Useful Books

• Ray Tracing in One Weekend by Peter Shirley
• Ray Tracing: The Next Week by Peter Shirley

Useful Libraries

• GLM This is a header only C++ mathematics library for graphics. It is designed for use with OpenGL/GLSL but you can use it even though you won’t be using OpenGL/GLSL.

Barycentric Coordinates/Triangle Intersection

• scratchapixel

Reflection and Refraction (Transmission)

• Reflections and Refractions in Ray Tracing by Bram de Greve