Refers to the tactical and visual quality of a surface.

“Light and dark.” The technique of blending values to show the bending of light around a form in order to represent the illusion of three dimensions on a two-dimensional surface. Leonardo da Vinci is considered to have perfected the technique. Also used by Rembrandt.

A crisp line between a bright highlight and a deep shadow.

The comparative lightness and darkness of any color. Also referred to as chromatic value.

Creating the illusion of three dimensional form through the use of light. In drawing and rendering, modeling means to duplicate these light patterns on a flat surface.

QUIZ PROBLEM #2   Question: Is the molecule shown here polar or nonpolar?  Instructions:  Type your answer in the textbox below. Type your explanation for how you know this in the textbox below. Show all supporting work on your “work” page.  Label which problem it is (#2). TIP:  Save time by only writing out the explanation once.  Don’t write it on your work page and then type it into the textbox.  Compose your answer directly in the textbox.

Lines of hatching that overlap, crossing over one another in different directions, usually at perpendicular angles.

The differences between light and dark in a composition.

Select the definition of each staging format.

What does autographical mean? Which of the fine arts does it pertain to?