Spawn-position pattern. Position is sampled once per particle, in
emitter-local space (relative to ParticleEmitter.origin), then
translated into world space.
point — always at the origin.
rect — uniform inside an axis-aligned rectangle centred on the origin.
circle — uniform inside a disk; hollow: true samples the rim only.
arc — on the rim of a circular arc, angle* in radians.
custom — user-provided sampler. Receives the emitter's RNG.
Spawn-position pattern. Position is sampled once per particle, in emitter-local space (relative to ParticleEmitter.origin), then translated into world space.
point— always at the origin.rect— uniform inside an axis-aligned rectangle centred on the origin.circle— uniform inside a disk;hollow: truesamples the rim only.arc— on the rim of a circular arc,angle*in radians.custom— user-provided sampler. Receives the emitter's RNG.