Special purpose bundles
Special purpose bundles are lightweight bundles to handle the most common cases for applying attributes to 3-D graphics. These classes are easy to construct and use. Some provide default values for the pen width and pen balance, and overloaded constructors so that you can use shaders.
- The default pen width is 1.0 world-coordinate units.
- The default pen balance is kCenterFrame. Pen balance is the position of the frame relative to the border of the geometry. See the heading Chapter 7 for more information.
- Shaders define the effect of illumination on surface colors. See the heading "Colors and shaders" on page 306 for information on shaders.
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