demiribr / skparallelreduce.js

Three.js GPU parallel reduction library

skparallelreduce.js

Introduction

This is a JavaScript / GLSL library for performing parallel reductions on the GPU in Three.js. It is useful if you need to do binary reduction operations, such as a sum, on the data of a GPU texture (e.g. THREE.DataTexture, THREE.WebGLRenderTarget etc), in parallel. The time complexity for the reductions is O(lg N).

Features

• Supported parallel reduction operations: sum
• Extract final reduced results out from GPU to CPU as floating-point values, if necessary

Examples

• Parallel Sum Reduction

Documentation

• 1.0.x

Browser Support

Tested only in Google Chrome (recommended) and Mozilla FireFox

License

Released under The MIT License (MIT)
Copyright (c) 2013 Skeel Lee (http://cg.skeelogy.com)