I read a book about it being done by Da Vinci. The authors replicated it with materials available to him in his time.
Posited here & there Da Vinci got some old material,( not out of the question), & did the work. Also mentioned he knew the royal Turin family. The motivation for doing it was to get more people to line up & make donations at the Church.
Interestingly Da Vinci knew and was friends with the royal family of
Turin so it’s not like it’s a far fetched reach to assert this.
http://www.itsjustlife.com/turin.html
An image from the site linked by Black hornet:
The aspect ratio of the Shroud has been altered in the above image.
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My own side-by-side comparison of Leonardo de Vinci's Vitruvian Man and the Shroud of Turin. Allowing for the fact that on the Shroud the feet are extended downward, and it is difficult to determine the exact top of the head on either image, I think it is fairly obvious there are several points of incongruence between de Vinci's sketch and the image on the Shroud. The most obvious of these are the pelvic alignment and the pectoral alignment.
Shroud as a positive • de Vinci's Vitruvian Man • Shroud as negative
This image only shows the dorsal portion of the Shroud. The Shroud is over twice as tall, including the ventral portion, than the image above. The Shroud is approximately fourteen feet in length and a little over three feet wide.
The Man in the Shroud
Shroud • Leonardo da Vinci, 16th C • Aggemian, 20th C • Icon, Mt. Sinai Egypt, 6th C • Shroud
It seems da Vinci may have been influenced by the Shroud in his depiction of JJesus, but da Vinci did not create the Shroud of Turin.