2009

Softness The softness of shadow edges. The default value of 1.0 accurately
matches the softness of real solar shadows. Lower values make the shadows
sharper and higher values make them softer.
Softness The number of shadow samples for the soft shadows. If it is set to 0,
no soft shadows are generated. Default=8.
Inherit from mr Sky group
NOTE mr Sun can inherit parameters from mr Sky even if the latter is off.
Inherit from mr Sky Uses the equivalent settings from the mr Sky Parameters
rollout for the remaining mr Sun Parameters rollout settings. Default=on.
For further information, see
Common Parameters on page 5164.
Nonphysical Tuning group
These controls are available only when Inherit From mr Sky is off.
Red/Blue Tint Provides artistic control over the redness of the sky light. The
default value of 0.0 is the physically correct value (calculated for a 6500K
whitepoint), but can be changed with this parameter, which ranges from 1.0
(extremely blue) to 1.0 (extremely red).
Saturation Provides artistic control over saturation of the sky light. The default
value of 1.0 is the physically calculated saturation level. Possible values range
from 0.0 (black and white) to 2.0 (extremely high saturation).
mr Sun Photons rollout
Use these settings to focus global-illumination photons on an area of interest.
For example, if youve modeled a huge city as a backdrop, but are rendering
only a room interior, you probably dont want mental ray to shoot photons
over the entire city, with the result that only a few will find their way into
the room.
Sunlight and Daylight Systems | 5175