GPU Pro 4

2. Simulating Partial Occlusion in Post-Processing Depth-of-Field Methods 197

Homunculus (K = 17)Dragons (K = 22)

Pinhole Our method Accum. buffer

Figure 2.7. A pinhole rendering and DoF effects produced with our algorithm and the

accumulation-buffer method (256 views). The first row shows the scene Homunculus

(74,000 faces), and the second shows Dragons (6,000,000 faces). Renderings have the

resolution 1,024× 1,024, and 17 and 22 depth layers, respectively, have been used for our

algorithm. The lens settings are f =0.1, N =1.4, and it is focused at the stone wall in

the back (z

focus

=18.5) for Homunculus and at the foremost blue dragon (z

focus

=3)

for D