your pencil to measure angles for perspective
a corner of a room
the part of a room where the corner meets the top of the
room. Place your pencil horizontally across this point
just below this juncture.
sure your pencil is horizontal by holding your pencil
in both hands with your elbows locked.
the top of the corner you should be able to see
the angles of the sidewalls above the pencil. (Think
of your pencil as a straight line rather than a
3-d object in space.)
want to observe the width of the angles and transfer
them to your paper. The corner will always be a
move your pencil to the bottom of the corner just
above the juncture of the walls and floor and measure
these lines to your paper. You should have a drawing
at this point that looks like an open book. Make
sure the angles are going in the same direction
as the illustration to the left of this text.
you should understand that every object or thing on the
walls will have the same type of perspective developing.
The difference is that as you work down the wall the angles
will be getting more toward a true horizontal until you
reach a spot called "eye level". (Eye level
is straight out from your eye) At this point you will
not be able to observe angles but everything on the wall
will seem to be level or horizontal.
in mind that doors and windows as they approach eye-level
will have horizontal lines. The tops and bottoms will
have slanted lines approaching the angles of the top and
bottom of the walls of the room.