From Scratch, in C

I started this project with one goal: Hand-roll everything. My Ray Tracer is really inefficient, but it was an invaluable learning experience.

The final demo render took 2 minutes.

Current Features

• Spheres and Planes
• Point Lights, Directional Lights, and Sphere Lights
• Lambertian & Specular Reflection
• Refraction & Refractive Index
• Soft shadows
• MSAA

Under the Hood

And here’s some cool algorithms and data structures I implemented:

• Enum-Union Struct to chain different struct types into one list
• This was tedious, I yearned for C++
• Vector Math
• Ray-Plane & Ray-Sphere Intersection
• Sum of Lambertians
• Camera rig
• Frame buffer that renders to the screen in square-sized chunks