Ambient: particles drift around the scene volume, then decay and respawn after interaction
Body coating: particles rest around avatar body zones, can be swiped away by avatar hand movement, then decay and respawn

Controls:

Particles: toggles the effect
Behavior: chooses Ambient or Body coating
Texture mode: chooses the default glow or an image texture
Image URL: texture-mode only; image used as the particle sprite
Image URL plus button: texture-mode only; uploads an image and fills the URL
Target: body-coating only; chooses the avatar to coat, or Auto for the first available avatar
Count: sets how many particles render
Size: changes particle point size
Speed: changes animation speed
Opacity: changes particle visibility
Decay: higher values make pushed-away particles disappear faster
Respawn: higher values make disappeared particles return faster
Orbit speed: body-coating only; rotates resting particles around the avatar
Orbit radius: body-coating only; adds distance outside the avatar surface
Offset X/Y/Z: body-coating only; shifts the coating target in scene units
Spread: changes horizontal coverage
Height: changes vertical coverage
Interaction: chooses particle collision targets. Camera interactions show Body + hands and Hands; otherwise the editor shows Cursor and None.
Strength: changes how strongly avatar movement pushes particles
Reach: changes the avatar interaction radius
Color: chooses the particle color

Body coating requires an avatar target, but Interaction can be set to None when particles should stay non-interactive.

Rate behavior:

Low Decay: dislodged particles linger longer
High Decay: dislodged particles fade and shrink faster
Decay at 0: dislodged particles do not disappear from decay
Decay at 1: opacity fades in about 1 second
Decay at 5: opacity fades in about 0.2 seconds
Decay at 10: opacity fades in about 0.1 seconds
Low Respawn: missing particles return slowly
High Respawn: missing particles return quickly
Respawn at 0: disappeared particles do not return
Respawn at 1: dead particles have roughly a 1-per-second return rate
Respawn at 5: dead particles return very quickly, around 0.2 seconds on average
Respawn at 10: dead particles return almost immediately, around 0.1 seconds on average