Hi there! This is OpenGLRenderer, my tiny renderer that implements some widely-used rendering (and also simulation) algorithms. This project, developed during my spare time for about a month, is still in its early stages. I plan to add more features in the future. Some of the currently scheduled features are listed below:
- Physics based rendering
- Global illumination based on spherical harmonics
- Screen space subsurface scattering
- Denoising of ray tracing
Currently this repo is intended only for demonstration purpose, so some third-party libraries are not included in the repo. All the core algorithm are included.
Here is what I have done.
Defered rendering is hard to demo, it will be left blank here.
I use specular reflection to demonstrate the effect of screen space ray tracing. Here is an example of a small cabin being reflected by a mirror on the ground.
Three types of shadows are implemented: vanilla shadow, percentage closer filter (pcf) shadow and percentage closer soft shadow (pcss) shadow. Here is a demo (left: vanilla shadow, middle: pcf, right: pcss).
Here is a demo of screen space ambient occlusion (ssao). left: no ssao, middle: wihth ssao, right: visualization of ssao color buffer.
I also added a simple demo of shallow water equation (swe) using fragment shader (the demo is supposed to run on all platforms, and macos doesnot support OpenGL compute shader).
