Autodesk 12812-051462-9011 User Guide 3 - Page 521

Clamp When on, this parameter limits the values of the colors to no greater than 1.0. Turn this on when you're increasing the RGB Level, but don't want the map to appear self-illuminated. Default=off. NOTE If you set the RGB Offset to a value greater than 1.0 while Clamp is on, all colors become white. Alpha from RGB Intensity When on, an alpha channel is generated based on the intensity of the RGB channels in the map. Black becomes transparent and white becomes opaque. Intermediate values are translucent according to their intensity. Default=off. Enable Color Map Turn on to use the Color Map. See "Color Map group." Default=off. Output Amount Controls the amount of the map being mixed into a composite material. Affects the saturation and alpha value of the map. Default=1.0. RGB Offset Adds to the RGB values of the map colors by the amount set by the spinner, which affects the tonal value of the colors. Eventually the map becomes white and self-illuminated. Lowering the value decreases the tonal value toward black. Default=0.0. RGB Level Multiplies the RGB values of the map colors by the amount set by the spinner, which affects the saturation of the color. Eventually the map becomes fully saturated and self-illuminated on page 8122. Lowering the value decreases the saturation and makes the map colors grayer. Default=1.0. Bump Amount Adjusts the amount of bumpiness. This value has an effect only when the map is used as a bump map. Default=1.0. For example, suppose you have a map instanced for both the Diffuse and the Bump components. If you want to adjust the amount of bumpiness without affecting the Diffuse colors, adjust this value, which changes the amount of bumpiness without affecting the map's use in other material components. Color Map group At the bottom of the Output rollout, the Color Map group is inactive until you turn on Enable Color Map. 5776 | Chapter 19 Material Editor, Materials, and Maps