Using the PxrOcclusion Integrator. Scene courtesy of Christina Faraj, Mike Altman, and Rosie Cole.
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| Description | |
|---|---|
| Uniform | Rays are not weighted in any particular direction in the hemisphere above the shading point. |
| Cosine | Cosine distribution is a commonly used to render ambient occlusion. |
| Reflection | Generate samples based on the the reflection lobe of the assigned material. Materials with only a diffuse BRDF will have a result similar to the cosine setting above. |
Cosine Spread
Sample spread of rays when using cosine distribution. A value of 1.0 gives a perfect Lambertian distribution.
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Num Samples
This option generates fixed samples at each shaded point. More samples may help resolve noise in fewer camera samples, but may reduce performance at higher numbers.
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