Single Cell Versus Multi-Cell Emitter Parameters
If a particle system has only one cell, the Emitter Inspector displays all parameters for the
cell, as well as the emitter’s own parameters. In this case, you can control every aspect
of the particle system from this single Inspector, which saves you from going back and
forth between the Emitter and Particle Cell Inspectors.
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Chapter 14
Working with Particles
If a particle system has two or more cells, the Emitter Inspector looks much different. The
list of parameters is much shorter, and the majority of the cell parameters are replaced
with a smaller group of Master Controls (hidden by default).
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Working with Particles
Changes made using the Master Controls modify the effect of each cell’s parameters
relative to the other cells in the system. This means that for a particle system with three
cells that have different Scale values, increasing the Scale parameter in the Emitter
Inspector multiplies the Scale value of all three cells by the same percentage. This has
the result of increasing or reducing the size of every particle in the system, while keeping
the size of each particle relative to one another the same.
Original particle system
Particle system scaled to 200 percent
For this reason, the Master Controls parameters of multi-cell particle systems appear as
percentages.