The position of the camera divides the 3-D graphic into front facing to the projection plane and back facing to the projection plane. Only the front facing is seen by the person viewing the graphic. The backface culling functions let you determine whether the front facing and back facing portions are drawn, or only the front facing. By default, only the front facing portion is drawn. See the heading "Backface Culling" on page 322 for information on the backface culling functions.
Figure 207
shows the TGrafBundle3D functions for backface culling.
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