A physics modifier that gives the particles random pushes. It is not a continuous noise field: it fires impulses at a fixed rate.
On each step, before the integration, the client evaluates the values of Noise once
for the whole emitter and works out how many impulses are due: one on the first step,
then the number of whole periods of frequency that have passed since the last impulse.
For each impulse, every particle within radius of Position gets a random direction,
multiplied per axis by NoiseVector, added to its acceleration.
Embed<VfxPhysicsNoiseDefinitionData> {
"frequency": { "Float": {} },
"Position": { "Vector3": {} },
"NoiseVector": { "Vector3": {} },
"radius": { "Float": {} }
}The impulse settings. See VfxPhysicsNoiseDefinitionData.