Autodesk 12812-051462-9011 User Guide 3 - Page 280

■ Amount spinner The spinner at the left sets the amount of bump mapping to use. At 1000.0, bump mapping has its greatest effect; at lower amounts, the bumps are less pronounced; at 0.0, the bumps are not visible at all. Negative values reverse the direction of the bump effect. Range: -1000.0 to 1000.0. ■ On/off The check box between the spinner and the map button is an on/off switch. When on, the map is used in the material. When off, the map is not used. Displacement controls These controls assign a displacement map on page 5487 to the material. To assign a map, click the oblong button (labeled "None" by default). This displays the Material/Map Browser. In the Browser, choose the map type, and then click OK. If you choose Bitmap as the map type, an additional dialog prompts you to choose the particular bitmap file to use. While a map is assigned to the material, its name appears as the map button's label. ■ Amount spinner The spinner at the left sets the amount of displacement mapping to use. At 1000.0, displacement mapping has its greatest effect; at lower amounts, the displacement is less pronounced; at 0.0, the displacement are not visible at all. Negative values reverse the direction of the displacement. Range: -1000.0 to 1000.0. ■ On/off The check box between the spinner and the map button is an on/off switch. When on, the map is used in the material. When off, the map is not used. Intensity controls These controls assign an intensity map to the material, modulating the material's brightness. The map is treated as a black-and-white scale of intensity values. TIP Applying a low-frequency Noise map on page 5886 to the intensity can help reduce the "computer-generated" look of a texture, and add a natural feel to surfaces such as bricks and carpets lit by daylight. To assign a map, click the oblong button (labeled "None" by default). This displays the Material/Map Browser. In the Browser, choose the map type, and Architectural Material | 5535