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Unigine.ParticleModifier Class

This is a base class for particle system modifiers. These modifiers are used to control how various parameters of particle systems (such as direction, radius, positions, etc.) change over the particle's lifetime.

There are two types of modifiers available:

  • Scalar - used for scalar parameters (radius, velocity, etc.). The majority of particle system modifiers belong to this type.
  • Vector - used for vector parameters (direction, position, etc.)

ParticleModifier Class

Enums

TYPE#

Type of the modifier. Defines the type of value controlled by the modifier.
NameDescription
PARTICLE_MODIFIER_SCALAR = 0In this mode the modifier controls a single scalar value via a single curve.
PARTICLE_MODIFIER_VECTOR = 1In this mode the modifier controls a vector of up to 4 values via a set of curves.

MODE#

Mode of the modifier. Defines how the controlled value is set.
NameDescription
CONSTANT = 0In this mode the specified value is fixed throughout the lifetime.
RANDOM_BETWEEN_TWO_CONSTANTS = 1In this mode two constants define the upper and lower limits for the value. The actual value changes randomly over time between these limits.
CURVE = 2In this mode the modifier controls each value via a single curve.
RANDOM_BETWEEN_TWO_CURVES = 3In this mode two curves define the upper and lower limits for the value at each point of the lifetime. The actual value changes randomly over time between these limits.
NUM_MODES = 4Number of particle modifier's modes.

Properties

ParticleModifier.MODE Mode#

The current mode of the particle modifier. the mode defines how the controlled value is set. you can switch modes at any time.
set
Sets the mode of the particle modifier. The mode defines how the controlled value is set. You can switch modes at any time.
set value - Modifier mode to be set. One of the MODE enum values.

ParticleModifier.TYPE Type#

The type of the particle modifier.

bool IsSignedValues#

A value indicating whether the value(s) controlled by the modifier are signed or unsigned.

Members


bool SaveState ( Stream stream ) #

Saves the current modifier state to the specified stream.

Arguments

  • Stream stream - Stream to which the modifier's state is to be saved.

Return value

true if the state is saved successfully; otherwise, false.

bool RestoreState ( Stream stream ) #

Restores a previously saved state from the specified stream.

Arguments

  • Stream stream - Stream from which the modifier's state is to be loaded.

Return value

true if the state is restored successfully; otherwise, false.

bool Save ( Xml xml ) #

Saves the modifier's state to the specified Xml node.

Arguments

  • Xml xml - Xml node to which the modifier's state is to be saved.

Return value

true if the state is saved successfully; otherwise, false.

bool Load ( Xml xml ) #

Loads a previously saved modifier's state from the specified Xml node.

Arguments

  • Xml xml - Xml node from which the modifier's state is to be loaded.

Return value

true if the state is loaded successfully; otherwise, false.

long GetSystemMemoryUsage ( ) #

Returns the total amount of memory used by the modifier.

Return value

Total amount of memory used by the modifier with all its keys, in bytes.
Last update: 2020-08-25
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