2008

Noise Filtering=Standard + Sky Portal
The above illustration is also improved by the realistic shadows cast by the
chair and table legs from the Sky Portal light.
Draft Mode (No Precalculations) When on, final gathering skips the
precalculation phase. This results in a rendering with artifacts, but begins
rendering more quickly, so it can useful when you want to do a series of trial
renderings. Default=off.
Trace Depth group
The Trace Depth controls are similar to those for calculating reflections and
refractions, but they refer to the light rays used by final gathering, rather than
to rays used in diffuse reflection and refraction.
Max. Depth Limits the combination of reflection and refraction. Reflection
and refraction of a light ray stop when the total number of both equals the
Maximum Depth setting. For example, if Maximum Depth equals 3 and the
trace depths each equal 2, a ray can be reflected twice and refracted once, or
vice versa, but it can’t be reflected and refracted four times. Default=5.
6112 | Chapter 18 Rendering