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Integrator
Lets you choose the Integrator to use for the render. The default, PxrPathTracer is a fine choice for most rendering situations.
See the page for each integrator for information about their settings:
Default Ray Depths
Max Specular Depth: Number of bounces for reflections and refractions. A value of 1 or 2 is sufficient unless you need multi bounce effects or have panes of glass or windows. This attribute can be overridden on individual objects.
Max Diffuse Depth: Number of diffuse bounces for indirect illumination. A value of 1 is usually sufficient, larger values are slower. This attribute can be overridden on individual objects.
Filter
Filter: The filter for rendered pixels. The box, triangle, disk, gaussian, and blackman-harris are softening filters while catmull-rom, sinc, mitchell, separable-catmull-rom, lanczos and bessel are sharpening filters. Separable-catmull-rom is a good compromise.
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