When designing just about anything, Shading is a
necessity. It gives an image a lot of realism which is always
needed.
These 2 images show the difference. The first
one isn't shaded, and the second one is, see that difference? Pretty big
huh? Just about every object needs to be shaded in an image, or it will
lack dimension.
This shows the very simple process for shading
a simple object. 1: Shows the object , looks cheesy doesn't it? 2: You
need to shade one side with a dark color. 3: Shade the opposing side with
a lighter color.. Its that simple.