opengl-engine

A series of classes utilizing OpenGL for graphics, including particle system effects, L-systems, skyboxes, etc.

Installation

Navigate to the build/ subdirectory and execute cmake .. for an out-of-source build, then call make. CMake must be installed, and OpenGL and GLUT are required dependencies for this project.

The sample program displays a textured grass floor, a skybox, plants procedurally generated using L-systems, snow, and a particle water fountain. Right click to change fountain settings and press escape to quit.

Source description

• Camera.h: Defines a camera, which consists of 3 unit dimensional vectors and a 3D position. Contains methods for camera movement, rotation, etc.

• Color.h: Useful template classes for RGB and RGBA colors.

• Debug.h: Contains assert macros for debugging, including a compile-time assert.

• Error.h: Defines an ERR_CODE enum, used for general error handling.

• GLIncludes.h: Platform-dependent OpenGL/GLUT includes, put in a header file for convenience.

• Image.h: Contains functionality for loading TGA (either compressed or uncompressed) and RAW images.

• LSystem.h: Implementation of Lindenmayer systems, which recursively use a set of grammar rules to generate an object.

• Logger.h: Defines a Logger singleton which writes messages to the user and/or a file (gameengine.txt by default).

• Math.h: Contains the constant pi and trigonometric functions in degrees.

• Model.h: Allows for the loading and rendering of MODEL files (a custom 3D format).

• ParticleSystem.h: A base particle system class and subclasses Fountain, Fireworks, and Snow with configurable parameters.

• Point.h: Template classes for 2D and 3D points.

• Quaternion.h: Implements quaternion rotation and various mathematical operations on quaternions.

• Singleton.h: Useful base class for singletons (inspired by "Game Programming Gems", section 1.3 by Scott Bilas).

• Skybox.h: Textured skybox class, which gives the appearance of a faraway background.

• Texture.h: Creates a texture manager which handles allocation, processing, and deletion of OpenGL textures through a texture handle class.

• Utils.h: General purpose methods.

• Vector.h: Template classes for 2D and 3D vectors.