Particle Emitter
Spawns and animates particles using configurable emission, motion and appearance parameters. Each particle inherits the look of ParticleDrawable and is integrated through gravity, air resistance and turbulence forces.
Library location
Library → Particle Emitter
Properties
Seed
Seed for the random number generator (changing it produces a different pattern with the same parameters).
- Type:
int - Default:
0 - Animatable: Yes
Emitter Shape (EmitterShape)
Shape of the area particles are emitted from (Point / Line / Rect / Ellipse).
- Type:
EmitterShape - Default:
Particles.EmitterShape.Point - Animatable: No
Emitter Width (EmitterWidth)
Width of the emitter shape.
- Type:
float - Default:
100 - Animatable: Yes
- Range:
[0, ∞)
Emitter Height (EmitterHeight)
Height of the emitter shape.
- Type:
float - Default:
100 - Animatable: Yes
- Range:
[0, ∞)
Max Particles (MaxParticles)
Hard cap on the number of simultaneously alive particles.
- Type:
int - Default:
5000 - Animatable: No
- Range:
[1, 50000]
Prewarm Duration (PrewarmDuration)
Time to simulate before the emitter starts. Only particle simulation advances; property animations do not.
- Type:
TimeSpan - Default:
00:00:00 - Animatable: No
- Range:
[00:00:00, 00:01:00]
Emission Rate (EmissionRate)
Particles emitted per second.
- Type:
float - Default:
60 - Animatable: Yes
- Range:
[0, ∞)
Lifetime
Average lifetime of a particle in seconds.
- Type:
float - Default:
2 - Animatable: Yes
- Range:
[0, ∞)
Lifetime Random (LifetimeRandom)
Random variation added to / subtracted from the lifetime.
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
Speed
Initial speed of newly spawned particles.
- Type:
float - Default:
200 - Animatable: Yes
- Range:
[0, ∞)
Speed Random (SpeedRandom)
Random variation of the initial speed.
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
Direction
Mean emission direction in degrees (0 = right, 90 = down).
- Type:
float - Default:
-90 - Animatable: Yes
Spread
Angle range (degrees) over which the direction is randomized.
- Type:
float - Default:
30 - Animatable: Yes
- Range:
[0, 360]
Gravity
Constant downward acceleration applied to each particle.
- Type:
float - Default:
200 - Animatable: Yes
Air Resistance (AirResistance)
Velocity damping factor (higher = particles slow down faster).
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
Turbulence Strength (TurbulenceStrength)
Strength of the noise-based turbulent force.
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
Turbulence Scale (TurbulenceScale)
Spatial scale of the turbulence noise.
- Type:
float - Default:
0.01 - Animatable: Yes
- Range:
[0, ∞)
Turbulence Speed (TurbulenceSpeed)
How fast the turbulence pattern evolves over time.
- Type:
float - Default:
1 - Animatable: Yes
- Range:
[0, ∞)
Particle Drawable (ParticleDrawable)
Drawable used to render each particle.
- Type:
Drawable? - Default:
null - Animatable: No
Particle Size (ParticleSize)
Initial size of each particle.
- Type:
float - Default:
10 - Animatable: Yes
- Range:
[0, ∞)
Size Random (SizeRandom)
Random variation added to the initial size.
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
Color (ParticleColor)
Initial particle color tint.
- Type:
Color - Default:
Colors.White - Animatable: Yes
Particle Opacity (ParticleOpacity)
Initial opacity (0 – 100).
- Type:
float - Default:
100 - Animatable: Yes
- Range:
[0, 100]
Initial Rotation (InitialRotation)
Initial rotation in degrees.
- Type:
float - Default:
0 - Animatable: Yes
Initial Rotation Random (InitialRotationRandom)
Random variation of the initial rotation.
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
Angular Velocity (AngularVelocity)
Continuous rotation speed (degrees per second).
- Type:
float - Default:
0 - Animatable: Yes
End Size Multiplier (EndSizeMultiplier)
Size multiplier at the end of a particle's life.
- Type:
float - Default:
1 - Animatable: Yes
- Range:
[0, ∞)
End Opacity Multiplier (EndOpacityMultiplier)
Opacity multiplier at the end of a particle's life.
- Type:
float - Default:
0 - Animatable: Yes
- Range:
[0, ∞)
End Color (EndColor)
Color the particle interpolates to over its lifetime (when UseEndColor is on).
- Type:
Color - Default:
Colors.White - Animatable: Yes
Use End Color (UseEndColor)
Enables color interpolation from ParticleColor to EndColor.
- Type:
bool - Default:
false - Animatable: No
Common properties
This object inherits from Drawable and exposes the common properties declared on its base classes.