Sketching-People

VALUE & VOLUME
In order to effectively add value to a form, you really have
to understand it three-dimensionally. Being able to break
down a form into planes helps in figuring out what values
should be used. Value strengthens the sense of volume
because it shows how the surface of the form faces
or turns away from the light source.
PLANES FACING LIGHT ARE WHITE
This head, reduced to simple planes,
shows how light can play across a form.
The planes make it easier to apply light
and shade because they clearly show
how a form turns away from the light.
All planes that directly face the light are
white, and they get darker the more they
turn away. In the three examples above,
I used Adobe Photoshop to apply light
and shade to the pencil drawing. You can
see how clearly the light gives the drawing
a strong sense of volume.