Visible surface determination

Visible surface determination PowerPoint PPT Presentation


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Problem outline. Given a set of 3D objects and a viewing specification, we wish to determine which lines or surfaces are visible, so that we do not needlessly calculate and draw surfces, which will not ultimately be seen by the viewer, or which might confuse the viewer.. Simple example?. . . . . .

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Visible surface determination

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1. Visible surface determination

2. Problem outline Given a set of 3D objects and a viewing specification, we wish to determine which lines or surfaces are visible, so that we do not needlessly calculate and draw surfces, which will not ultimately be seen by the viewer, or which might confuse the viewer.

3. Simple example…

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