shading

The act of producing shadows. Two shading models are used in OpenGL. Called "smooth" or Gouraud shading vs. flat or polygon shading.

Smooth shading produces the illusion of curved surfaces.

Shad"ing, n.

1.

Act or process of making a shade.

2.

That filling up which represents the effect of more or less darkness, expressing rotundity, projection, etc., in a picture or a drawing.

 

© Webster 1913.