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ADOBE ATMOSPHERE
User Guide
The Sun tab lets you adjust the Sun's light.
Understanding Elevation and Azimuth
Elevation and Azimuth defi ne the position of the Sun on an imaginary sphere that encompasses an Atmosphere
environment. The position of the sun in the sky infl uences which objects are highlighted and the direction of shadows
that are cast.
Elevation can range from 90 degrees for a sun that is directly overhead to 0 for a sun at the horizon to –90 for a sun
shining directly below.
Azimuth describes the angle between the X-axis and a line drawn to the Sun. Values can range from –360 to 360
degress. Elevation and Azimuth values at sunrise would be 0 and 0. At high noon, the Elevation would be 90 and the
Azimuth would be 90. At sundown, the Elevation would again be 0, but the Azimuth value would be 180.
Setting Cone Angle, Brightness and Color
The Cone Angle value defi nes how the Sun light spreads. Higher values will result in a wider cone and softer shadows.
The Cone Angle value can range from 0 to 90. The Cone Angle value for the earth's sun is around 0.5.
The Brightness value sets the amount of light energy that is emitted by the sun. The higher the Brightness value, the
brighter the scene.
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