Howdy folks,   I have ported a wonderful simplification algorithm written in c to babylonJS. It is based on http://www.cs.cmu.edu/afs/cs.cmu.edu/user/garland/www/Papers/quadric2.pdf and http://voxels.blogspot.de/2014/05/quadric-mesh-simplification-with-source.html . What can you do with it? It can be used to automatically create LOD objects for meshes (if the user has time for that) directly in the browser.   It is surprisingly fast - it is reducing ca. 130000 triangles to 65000 in less than 5 s