3DGaussian-splat-LSY

.lsy file format is a lightweight, highly compressed solution for representing 3D Gaussian Splat (3DGS) data derived from .ply or .splat files. This project provides tools to efficiently convert, compress, and render 3DGS content, optimized for web platforms and resource-constrained devices.

I hope you give me a star, because I will integrate it into unity later

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✨ Features

✅ Convert .ply to .lsy Efficiently compress and convert large .ply point cloud files into .lsy format with quantization, clustering, and optimized binary structure.

✅ Web-based .ply/.splat to .lsy Conversion Support in-browser conversion of .ply or .splat files to .lsy format without server-side processing.

✅ Web-based .lsy File Preview with Gaussian Rendering Drag & drop .lsy files into a web page to visualize real-time 3D Gaussian Splat renderings, ideal for lightweight web applications, VR devices, and mobile environments.

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📁 File Size Comparison

Format	Typical Size	Compression Ratio
.ply	257 MB	Baseline
.splat	33.1 MB	7.63× smaller
.spz	27.5 MB	9.35× smaller
.sogs	20.8 MB	12.36× smaller
.lsy	15.7 MB	16.37× smaller

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🚀 Quick Start

1. Install Dependencies

pip install numpy tqdm numba plyfile

2. Convert .ply to .lsy

python convert.py input.ply output.lsy 

• colorTolerance (optional): Controls color clustering threshold, default is 100.

3. Web Usage

• Open the provided HTML demo.
• Drag .lsy files into the page to preview 3D Gaussian splats.
• You can also convert .ply or .splat files to .lsy in-browser (support for modern browsers).

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💡 Applications

• 3D Web Visualization
• VR/AR Lightweight Rendering
• Mobile 3D Content Streaming
• Real-time Gaussian Splat Previews

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📄 License

MIT License

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