cugl::graphics::ParticleInstance Class Reference

#include <CUParticleSystem.h>

Public Member Functions
	ParticleInstance ()

Public Attributes
Vec4	position
Color4	color
Vec2	texOffset
float	distance

Detailed Description

This class is a struct representing the data for a particle instance

A particle system takes the template and multiplies using instancing. This struct represents the data unique to each instance.

Sprite animation is handled via the attribute texOffset. This value is added to the texture coordinates of the template to produce the new texture coordinates. This requires each texture component to have the same size. Set this value to (0,0) to disable animation.

Particle Instances are used by InstanceBuffer to render the particle instances. So we do not refer to them with shared pointers, or have fancy constructor for them.

Constructor & Destructor Documentation

ParticleInstance()

cugl::graphics::ParticleInstance::ParticleInstance ( )

inline

Creates an empty particle instance

Member Data Documentation

color

Color4 cugl::graphics::ParticleInstance::color

The color of the particle

distance

float cugl::graphics::ParticleInstance::distance

The squared distance to the camera. If dead, this value is -1.0f

position

Vec4 cugl::graphics::ParticleInstance::position

The position of the particle in 3d space; w is the radius

texOffset

Vec2 cugl::graphics::ParticleInstance::texOffset

The texture offset of this particle (for animation)

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The documentation for this class was generated from the following file:

• /Users/wmwhite/Developer/CUGL/include/cugl/graphics/CUParticleSystem.h