Linear perspective is the mathematical method of drawing or painting to create depth and space to a flat plane. It was thought to have been discovered around the renaissance period by the architect Filippo Brunelleschi and documented by the architect and writer Leon Battista Alberti. The three important elements to create this system are parallel lines, a horizon line and a vanishing point. To use this system you must first imagine the surface in which you are drawing as an open window, you then have a horizon line running along at eye level (where sky meets ground). Then a vanishing point located roughly around the centre will be the point in which all parallel lines will meet. These lines also known as Orthogonal lines, they are used to help you align building walls or tiles when drawing.
Transversals are lines that cut across two or more (usually parallel) lines and the distance point is a new point (the eye) on the horizon situated either to the left or right of the vanishing point.
Leonardo Da Vinci is one of the artists around the Renaissance period who used this system of drawing to create many paintings. The painting ‘The Last Supper’ uses one point linear perspective which is where all the lines meet to one place (vanishing point) on the horizon.
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https://www.britannica.com/art/linear-perspective
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