README.md

Lumo

Lumo is a CPU based multithreaded rendering engine. Made with the goal of learning Rust and physically based rendering :)

Features

• Path tracing and bidirectional path tracing with MIS
• Cook-Torrance microfacet BSDF with Beckmann and GGX
• .obj and .mtl file parsing
• Surface area hierarchy based kD-trees

Gallery

Usage

Once the repository is cloned, the examples/ folder contains scenes, that can be ran with cargo:

cargo run --example hello_sphere

The renderer can be configured either through its setter methods in the examples or partially through the CLI:

Usage: hello_sphere [-s <samples>] [-t <threads>] [-d] [-b]

Optional CLI configuration of renderer. Renderer setter methods have priority.

Options:
  -s, --samples     number of samples per pixel (defaults to 1)
  -t, --threads     number of threads used (defaults to all)
  -d, --direct      use direct light integrator instead of path tracing
  -b, --bdpt        use bidirectional path tracing instead of path tracing
  --help            display usage information

References

• Physically Based Rendering
• Moving Frostbite to Physically Based Rendering
• Eric Veach's PhD Thesis