# sphrs sphrs is a general purpose spherical harmonics and (regular and irregular) solid harmonics library in Rust. For details on how to use sphrs, please consult the documentation, either for the [latest stable release](https://docs.rs/sphrs/latest/sphrs), or for the current [main branch](https://argmin-rs.github.io/sphrs/sphrs/). ## Acknowledgements This crate is heavily inspired by Google's [spherical-harmonics](https://github.com/google/spherical-harmonics) library and follows the mathematics documented [here](https://basesandframes.files.wordpress.com/2016/05/spherical_harmonic_lighting_gritty_details_green_2003.pdf). ## References * Robin Green, ["Spherical Harmonic Lighting: The Gritty Details"](https://basesandframes.files.wordpress.com/2016/05/spherical_harmonic_lighting_gritty_details_green_2003.pdf) * [Spherical harmonics (Wikipedia)](https://en.wikipedia.org/wiki/Spherical_harmonics) * [Solid harmonics (Wikipedia)](https://en.wikipedia.org/wiki/Spherical_harmonics) ## License Licensed under either of * Apache License, Version 2.0, ([LICENSE-APACHE](https://github.com/argmin-rs/argmin/blob/main/LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) * MIT License ([LICENSE-MIT](https://github.com/argmin-rs/argmin/blob/main/LICENSE-MIT) or http://opensource.org/licenses/MIT) at your option. ### Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. License: MIT OR Apache-2.0