Doug just has to be patient for Rod to answer to the question of just what Kite Network physics he simulated. I am guessing kite lattice dynamics in gravity and wind, at least, were simulated using Rhino 3D and add-ons like Grasshopper, Flexhopper, or Kangaroo.
If Doug did his own computer graphics, as Rod did, rather than hire a 3D artist, then great, the “rendering-for-hire” presumption fails. Doug seems to concede his modeling did not include any of the physics he defines.