raytracer

An implementation of raytracing in modern C++, based on code from the Ray Tracing in One Weekend book series. This implementation uses multi-threading, ranges, and imgui to provide an interactive rendering experience.

UI controls include:

Field of view
CPU thread/worker count
XYZ camera position
IJK camera "look at" position
Samples count to control render quality
Global shade control for "day" or "night" rendering
"balls" window: Add or remove spheres and set each sphere's material, size, and position

The UI also does low-quality "live" rendering as settings are changed; click "recalculate" to render in high-quality. The visible render can be exported as a PNG image to the current directory.

Build instructions

Download imgui submodule via git submodule.
Have GCC, GNU Make, and SDL2 installed.
Run 'make'.

The final program binary is called main.