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Yes it'll never turn out as good because you're no longer painting a face; you're painting a poorer 2D representation of a face

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What if a 3D scan were taken of the subject, and the artist then made the painting while viewing the 3D representation in some kind of augmented reality setup?

That would be 3D but still effectively painting from a "photo".

But then you're adding in several more processing layers away from reality: 1) the digital scan won't pick up the details sufficiently 2) the AR rendering will again strip a lot of detail

It'd also be incredibly difficult and straining for your eyes of focussing on a canvas and then on an AR image

his painting looked exactly like the photo. So it's like a painted version of the photo. It was very realistic. And like I mentioned, the craft of painting was great. But he took the time to take a nice portrait with a camera so he can paint it.

Since I'm a photographer, I guess I didn't get why he would need to copy a photo exactly.

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