class `ParticleSize`

Inherits: ParticleEvolver

Changes the size of the particles over the particle lifetime.

Public

Constructors

ParticleSize

ParticleSize() = default

ParticleSize

ParticleSize(const ParticleSizeSettings &settings)

Methods

SetSettings

void SetSettings(const ParticleSizeSettings &settings)

Options describing the evolver.

GetSettings

const ParticleSizeSettings &GetSettings() const

GetProperties

const ParticleEvolverProperties &GetProperties() const override

Returns a set of properties that describe this evolver type.

staticCreate

static SPtr<ParticleSize> Create(const ParticleSizeSettings &settings)

Creates a new particle size evolver.

staticCreate

static SPtr<ParticleSize> Create()

Creates a new particle size evolver.

staticGetRttiStatic

static RTTIType *GetRttiStatic()

GetRtti

RTTIType *GetRtti() const override

Returns an interface you can use to access class' Run Time Type Information.

Private

Methods

Evolve

void Evolve(Random &random, const ParticleSystemState &state, ParticleSet &set, u32 startIdx, u32 count, bool spacing, float spacingOffset) const override

Updates properties of particles in the provided range according to the ruleset of the evolver.

random: Utility class for generating random numbers.
state: Particle system state for this frame.
set: Set containing the particles to update.
startIdx: Index of the first particle in to update.
count: Number of particles to update, starting from .
spacing: When false all particles will use the same time-step as provided by . If true the time-step will be divided by so particles are uniformly distributed over the time-step.
spacingOffset: Extra offset that controls the starting position of the first particle when calculating spacing. Should be in range [0, 1). 0 = beginning of the current time step, 1 = start of next particle.

Fields

mSettings

ParticleSizeSettings mSettings