Non-photorealistic renderer

This repo contains source code for a CPU-based ray tracer that produces images in watercolor and cel-shaded styles.

Setup

Download the following and put them in the external/ directory:

• Files lodepng.h and lodepng.cpp from here,
• The glm/ folder from the GLM repository,
• The file PerlinNoise.hpp from here.

Usage

Run make to generate an executable and ./bin/main to run it. This renders four example scenes whose output PNGs can be found in out/. You can find the code and API usage in src/examples.cpp.

Acknowledgments

This code was written by Maxwell Jiang and Daniel Hu for MIT's 6.4400 Computer Graphics course. The watercolor algorithms are based on those described in Santiago Montesdeoca's thesis.