For a complete understanding of 1,2,3 point perspective!

1,2,3 point perspective

​What is the difference between 2-point perspective and 3-point perspective?

It is the difference in angle of gaze of the observer looking at the object.

​When most of us explain perspective, one point is easy to understand. This is because it is easy to think of a railroad track, a train track, or a one-way road in the forest.

​And from 2 or 3 point perspective, confusion will arise. However, this can be easily distinguished by understanding the concepts below. That is, you draw a picture using two vanishing points and then check if there is one more vanishing point in the picture. As shown below, in the case of two-point perspective, you can see that it is drawn at a right angle without a vanishing point.
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​However, starting from point 3, another vanishing point appears as shown below. You usually get this angle when you look up at a building up close. When you look at a large building from below, you will notice that it appears to be getting closer to the sky, as if the tip of the building is reaching into the sky.
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​And the case where there is a third vanishing point below the eye level is easy to understand if you think of us as if we were flying over the city in a helicopter. When viewed from a helicopter, the building appears to be falling into the ground like a sharp nail. This is because there is another vanishing point acting below.