Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
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Warnock’s Algorithm<br />
• How to determine that case 4 applies (no<br />
polygon penetration)?<br />
– Check for depth values of all planes of the polygons<br />
involved at the four corners of the square area<br />
– If a surrounding polygon wins at all four depth<br />
values<br />
© Machiraju/Zhang/Möller<br />
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