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Arithmetic on Components

This step applies only to RGBA component and depth component groups. Each component is multiplied by an appropriate signed scale factor: RED_SCALE for an R component, GREEN_SCALE for a G component, BLUE_SCALE for a B component, and ALPHA_SCALE for an A component, or DEPTH_SCALE for a depth component. Then the result is added to the the appropriate signed bias: RED_BIAS, GREEN_BIAS, BLUE_BIAS, ALPHA_BIAS, or DEPTH_BIAS.

David Blythe
Sat Mar 29 02:23:21 PST 1997