OGLR - OpenGL Renderer

Game engines always fascinated me, but I was lacking knowledge about the fundamental principles that make 3D graphics appear on the screen. Therefore, I decided to start from scratch and learn the basics, in this case through OpenGL.

The current version features the implementation of an OpenGL renderer (using the core profile, version 3.3 as of now).

• Vector- (dot- and cross-product) and matrix operations

• Coordinate spaces (model-, view-, projection-matrix)

• Controllable flythrough camera

• Phong shading

• Lighting with a directional light, point lights and a spotlight

• UI to control light and material properties at runtime using Dear ImGUI

• Event based keyboard and mouse input through GLFW

• Import of 3D models stored in various formats, including support for binary glTF 2.0 files with embedded textures through Assimp

• Cross-platform (compiled for Windows and Linux)

The source code and builds are available on GitHub: https://github.com/saschabrunner/OGLR

I built this renderer based on the contents of the learnopengl.com website by Joey de Vries. It represented a very useful resource to me, explaining all the basic principles behind 3D graphics, including the maths and ideas required to bring basic points in space through the coordinate spaces onto screen, texture faces and add lighting.

With my extensive C and moderate C++ knowledge prior, I set myself out to add to the provided code samples. As an exercise to myself, I used many of the unique C++ features to improve my C++ knowledge substantially.