ply2splat

A high-performance Rust crate and CLI tool for converting Gaussian Splatting .ply files to the .splat format.

Features

• High Performance: Utilizes parallel processing (via rayon) for conversion and sorting.
• Fast I/O: Uses zero-copy serialization and large buffers for maximum throughput.
• Correctness: Implements the standard conversion logic including Spherical Harmonics (SH) to color conversion and geometric transformations.

Installation

From Source

git clone https://github.com/bastikohn/ply2splat.git
cd ply2splat
cargo build --release

The binary will be available at target/release/ply2splat.

Usage

ply2splat --input input.ply --output output.splat

Development

Requirements

• Rust (latest stable)
• Nix (optional, for reproducible environment)

Running Tests

cargo test

Fuzzing

The crate includes fuzzing targets to ensure stability against malformed inputs.

# Install cargo-fuzz
cargo install cargo-fuzz

# Run fuzzing target
cargo fuzz run fuzz_conversion

Development Environment

This project supports both Nix and Devcontainers for a reproducible development environment.

• Nix: nix develop will enter a shell with Rust and dependencies configured.
• Devcontainer: Open the folder in VS Code and accept the prompt to reopen in container.

License

MIT