Configuring Parameters for Snow

emitterPosition

FLOAT3

Emitter position. Used when followRenderCamera is False.

x

enabled

BOOL

Enable/disable, show/hide the snow effect

x

followRenderCamera

BOOL

The emitter position moves each frame to match the camera that is used for rendering.

x

forcesMultiplier

FLOAT

[0..inf]

Scales all the forces in the simulation.

Can be used while tweaking forces.

Resets the simulation.

x

frameZeroAutoPopulate

BOOL

Populates the simulation with random particles on the first simulation frame. Without this, particles start from a simulated position, which may result in an empty screen until the particles fall.

Resets the simulation.

x

frameZeroYRange

FLOAT

[0..inf]

The Y range in which particles spawn if frameZeroAutoPopulate is True.

This is relative to the emitter position.

Resets the simulation.

x

gravity

FLOAT3

Gravity (or main force).

x

heightMap

NODE

HeightMap params.

yDrain and heightMap nodes cannot be used simultaneously.

maxParticles

INT

[1..inf]

Max number of particles available for the simulation.

Do not change during runtime.

Resets the simulation.

x

name

STRING

Identifier of this particles renderer.

numParticles

INT

[0..inf]

Number of particles processed and rendered.

Must be less than (or equal to) maxParticles.

x

opacity

FLOAT

[0..1]

Pixel Opacity

x

particleWidth

FLOAT

[0..inf]

Width of the rendered particles

x

particleYAspect

FLOAT

[0..inf]

Y aspect ratio of the rendered particles (Y= Width x YAspect)

x

randomForceRange

FLOAT3

Additional force added randomly to each particle.

X and Z component have a random range from -range to +range.

Y component have a random range between 0 and range.

Resets the simulation.

x

spawnRadius

FLOAT

[0..inf]

Particles spawn radius (X and Z components)

x

spawnY

FLOAT

Particles spawn Y (relative to the emitter position, Y= emitY + spawnY)

x

spawnYRandomRange

FLOAT

Particles spawn range on the Y axis

x

texture

NODE

Rendering texture parameters

type

STRING

Snow

Must be Snow.

version

INT

1

Must be 1.

wind

FLOAT3

Additional force.

x

yDrain

FLOAT

The Y value at which the particles die.

yDrain and heightMap nodes cannot be used simultaneously.

x