Particle systems are used in computer graphics for drawing fuzzy-shaped objects such as fire, clouds, and trails of dust. The basic idea for such systems is drawing a large number of small, moving particles and controlling their motion.
Here we consider the basic principles of modeling and drawing particle systems and demonstrating them by building a simple 2D particle system. In this chapter, we will
cover the following topics:
- The basics of particle systems
- A single particle
- An emitter
- The attraction, repulsion, and spinning forces
- Graphical user interface
By the end of this chapter, you will have a fully-featured project for experimenting with the particle system.
Codes for openFrameworks 0.9.8 (Windows/VS2015 C++ and Xcode/OSX): Download
Codes and executables for openFrameworks 0.074, (Windows/VS2010 C++): Download
Particle System with GUI
This example demonstrates the particle system with GUI.