hyper-splat-engine

Zero-copy, virtualized WebGPU 3D Gaussian Splatting and spatial AI engine with distance LoD tile streaming and proactive VRAM paging.

Features

• Virtualized VRAM Manager (VRAMVirtualizer): Proactively monitors GPU memory allocation pressure and automatically pages cold/distant splats out to RAM/storage before encountering WebGPU device loss.
• EWA 3D-to-2D Covariance Projection: High-precision Elliptical Weighted Average screen-space projection with low-pass anti-aliasing clamping.
• Pure WGSL Billboard Pipeline: Compute-driven billboard quad vertex expansion and radial Gaussian falloff fragment evaluation.
• Zero-Copy Streaming: Designed for streaming multi-million Gaussian Splat captures without blocking the browser main thread.

Installation

npm install hyper-splat-engine

Quick Start

import { compute3DCovariance, project2DCovariance, VRAMVirtualizer } from 'hyper-splat-engine';

// Manage 512 MB WebGPU allocation budget
const virtualizer = new VRAMVirtualizer(512 * 1024 * 1024);

// Evaluate 3D Gaussian covariance
const cov3D = compute3DCovariance([1.0, 1.0, 1.0], [0, 0, 0, 1]);
const cov2D = project2DCovariance(cov3D, [0, 0, 5], 800, 800);

License

Licensed under the Apache License, Version 2.0. See LICENSE and NOTICE for details.