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Part III: Modeling Basics

Surface properties
Below the Edit Geometry rollout are several rollouts of options that enable you to set additional properties
such as vertex colors, material IDs, Smoothing Groups, and NURMS Subdivision.

Vertex Surface properties
The Vertex Properties rollout in Vertex subobject mode lets you define the Color, Illumination, and Alpha
value of object vertices. The color swatches enable you to select Color and Illumination colors for the
selected vertices. The Alpha value sets the amount of transparency for the vertices. After you assign colors,
you can then recall vertices with the same color by selecting a color (or illumination color) in the Select
Vertices By section and clicking the Select button. The RGB (red, green, and blue) values match all colors
within the Range defined by these values.

Cross-Ref
You can find more information on vertex colors in Chapter 31, “Painting in the Viewport Canvas and Rendering
Surface Maps.” n

Polygon and Element Surface properties
For Polygon and Element subobjects, the Polygon Properties rollout, shown in Figure 13.30, includes
Material IDs and Smoothing Groups options. The Material IDs option settings are used by the Multi/Sub-
Object material type to apply different materials to faces or polygons within an object. By selecting a poly-
gon subobject, you can use these option settings to apply a unique material to the selected polygon. The
Select ID button selects all subobjects that have the designated Material ID, or you can select subobjects
using a material name in the drop-down list under the Select ID button.

Cross-Ref
You can find more information on the Multi/Sub-Object material type in Chapter 16, “Creating and Applying
Standard Materials.” n

FIGURE 13.30
The Polygon Properties rollout includes settings for Material IDs, Smoothing Groups, and Vertex Colors.

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