pbrt-rust

Another implementation of PBRT in Rust based on the PBRT book and the C++ version by Matt Pharr, Wenzel Jacob:

http://www.pbrt.org

Usage

> cargo build --release
> ./target/release/pbrt-rust --help
pbrt-rust 0.1
Parse a PBRT scene description file and render it

USAGE:
    pbrt-rust.exe [FLAGS] [OPTIONS] <input>

FLAGS:
    -c, --cat            Print a reformatted version of the input file(s) to standard output. Does not render an image
    -h, --help           Prints help information
    -e, --logtostderr    Print all logging messages to stderr
    -t, --toply          Print a formatted version of input file(s) to standard output and convert all triangle meshes
                         to PLY files. Does not render and image
    -V, --version        Prints version information
    -v, --verbose        set LOG verbosity

OPTIONS:
    -w, --cropwindow <x0> <x1> <y0> <y1>    Specify an image crop window
    -l, --logdir <logdir>                   Specify directory that log files should be writtend to. Default: system temp
                                            directory (e.g $TMPDIR or /tmp)
    -n, --nthreads <nthreads>               Use specified number of threads for rendering [default: 0]
    -o, --outfile <outfile>                 Write the final image to the given filename

ARGS:
    <input>    Path to PBRT scene description file

Example scenes

These are the first few scenes rendered using pbrt-rust. More scenes will be rendered as I fix the remaining bugs in the system if there are any

First scene rendered in pbrt-rust

Ganesha statue

Subsurface Scattering with dragon

Stochastic Progressive Photon Mapping

Country Kitchen by Jay-Artist

The Wooden Staircase by Wig42

Japanese Classroom by NovaZeeke

Ecosystem

TODO

• Render more scenes and fix any bugs
• Add more unit tests
• Do atleast some of the exercises in the book as most of them add new features to the system or improve performance
• Benchmark pbrt-rust against the C++ version
• Add a system profiler equivalent to the C++ version
• SIMD optimizations
• Add feature to create animations
• Update parts of the system to PBRTv4 when the book releases
• Implement parsing and rendering of blend files

Other implementations

You can find other implementations of PBRT in rust here

• https://github.com/wahn/rs_pbrt (Very well documented)
• https://github.com/abusch/rustracer

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.