Faeez Shabbir

rgsplat

Shipped

3D Gaussian Splatting in Rust: give it a video, get a 3D scene you can render in real time.

Role
Solo.
Timeline
2026
Stack
Rust, Tokio, Rayon, wgpu, nalgebra, COLMAP, ffmpeg, PyO3
Status
Shipped

01 / The problem

Gaussian Splatting turns ordinary video into a 3D scene, but the reference code is Python and CUDA research code. I wanted to understand the method end to end, so I wrote the whole pipeline in Rust.

02 / Decisions

  1. Gradients by hand

    The CPU rasterizer has a hand-written backward pass for colour, opacity, position, scale and rotation, checked against finite differences.

  2. GPU where it helps

    An optional wgpu compute pass projects the Gaussians on the GPU for fast previews. Training stays on the CPU so it runs anywhere.

  3. Easy to try

    Pre-built binaries for Linux, macOS and Windows, standard .ply and .splat output, and optional Python bindings.

03 / Results

  • Open source under MIT, with release binaries for three platforms.

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