Artists have been wrong for centuries to express ``shadows'' in paintings

It seems that there was almost no shadow in paintings until
The Art of the Shadow: How Painters Have Gotten It Wrong for Centuries | The MIT Press Reader
https://thereader.mitpress.mit.edu/the-art-of-the-shadow-how-painters-have-gotten-it-wrong-for-centuries/
It seems that there are many cases where the expression of shadows is ``physically incorrect, but visually it looks correct to humans''. Below is a fresco painting ' Monument of Tribute ' created in the 1420s in the Bunracci Chapel in Florence, Italy. The fresco appears to accurately depict the shadows of multiple characters.

However, if the building and people are actually arranged like in 'Tong-no-sen' and the light is shining so that the shadow extends to the left, the shadow will not look like a painting. If you look at the 3D model that reproduces the object of 'tribute money' created by Mr. Meeko Kuwahara, it is obvious that the shadow of the building should overlap the shadow of the person.

Furthermore, unnatural shadows are also written in the religious painting '

'

Der Sterbende, Epitaph des Heinrich Schmitburg , painted between 1472 and 1553, depicts two men standing in front of a large box. The shadow of the man on the right extends exactly from the ground to the box, but for some reason the shadow of the man on the left extends only to the ground and does not cover the box.
However, there are others, such as

In '


In '

Witz's depiction of shadows is not completely accurate, but it is a finer detail than other painters' depictions of shadows.
Triangular shadows were often used to express human shadows. Below is the shadow of the triangle drawn in '

Contrary to this, there are also those that express shadows with inverted triangles. It seems that the method of ``expressing shadows using triangles'' as described above was distorted at some point, and shadows were drawn with inverted triangles.

There are also shadows that extend from the left and right legs and connect like horseshoes. Below is 'Amor, Anteros and Amor Lethaeus' on the left, and 'Magerius' mosaic painting' drawn around the 3rd century on the right. In both paintings, you can see that the shadows extending from the left and right legs of the person join in the middle.

In addition, in '

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in Art, Posted by logu_ii