ionEngine

ionEngine is a C++ rendering engine that I wrote while a student at Cal Poly. It was used for my master's thesis as well as some scientific visualization work. Development of ionEngine has been discontinued. I'm working on a Direct3D 11 port that is closed-source for the time being.

Overview

ionEngine is made up of several libraries:

• ionCore: basic typedefs and boilerplate, some string and file helpers, standard library helpers
• ionMath: vector classes for 2, 3, and 4 dimensions. A custom “color” class that encapsulates a vec3 or vec4 with implicit conversions between float and byte colors. Other geometric primitives including rays, lines, boxes, triangles, etc.
• ionWindow: generic interface and helpers for operating system utilities, in particular window/context creation
• ionGraphics: generic and modular interface for any rendering API, in particular for OpenGL
• ionScene: scene interface that provides basic mesh loading, encapsulated renderable objects, and extensibility to add multipass rendering and other advanced functionality
• ionScience: algorithm implementations useful for various scientific applications, including long/lat classes, marching cubes, ear clipping, volumetric data rendering

Features

ionEngine provides features through a large number of optional modules so that only the necessary components need to be included in a project.

Features included in ionEngine or additional modules are:

• Component-entity based scene graph which is renderer-agnostic to maximize extendability
• Forward and deferred lighting systems implemented using OpenGL
• Bloom, SSAO, depth-of-field, and other post-processing effects
• Volumetric utilities such as a shader-based raycast volume renderer and marching cubes implementation
• GUI elements provided through dear imgui
• Windowing and input provided through GLFW

Distribution

Source code is available on GitHub

Further information can be found at ionengine.io.

Documentation (generated with Doxygen) can be found at docs.ionengine.io.

License

ionEngine is licensed under the MIT license