The total color of an object at any given point is taken to be just the sum of ambient (Ca), diffuse (Cd), and specular (Cs) components. This may result in a saturation of the color components (i.e., a color component greater than 1.0), in which case the value is truncated to 1.0. This is OK for a white (or gray) light source, but may result in odd visual effects if a different color is used for the light source.