Ray Tracer

Trying to learn ray tracing in one weekend.

Build and run project

I hope you know how to do the obvious -

$ git clone https://github.com/Suvansarkar/raytracer
$ cd raytracer

Next generate make files using cmake

$ mkdir build
$ cmake -B build

Now build the project

$ cmake --build build

Run the project

$ ./build/raytracer > output.ppm

Note: This ray tracer only outputs to ppm format. You can use convert command to convert it to other formats.

$ convert output.ppm output.png

Sample images

Creating your own scenes

Add your own shapes to the main.cc file along with their materials. More shapes and materials are to be added later.

TODO

• Add a plane shape
• Add a cube shape
• Add dielectric materials (glass, water, etc)
• Add light sources using Phong Lighting model

Resources / References

Ray Tracing

• the ray tracing book
• A pixel is not a square
• Anti Aliasing

Lighting

• Blog on phong lighting
• Phong lighting princeton article