Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
Visibility and Hidden Surface Removal
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Scanline: scan example 2<br />
• At scanline y = b: AET has AB, AC, FD, FE<br />
– Render background color<br />
– At AB: invert in-out flag of ABC<br />
– Render “in” polygon ABC using information<br />
from PT<br />
– At AC: invert in-out<br />
flag of ABC<br />
– Render background<br />
– Repeat for FD & FE<br />
– Next scanline<br />
© Machiraju/Zhang/Möller<br />
59
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