scthe/rs-raytracer

Rust implementation of 'Ray Tracing in One Weekend'

Rust implementation of "Ray Tracing in One Weekend"

Ray Tracing in One Weekend is a series of books by Peter Shirley showcasing implementation of a simple ray tracer. It's a good introduction and for the most part you can just copy the code. I've written many real-time graphic projects, but never a ground up offline ray tracer. I admit that I've already knew most of the math behind it, so the implementation was quick and painless.

Scene 7 after using optix denoiser. See below for raw image.

Scope

Book 1

• render the sphere - DONE
• surface normals - DONE
• antialiasing - DONE
• diffuse materials - DONE
• metal materials - DONE
• dielectrics materials - DONE
• camera aperture - DONE

Book 2

• motion blur - nope, I'm fundamentaly opposed to this feature
• Bounding Volume Hierarchies - DONE
• textures - DONE
• image textures - DONE
• lights - DONE
• instancing/transforms - DONE, actually implemented as matrix transforms
• volumes - DONE

Additional improvements

• parallel execution - using rayon, task per pixel
• transform matrices - book only introduces hardcoded single-axis rotations and simple translation

Sample scenes

More sample scenes are in src/scenes. Do not forget to use release build: cargo build --release!

Scene 1 - with camera aperture

Scene 2 - with materials (metal, glass, lambert diffuse)

Scene 3 - with BVH tests

Scene 4 - with textures

Scene 5 - with lights

Scene 6 - with simple transform

Scene 7 - with Cornell box

Scene 8 - with transforms playground