2009

scanline renderer. You do not need to turn on Final Gather for light from IES
Sun to render.
The Daylight system on page 5139 combines the two daylight components of
sun and sky in a unified interface.
TIP If you use the IES sun or sky with the Logarithmic Exposure Control on page
6740, turn on both the Daylight and Exterior options. This will provide greater control
for properly mapping the higher energy levels to RGB colors. In addition, it is
important to set the Physical Scale to the brightest light source in your scene. If
the IES Sun is used, set the Physical Scale to 90000 cd.
Interface
On Turns sunlight on and off in the viewport.
Targeted Applicable only when you add the IES Sun light directly, rather than
as part of a Daylight system on page 5139. When on, the light is targeted and
you can change the target distance by moving the target. The distance between
the light and its target is displayed to the right of the check box. When off,
you can set this value directly.
Cast Shadows Sets whether the sunlight casts shadows or not.
Intensity The intensity of the sunlight. The color swatch to the right of the
spinner opens the
Color Selector on page 391 to set the color of the light.
Typical intensities in a clear sky are around 90,000 lux.
NOTE Intensity is set automatically and cannot be set manually if the sun is under
the control of a daylight system.
Sunlight and Daylight Systems | 5155