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The following simple renders illustre how "Shading Samples" control the various lighting elements all at once.
| AA=2x2, Shading Samples = 16 | AA=2x2, Shading Samples = 64 | AA=2x2, Shading Samples 256 | |
|---|---|---|---|
| 52.431u 0.350s 0:14.20 371.6% --1.27409e+07 | 205.033u 1.717s 0:58.14 355.5% -- 4.87044e+07 | 799.045u 8.565s 3:41.80 364.1% – 1.91247e+08 | 809.283u 8.845s 3:46.35 361.4% – 1.94816e+08 |
A very important feature of the Unified Budget Sampling is that sampling quality is independent of the number of lights. Consider the following two renders. One is done using 3Delight the other is using PrMan.