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"3d scanning is as old as humanity" - The Roman emperor Gluteus Maximus

Yes, The target ( of Scanning 3D objects).

But not the solution witch I bet, has had many differents solutions.

This one solution ( 'slices od 2D'), one century old, still used in 3D laser scanning and printing, is poised to have a more robust and fine grained one.

Ancient egyptians had 2d pantographs attached to linked turntables, enabling them to point in 3d.

It's possible, and one candidate explanation for how they were able to produce multiple identical immense statues at widely separated locations, but as far as I know nobody has found such a pantograph or turntable, nor drawings of it or writings about it, nor any other kind of evidence that this was the method they used.

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