Raytracer in Rust with WASM and Multithreading

This raytracer implements Ray Tracing in One Weekend in Rust, with support for WASM targets and multithreading.

Packages

raytracer-core

This is the core library of the raytracer, and exposes enough to be able to compose and render a scene in a thread-safe manner. It also includes some WASM helpers that are included when the [wasm] feature is enabled.

raytracer-cli

This is a CLI for the above that renders a test scene with 8 threads, and outputs an image in PPM format over STDOUT.

Building

In the root directory:

$ RUST_LOG=debug cargo run --release > hello_world.ppm

raytracer-web

This implements a WASM front-end for ray-tracer core, and renders a similar test scene using a WASM binary.

Building

$ npm run build # supports --watch as well
$ npm start # starts an http-server to vend build artifacts

Open http://localhost:8080/ in a new browser tab to view the results.

Note- opening the page with dev tools open will significantly slow down WASM execution, presumably because the binary is not getting optimized at loadtime when devtools is open. I recommend not opening dev tools until after loading the page.