So, the image here that forms the basis of the animation was actually determined from various "depth" data on the Shroud, where they could actually determine the "distance" away from the Shroud of the various features of Christ and were therefore able to construct the 3D image. According to Ray Downing, who put together the 3D image, it was based on some 3D encoding that "shouldn't be there". So much for the clowns who kept claiming this was a medieval forgery. I still recall Wojtyla insisting "publish it" (with it referring to the conclusion it was a Medieval forgery based on fake carbon dating)