How to draw one point, two point and three point perspective. Also a note about curvilinear perspective

The number of points in a perspective, refers to the number of vanishing points.

One point perspective is the sort of perspective used to draw street scenes. Also useful for interiors.

Two point perspective is a simple perspective often used to draw a house.

Three point perspective is used most often to draw medium sized objects such as tables.

Straight line perspective is not really what the eye sees. Perspective is a way of explaining what we see and presenting it on paper in a realistic way.Curvilinear perspective is what you see through a fish eye lens…and also what you see all the time except your brain straightens out the bendy lines automatically. It is the nearest to the truth…but looks weird on paper.If you were in helicopter half way up a skyscraper and looked out the window so that you could see the top of the sky scraper and the bottom at the same time you would notice curvilinear perspective. But the walls of the sky scraper are straight – so this couldn’t be right. It is a visual paradox.