Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
1. Object <strong>and</strong> area coherence<br />
• Object coherence<br />
– if two objects are well separated,<br />
only one comparison is needed<br />
between objects <strong>and</strong> not between<br />
their component faces<br />
• Area coherence:<br />
– group of adjacent pixels likely<br />
covered by the same visible face<br />
© Machiraju/Zhang/Möller<br />
22