2008

Above: Excessive color bleeding
Below: Color bleeding eliminated by setting Color Bleed to 0.0
Rays/Sample The number of rays cast per sample (or pixel). Increasing this
value increases the smoothness of the effect, at a cost of render time.
Decreasing this value results in a grainier effect, but renders more quickly.
Default=250.
TIP To get a “first draft” preview of the effect of light tracing, reduce the value
of Rays/Sample and the Filter Size.
Changing the number of rays per sample
The higher the value, the less grain
5970 | Chapter 18 Rendering