Art seeing is shape seeing

Seeing art is seeing shape.
The image on retina is solely responsible for pleasure of seeing shape.
The retinal image is two dimensional and nobody bothers a photograph not being the real object.
Photographs of architecture is not three dimension but still enjoyable to see them as architecture.
As we can see it from many angles,the photographs can be taken from many angles.
Three dimensional art is replaceable for many single two dimensional views.
This is what the retina is doing.

Decades ago I went to see some Gothic cathedral just to be disappointed.
The main reason is that I could not find any good shots of view
 as I expected.
I realized that the photographs in the book of the cathedral are well  taken with much effort beyond the capacity of unprepared tourist.
Architecture is the mixture of functional part and artistic part which must be discovered.
To see an object, we may walk around it but to see its shape we have to stop and fasten the sight.
The image must be static in order to see it's geometric characteristics.

Unless each viewer sees exactly the same image, sound art theory can not be established.
This may be the meaning of Kant's comment that art of garden is painting.
Vasari considered that painting is the major art of the three arts: painting;sculpture; architecture.

Even binocular vision may be problem to see shape.
An art student closes one eye to see the proportion of a model ,
and the proportion is the well known characteristic of shape to give us pleasure of seeing.
There is no wonder all the stereoscopic device failed to maintain the initial popularity.

Art seeing is monocular.
A bower bird has two eyes each on the side.
He makes an ornamented garden to attract female birds.
He must be able to enjoy his garden with one eye only.
I used to know one eyed artist in London and I believe that he has no problem to see things artistically.

It is possible that organism developed the visual sense organ with pleasure sensation before  monocular organ became binocular
 and that the binocular organ was preserved for the convenience of catching food.
The capacity  of seeing shape with pleasant sensation can be very primitive.