2009

NOTE As this value increases, so does the quality of the blur. However, increasing
this value also increases the likelihood of missing small objects. To avoid this
problem, increase the value of Pass 1 Quality.
Increasing the Shadow Spread value softens shadow edges.
Shadow Bias The minimum distance from the point being shaded that an
object must be to cast a shadow. This prevents blurred shadows from affecting
surfaces they shouldn't.
NOTE As you increase the blur value, you should also increase the bias.
Jitter Amount Adds randomness to the ray positions. The rays are initially in
a very regular pattern, which can show up in the blurry part of the shadow
as regular artifacts. Jittering will convert these artifacts to noise, which is
generally less noticeable to the eye. Recommended values are 0.25 to 1.0.
However, very blurry shadows will require more jitter.
Shadow Types and Shadow Controls | 5121