spread_V channel to add variance to the value in the Spread field.

   The following figure shows the schematic and the result of a particle stream that generates a second particle stream. The first particle stream generates spheres and the second particle stream generates quads.