High Altitude Clouds

2026

Enabled

Turns the high altitude clouds layer on or off.

High altitude clouds simulate a layer of cirrus clouds for added realism.

High Altitude Clouds: Enabled Disabled

 

Seed[0..2147483647]

Randomizes the position of the clouds. Change this value until you find a nice starting point for your scene.

Changing the Seed

 

Density[0.00..+∞]

Controls how thick the clouds appear to be, functioning similarly to an opacity slider.

Density: 0 - 10

 

Altitude (m)[0.00..+∞]

Fixed Unit: Meters

Controls at what height the high altitude cloud layer appears in meters.

Altitude: 6000 - 12000

 

Scale[0.00..+∞]

Controls the size of the high altitude clouds texture.

Low values will reveal texture tiling.

Scale: 20000 - 64000

 

Position

Offset X (m)[-∞..+∞]

Offset Z (m)[-∞..+∞]

Fixed Unit: Meters

Controls the position of the clouds in meters, this is good for nudging clouds in a particular direction until they are framed exactly how you want them in your shot.

Use Wind Speed and Wind Direction controls when animating the high altitude clouds.

Changing the X and Y Offset

 

Wind Speed[0.00..+∞]

Controls how fast the clouds move across the sky. Higher values move the clouds a greater distance each frame. A value of 0 leaves the clouds stationary. The clouds move along the Wind Direction.

Wind Speed: 50 300 1000

 

Wind Direction[0..360°]

Controls the direction the clouds move across the sky.

Wind Direction: 0 45 0 - 360

 

Shading

Color

Controls the color of the clouds

 

Scale[0.00..+∞]

Controls how much light is scattered which affects the brightness of the clouds. Higher values result in more scattered light and brighter clouds while lower values make them darker.

 

Anisotropy[-1.00..1.00]

Controls the direction light scatters inside the clouds within a -1 to 1 range. In the real world the composition of a volume can cause light to scatter in specific directions, clouds frequently exhibit forward scattering (positive values) due the inclusion of water and ice molecules.

The default anisotropy of 0 results in isotropic scattering, when the light scatters equally in all directions. Positive values increase the chance for forward scattering, when more light is scattered in the direction the light rays are already traveling. Negative values increase the chance for back scattering, when more light is scattered back towards the location of the light source.

Anisotropy: -0.7 to +0.7
Front lighting
-0.7 to +0.7
Overhead lighting
-0.7 to +0.7
Back lighting

 

Direct Lighting Scale[0.00..+∞]

Controls how intensely the clouds are affected by the Sun or the brightest parts of a Dome Light.

Direct Lighting Scale: 0 - 4

 

Ambient Lighting Scale[0.00..+∞]

Controls the indirect lighting contribution, most notable on the underside of the clouds. This can be heavily affected by the Sun & Sky's Ground Color.

Ambient Lighting Scale: 0 - 0.5