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Pool, and a man sitting on a raft. The picture is clearly drawn from the photograph. The photograph of the pool was not taken at the same angle from which we look at the drawing of this pool. Therefore, I “see” that the surface of the sides of the pool and the surface of the water in the pool are not parallel to the surface on which the drawing is drawn. The pool in the picture is located, under a strong slope from us. Unless of course, this pool has a rectangular shape. If the pool is drawn in the form of a trapezoid, then it is drawn correctly. I have never seen pools in the form of a trapezoid, but this does not mean that such pools do not exist. Exceptions, as you know, confirm the rule. I decided that a rectangular pool was drawn, but with errors in perspective. For me, this is another example where you can show why you get such errors in drawing the perspective of a 3D drawing.

This pattern is drawn on rectangular tiles. Due to the presence of seams between the plates, we can find the horizon of the site on which this picture is drawn. We continue the seams of rectangular plates until they intersect with each other. So we find the horizon of the platform on which the pool is drawn.

In the left picture.

The original drawing with the painted horizon of the site.

In the right picture.

Search for the horizon of the original pool photo. From the lines of the side edges of the pool we can find the horizon of the original photograph of this pool. The horizon in the photograph with which the pool was drawn is located at the intersection of the sides of the pool. We continue the line of side sides of the pool. The continuation of the sides intersects on the horizon. The horizon of the original photograph in which this drawing was drawn is at the height of the shoulders of the seated person.

It can be seen that the horizon of the site and the horizon of the drawn pool do very much not coincide. Therefore, similar errors are obtained in the perspective of the drawing.

In the left picture.

Conditions for shooting the photograph with which they drew the pool. The photograph of the pool (according to which this picture is drawn) was taken from a lower height. A photograph of the pool was taken from the height of the shoulders of a seated person.

In the right picture.

Conditions for shooting the picture. We look at the figure from the height of human growth (a standing person). Therefore, it seems that the pool is not parallel to the surface on which it is painted. But even if you sit down and look at the picture from a small height, this error can no longer be corrected.

In the left picture.

Original drawing with non-coincident horizons of the site and drawing.

In the right picture.

An example of what this pool should look like if you draw it in compliance with the laws of perspective (geometry). The continuation of the side sides of the pool intersect on the horizon line of the site. Correcting the geometry of objects is relatively simple. It is especially simple to correct (and draw) the perspective (geometry) of rectangular objects. Unfortunately, the “geometry” of a seated person is more difficult to fix. The person (just redrawn from the photo), in the right figure, turned out to be tilted back. Since the horizon of the photograph of a person remained in the same place, at the height of his shoulders. To correct the perspective of the “geometry” of a person, you need to photograph a person from the right distance, at the right angle, from the right height.

In the left picture.

Original drawing with non-coincident horizons of the site and drawing. In the right picture.

The original drawing of the pool is left, while a new platform is drawn, the horizon of which coincides with the horizon of the pool. The photograph on which this drawing was drawn looked something like this. A pool with its horizon coinciding with the horizon of the site looks more correct. In my humble opinion.

The discrepancy between the real horizon and the horizon in the figure can sometimes be understood. Example: An artist paints a hole (pit, mainsail) in asphalt. In hole, the artist draws his own, separate horizon of the picture, different from the real horizon of the site. This kind of dips (grottoes) with its own horizon, a very common and popular form of 3D drawing.

In the left picture is the original.

In the right picture.

A possible version of the picture with a dip (pit) in the plates. In a dip, behind a person’s back, one can see his own horizon of this drawing. The pool is located in a dip, very peculiar. The pool side closest to us lies at the site level, and the far (rear) side of the pool lie well below the site level.

If there is no second artificial horizon in the drawing, the perspective of the drawing should be oriented to the real horizon. Then the picture will not look strange in terms of the laws of perspective.

But this is not the only mistake in the perspective of this picture.

In the left picture.

The distance of taking a preliminary photograph of the pool. The distance from which the pool was photographed is small. You can understand this by comparing the sizes of the near (front) and far (rear) sides of the pool in the photo. The larger on photograph the difference in the length of the front and rear sides of the pool, the smaller the distance from which the pool was photographed.

In the right picture.

The distance the picture was taken. The distance from which they look at the picture more. You can understand this by comparing the sizes of the near (front) and far (rear) sides of the pool in the photo. The smaller the difference in the length of the front and rear sides of the pool, the more the pool was photographed from a greater distance.

If you draw a pool (in the right picture) less in the depth of the picture, as deep as in the original picture, the difference in the distances to the camera will increase even more.

Never point out errors

if you don’t know how to fix them.

Bernard Show

Following the advice of Bernard Shaw.

I point out errors, knowing how to fix them, or how to prevent such mistakes.

How to correctly build the perspective of such drawings, step by step, and will be available in one of the next books of this course. Or in one of the lessons on my Patreon page.

https://www.patreon.com/ArtistFarit

In the chapter or exercise “Parallelepipeds’.

These were drawings with obvious errors in the perspective, which, I hope, can be seen by all, or most viewers, most beginners and experienced artists.

Further there will be less noticeable errors in building the perspective of the picture. I deliberately did not draw the details of these drawings, so that it was harder to recognize. In order not to offend the artists who made these mistakes. These are very talented artists, I have not yet learned how to draw like them.

But I saved the distortion of perspective in the form in which the original drawings had them.