Autodesk 12812-051462-9011 User Guide 3 - Page 730

values of Extrusion Strength, scale the amount of displacement. When Object Independent is off, this value is disregarded. Default=1.0. Extrusion Strength Controls the height of the displacement. This value is a multiplier: at the default value of 1.0, the map's effect is unchanged. Greater values increase the effect of the map, and lower values decrease it. Default=1.0. Extrusion Map Click to display the Material/Map Browser on page 5290 and choose a map to use for the displacement. Displacement maps apply the gray scale of the map to generate the displacement. Lighter colors in the 2D image push outward more strongly than darker colors, resulting in a 3D displacement of the geometry. Direction Strength Controls the strength of the direction shader. Default=0.0. IMPORTANT Adding a direction shader has no visible effect unless you set Direction Strength to be greater than its default value of zero. (Direction Strength values less than zero have no effect.) Direction Map Click to display the Material/Map Browser on page 5290 and choose a shader to use for the map direction. The direction of the displacement is perturbed according to the RGB values of the shader output or map pixels. Red values offset in the U axis, Green values offset in V, and Blue values offset in W (using the object-local UVW coordinates). Shaders rollout The controls on this rollout let you assign a map or shader to the Factor or Direction Strength parameters. Click the button for a component to display the Material/Map Browser on page 5290 and assign the map or shader. Use the toggle at the left to turn the effect of the map off or on. The button to the right of each main shader button is for shaders that can return multiple parameters. If a shader that returns multiple parameters is assigned to the component, the button's tooltip shows the parameter name. Clicking the button displays a Connect Parameter To Shader dialog on page 5981, which lets you change which parameter is being used. IMPORTANT UV Coordinate on page 6013 and XYZ Coordinate on page 6017 are the only shaders with multiple return values provided with 3ds Max. You might encounter multiple return values in shaders provided with other shader libraries or custom shader code. mental ray Shaders | 5985