Sky Content

Elevation
This sets the vertical position of the sun measured in degrees from 0 to 90 . A value of 0 puts the sun on the horizon. A value of 90 puts the sun directly overhead.

Turbidity
Is a measure of the number of particles in the sky (dust, moisture, etc). It affects the color and brightness of the sun and sky. A value of 0 will be a perfectly clear sky. A value of 10 will be hazy.

Albedo
Is the amount of light reflected from the planet's surface back into the atmosphere. A value of 0 represents a pure black ground. A value of 1 would be a white ground (desert). Please note that this is a very subtle effect.

Disc Size
The size of the sun. Increase this value to make the sun bigger. The brightness of the sun is automatically reduced to make the illumination from the sun the same when making this artistic change to the size of the sun.

Disc Visibility
Switch this on to see the sun.

Disc Falloff
This ramp can be used to soften the edges of the sun disc.

Energy Boost
Increases the brightness of the sun (but not sky).

Sky Visibility
Toggles the sky on and off.

Sky Alpha
A vertical alpha ramp controls the softness of the horizon, allowing artists to control the blend of the sky over any underlying content.