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Kd-Tree Nearest Neighbor Search using WebGL



AUTHOR: Thomas Diewald

Date: 24.03.2013

website: www.thomasdiewald.com



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WebGL/JavaScript - KdTree Nearest neighbor Search - GL ES

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blog-post: http://thomasdiewald.com/blog/?p=1825 online-demo: http://thomasdiewald.com/javascript/webgl/PixelVoronoi_KdTree_v05/

Kd-Tree Nearest Neighbor Search. For each pixel, the distance to the nearest neighbor is stored in a "distance-map", which results in a voronoi-diagram. The NNS is done in the fragment shader. The kdTree is build in javascript.


  • (c) thomas diewald
  • This source is free software; you can redistribute it and/or modify
  • it under the terms of the GNU General Public License as published by
  • the Free Software Foundation; either version 2 of the License, or
  • (at your option) any later version.
  • This code is distributed in the hope that it will be useful, but
  • WITHOUT ANY WARRANTY; without even the implied warranty of
  • MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  • General Public License for more details.
  • A copy of the GNU General Public License is available on the World
  • Wide Web at http://www.gnu.org/copyleft/gpl.html. You can also
  • obtain it by writing to the Free Software Foundation,
  • Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.