[trox]

Aside from color and translucency, an original artwork shows also the relief. It can tell much about the creation process of a painting and adds additional texture. Furthermore, some pigments were expensive and hard to work with prior to the 19th century such that artists used it very sparingly.

[disillusioned]

This stood out to me the very first time I saw Starry Night at MoMa. The paint is so thickly layered, and you can see the individual brush strokes in stark relief.

[Guillaume86]

It makes me wish for a VR app with ultra HD reproductions, you could have normal maps and other 3d techniques to add another level of fidelity, the scale is also not a problem in VR.