Core

Light-weight, C/C++ based, 3D rendering library built on OpenGL. Ultimately intended to be the successor to/replacement for my older gaming engine, GTE.

Current features:

Multi-pass and single-pass forward rendering
Model import: Support for many industry standard formats via the Assimp library
Image import: Support for many industry standard formats via the DevIL library
Dynamic shadows via shadow maps
- Support for directional and point lights (2D and cube shadow maps)
- Multiple cascade levels for directional lights
- Soft edges through PCF
Physically-based rendering
- Cook-Torrance BRDF
- Image-based ambient lighting for global illumination approximation
- HDR support
- Gamma correction support
Skeletal animation:
- Vertex skinning
- Animation blending
Particle systems
Scene-graph API
Render-to-texture capability
Screen-space ambient occlusion

External dependencies:

Assimp (Asset Import Library)
DevIL image library

Dynamic versions of the above libraries are required.

Building

Standard CMake build is currently supported and an out-of-source build is recommended. To generate the make files, execute the command relevant to the desired configuration (Linux/Unix examples shown):

Debug:

cmake -G "Unix Makefiles"

Release:

cmake -DCMAKE_BUILD_TYPE=Release -G "Unix Makefiles"

A release build will be significantly more performant.

External Libraries

You will need to modify the locations of the Assimp and DevIL libraries in CMakeLists.txt. The relevant variables are DEVIL_DIR and ASSIMP_DIR.

Linux notes

In order for CMake to find your OpenGL installation on some Linux distributions, it may be necessary to run the following command to install the Mesa development packages:

 sudo apt-get install libgl1-mesa-dev

The DevIL library can be installed via:

 sudo apt-get install libdevil-dev

The Assimp library can be installed via: