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kbladin / ElkEngine

Simple graphics engine used as submodule in many of my projects
MIT License
61 stars 11 forks source link
assimp cplusplus cplusplus-11 cplusplus-14 freeimage glfw glfw3 glsl graphics graphics-engine graphics-library graphics-rendering opengl opengl-shading-language physically-based-rendering rendering rendering-3d-graphics rendering-engine

readme

Elk Engine

Elk

Graphics engine to control low level OpenGL interfacing used many of my OpenGL projects.

Features

Support for both deferred rendering and forward rendering and costum renderables. For deferred rendering I am using the "metalness" PBR workflow. Fresnel effect using Schlicks approximation for dielectrics, approximating metals by setting R0 to the albedo of the material. Some other shader effects are HDR-blooming and depth of field based on physical camera parameters.

Mesh loading using the assimp library. Texture loading using freeimage. Window management using GLFW.

Build

The library and program are built using cmake.

Run CMake in the ElkEngine directory and build in ElkEngine/build.

Dependencies

GLEW is required. Currently GLFW is the only supported window manager. To be able to load meshes, assimp needs to be linked and to be able to load textures, freeimage is required.

Screenshots

Some screenshots of the PBR renderer.

PBR Materials from: http://freepbr.com Cube maps from: http://www.humus.name/index.php?page=Textures and: http://www.custommapmakers.org/skyboxes.php