UV Slicer WASM

[!WARNING]
This project is in early development. The API may change before a stable 1.0 release. Use with caution in production.

Overview

This WebAssembly library converts bitmap image data into various resin 3D printer slice formats, optimized for browser-based applications. Similar in functionality to UVTools' converter, this library brings format conversion capabilities directly to web environments.

Key Features

• 🌐 Browser-first Design: Runs entirely in the browser via WebAssembly
• 🖼️ Multi-format Support: Convert to/from common resin printing formats
• ⚡ SIMD Accelerated: Optimized performance using WebAssembly SIMD
• 🔄 Parallel Processing: Web Worker support for multi-threaded conversions
• 🧹 Zero-dependency: Pure C++ compiled to WASM with clean JavaScript interface

Supported Formats

Input Formats

• Raw bitmap data (Uint8Array)

Output Formats

• .prz (Phrozen)
• ...

Installation

NPM

npm install uv-slicer-wasm

Usage

Basic Conversion

import { init } from "uv-slicer-wasm";
import wasmUrl from "uv-slicer-wasm/lib/wasm/uv-slicer.wasm?url";

const wasm = await init(wasmUrl);
const result = wasm.encodePrzImage({ data: data, useColorDiffCompression: useColorDifferenceCompression });

Performance

Typical conversion times on modern browsers:

| Resolution | Format | Single-thread | 4 Workers | SIMD | | -------------- | ------ | ------------- | --------- | ---- | | 8K (7680x4320) | .prz | 300ms | 80ms | 30ms |

API Reference

SliceConverter Class

declare interface EmbindModule {
    encodePwsImage(_0: any): any;
    encodePw0Image(_0: any): any;
    encodePrzImage(_0: any): any;
}

export declare function init(wasmURL: string): Promise<UVSlicerModule>;

export declare type UVSlicerModule = WasmModule & EmbindModule;

declare interface WasmModule {
    _main(_0: number, _1: number): number;
}

export { }

Building from Source

Build Steps

git clone https://github.com/your-repo/uv-slicer-wasm.git
cd uv-slicer-wasm

# Build WASM
mkdir build && cd build
emcmake cmake ..
cmake --build . -j32 --clean-first

# Build JS wrapper
npm install
npm run build

Browser Compatibility

• Chrome 87+ (with WebAssembly SIMD support recommended)
• Firefox 83+
• Edge 89+
• Safari 14.1+

For best performance, enable WebAssembly SIMD support in your browser flags.

License

MIT License

Contributing

Contributions are welcome! Please see CONTRIBUTING.md for guidelines.

Support

For issues or feature requests, please file an issue on our GitHub repository.