Visualizing the DOM by Alexander J. Vincent is licensed under a Creative Commons Attribution 3.0 United States License.
Based on a work at www.alexvincent.us.
VectorSpaceGL library available under MPL 1.1/GPL 2.0/LGPL 2.1. See Mozilla Public License website for details.
Popcorn library available at PopcornJS.org. GLMatrix library available at toji/gl-matrix GitHub website. WebGL-Utils library available at cvs.khronos.org.