[Stop Animation]

Value and contrast are often dependent upon the texture of the the object being rendered. In the diagram above, you can see that the sphere on the left, although adhering to the characteristics of chiaroscuro, does not seem to have a graduated change in value. This is caused because the texture of the sphere is somewhat like that of a wound ball of string and there are additional values breaking across the surface. These lines help to create value and by overlapping the lines one can create lighter and darker value gradations (hatching and cross-hatching).

The cylinder at the far right has a slick reflective surface. In such a surface there is a broad value range, usually from bright white to black. The transitions between these extreme values is usually more sudden than on a matte or heavily textured surface. You will find that reflective surfaces placed in compositions with heavily textured objects will create interesting contrasts that compliment each other.