Copyright Goodheart-Willcox Co., Inc. Chapter 17 Materials in AutoCAD 471 The properties in the Waves category defi ne the pattern of waves. The Number property sets the number of wave centers that are generating the waves. The Radius property sets the radius of the circle or sphere from which the waves originate. The Len Min and Len Max properties defi ne the minimum and maximum interval for each wave. The Amplitude property can be thought of as the “power” of the wave. The default value is 1.00, but the value can range from 0.00 to 10000.00. A value less than 1.00 makes color 1 more dominant. For a value greater than 1.00, color 2 is more dominant. The Phase property is used to shift the pattern and the Random Seed property is used to redis- tribute the wave centers. The properties in the Transforms and Position categories are the same as described for a marble map. Refer to the Marble section for details on these properties. PROFESSIONAL TIP PROFESSIONAL TIP Remember, you can change the material swatch geometry in the materials editor, such as to a cube, sphere, or cylinder. Some maps, like a waves map, are easier to understand when displayed on a cube. Wood A wood map is a 3D map that generates a wood grain based on the colors and values you select. See Figure 17-34. When you specify Wood as the map for a property, the texture editor displays the properties for the map, Figure 17-35. A wood map is based on two colors. The Color 1 and Color 2 properties in the Appearance category are used to specify these colors, usually one dark and one light color. To swap the color defi nitions, pick the button next to the properties and select Select 2D or 3D distribution Set the colors Define the map position Define the waves Figure 17-33. Adjusting the properties of a waves map.