Art lessons - learn about shadows and transparency in painting
- Create an oval and smear with shades of red allowing a transparency around the edges. You could do this
with a semi-transparent crimson red like alizarin.
The rest is pure fiction and applied logic ...
a) Light source (top left) determines the position of the shadow as well as the position of the reflected light on
the stone.
b) The highlight on the stone tell us the much.
As it is sharply focused we know the stone is
smooth and shiny (very reflective). Here it is a
window - reflected twice (the second time gives
the stone greater transparency). By its position
we also know the window is the main light
source for the object and a line drawn from the
observer to the highlight would reflect at an
angle and pass out the window. This tells us
that the object's surface is at an angle (round)
and that the window is high left. This
information should tally with the position of the
shadow.
c) The horizontal bands on the ring band define its texture and roundness. The elliptical shadow reinforces this
assumption.
Here again this object is not drawn from anything real. It is a pure construction using logic and remembered
observation.
STUDENT ACTIVITY: Find examples of gold, silver, chrome and copper and describe them in terms of
reflectiveness, edge and color (light hue and dark hue).
http://www.geocities.com/~jlhagan/lessons/edge-sat.htm (2 of 3)1/13/2004 3:45:33 AM