SphereSet for lobe-based BRDFs

Pixel resolution: 2x2 - Image resolution: 400x400 - N.Samples = 92

Processor: Pentium 4 1.8GH 512MB Ram

CosLobePDF vs RotatedCosLobePDF vs DiskPDF

324_phong_hemisph.raw - 118.419 sec (1m. 58s. 419 ms.) 285640706208 cycles cycles
phong - 118.419 sec (1m. 58s. 419 ms.)		 324_blinn_hemisph.raw - 98.9659 sec (1m. 38s. 966 ms.) 238717441288 cycles cycles
blinn - 98.9659 sec (1m. 38s. 966 ms.)
324_lewis_hemisph.raw - 102.282 sec (1m. 42s. 282 ms.) 246716204964 cycles cycles
lewis - 102.282 sec (1m. 42s. 282 ms.)		 324_lafortune_hemisph.raw - 103.961 sec (1m. 43s. 961 ms.) 250765722676 cycles
lafortune - 103.961 sec (1m. 43s. 961 ms.)



SphereCosLobePDF vs SphereRotatedCosLobePDF vs DiskPDF

324_phong_sphere.raw - 96.2094 sec (1m. 36s. 209 ms.) 232068543576 cycles
phong - 96.2094 sec (1m. 36s. 209 ms.)		 324_blinn_sphere.raw - 92.2039 sec (1m. 32s. 204 ms.) 222406737416 cycles
blinn - 92.2039 sec (1m. 32s. 204 ms.)
324_lewis_sphere.raw - 80.1906 sec (1m. 20s. 191 ms.) 193429284884 cycles
lewis - 80.1906 sec (1m. 20s. 191 ms.)		 324_lafortune_sphere.raw - 79.417 sec (1m. 19s. 417 ms.) 191563216768 cycles
lafortune - 79.417 sec (1m. 19s. 417 ms.)

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