one-point perspective
two-point perspective
vanishing point
horizon line - eye level
one point
1. draw front plane edges were parallel to the picture plane (paper edges)
2. line to the vanishing point,
3. line for back and side of the cube.
two-point
1. draw a vertical line below the horizon line
2. draw a diagonal line to the vanishing point.
3. draw the side of the cube
4. draw the top
5. erased lines we didn't need them.
