Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
2. Perspective Transform<br />
• Parallel projection - just check (x,y) values<br />
(need canonical volume!)<br />
• perspective - more work!<br />
• need to check if<br />
x 1 /z 1 = x 2 /z 2 <strong>and</strong><br />
y 1 /z 1 = y 2 /z 2 .<br />
© Machiraju/Zhang/Möller<br />
26