===== Linear Perspective =====

**Linear perspective** is a mathematical system for creating apparent depth and volume on a surface. Linear perspective has several aspects: 

  - Forms diminish in scale as they recede into the distance.
  - The point at which all forms completely disappear (are too small to see) is called a **vanishing point**.
  - In basic linear perspective (one-point and two-point perspective), the vanishing points are positioned at eye level, referred to as the **horizon line**.
  - A fixed viewing point is required.
One-point perspective requires a single vanishing point on the horizon line to which all lines receding into space converge. If a cube is depicted, the viewer will face a flat plane of the cube. Two-point perspective requires two vanishing points on the horizon line. If a cube is depicted, the viewer will face an edge of the cube. Three-point perspective requires three vanishing points - usually two of the vanishing points are on the horizon line and a third is above or below the horizon line.


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Two-point perspective\\ 
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Two-point perspective. \\ 
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(//In many cases, the vanishing points of 2+ point perspective will not be within the picture format.//)