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Particle Nodes
The Particle nodes are used to generate a large number of duplicated objects that automatically
animate. They are used to create elements like falling rain, fireworks, smoke, pixie dust, and much
more. There are endless possibilities. Particles in Fusion consist of a set of nodes that are strung
together in a chain for generating, modifying, and rendering particles in a 2D or 3D scene.
To begin, every particle system you create must contain two fundamental nodes:
– pEmitter: Used to generate the particles and control their basic look, motion. and behavior.
– pRender: Used to render the output of the pEmitter into a 2D or 3D scene. When creating
particles, you only ever view the pRender node.
Particle Nodes
The remaining particle nodes modify the pEmitter results to simulate natural phenomena like gravity,
flocking, and bounce. The names of particle nodes all begin with a lowercase p to differentiate them
from non-particle nodes. They can be found in the particles category in the Effects Library.
pAvoid [pAv]
The pAvoid node
pAvoid Node Introduction
The pAvoid node is used to create a region or area within the image that affected particles attempt to
avoid entering and crossing.
It has two primary controls. The first determines the distance from the region a particle should be
before it begins to move away from the region. The second determines how strongly the particle
moves away from the region.
A pAvoid node creates a “desire” in a particle to move away from a specific region. If the velocity of
the particle is stronger than the combined distance and strength of the pAvoid region, the particle’s
desire to avoid the region does not overcome its momentum and the particle crosses that
region regardless.
Chapter 112Particle Nodes 2184
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