ONE-POINT
PERSPECTIVE Lines representing 'horizontal'
surfaces - not 'straight-on' to the viewer - disappear to one
point on an imaginary horizon.
Start by drawing in the horizon with one 'vanishing-point' somewhere
along its length. (VP1) All other lines are drawn vertically on
the paper/page.
TWO-POINT
PERSPECTIVE
Start
by drawing in the
horizon with two 'vanishing-points', VP 1 and VP 2.
Horizontal
lines all disappear at these vanishing-points whilst all other
'upright lines are drawn vertically on the page. The roof
of the building seen here would be a 'special case' and can be
drawn within a 'box-frame'. Imagine the roof area
as being in a rectangle… the apex-ridge of the roof is midway
along the top of this rectangular box. Join the ridge-ends to
the tops of walls.
Many
similar and more complicated shapes can be constructed using
this technique of 'box-framing'
- sometimes called 'crating'
THREE-POINT
PERSPECTIVE This differs in that now there
are three vanishing points to draw in. Notice how some of
them may be off the area of the page. Notice too that as
they get closer together the shape they contain becomes much more
exaggerated. If you want a very dramatic look… similar to
a wide-angle' photograph then use VP's very close together.
If you want a shape that looks much 'calmer' and much more normal
then use VP's that are far apart.