Good point. If someone knew how to produce such images, why didn't he make more or try to further develop the process?
Also why go to so much trouble, when he could likely have produced a believable fake by means more commonly used during the period.
I've always wondered this about the shroud; why does everyone assume that IF it's not the burial shroud of Jesus, then it must be a fake designed to LOOK LIKE the burial shroud of Jesus.
How come it's never assumed to be just an artist's representation done for art's sake, and not with the intent of fooling people.
This is not a question to provoke anyone, I'm genuinely curious as to why the seemingly obvious answer is never mentioned.
Because he wanted to fool scientists 700 years in the future who had discovered the embedded 3D information with a NASA terrain analyzer.