super quick superquadric
Implementation of Barr's superquadric surface point visualization
in HTML5/JavaScript and threejs

@author odestcj / https://github.com/odestcj

Change view by click-and-drag mouse

Increase shape parameters with r,s,t keys;
Decrease shape parameters with R,S,T

Increase scaling parameters with a,b,c keys;
Decrease scaling parameters with A,B,C

Still need better lighting and tesselation of points into a mesh