Spawn

Spawn particles. Most properties are shared with Particle.

Properties

Spawn
Spawn Type	Spawn Timing - Stream: Spawn particles constantly. - Burst: Spawn particles once in burst. - Trigger: Spawn particles using manual/automatic trigger.
Spawn Delay	For Stream type, frames delay between each particle spawn.
Spawn Frame	For Burst type, frame index to spawn.
Burst Duration	For Burst type, amount of frames to spawn.
Spawn Amount	Amount of particles to spawn per frame.
Lifespan	Particle lifespan.
Spawn > Source
Spawn Source	Type of particle spawn source. - Area Inside: Spawn inside an area. - Area Border: Spawn around area border. - Map: Spawn based on greyscale surface. - Path: Spawn along a path. - Direct Data: Spawn from array of vec2 points.
Distribution	For area, path source, particle spawning pattern.
Period	For uniform distribution, define distribution amount (e.g. if set to 4, particle will spawn at 4 fixed points in the source.) If set to zero, will use Spawn Amount.
Transform
Inherit Velocity	When spawning particle using a trigger from another particle. Whether to inherit velocity from the caller particle and how much.
Direction	Initial spawn direction.
Velocity	Initial velocity.
Scale
Scale	Define non-uniform particle scale.
Size	Uniform particle scale.
Events
Step Period	How often will the particle call step event (e.g. if set to 2, will trigger step event once every 2 frames).

1.19.8	Introduced