Properties

Scattering Distribution

This determines how directional the volumetric scattering is; a value of 0, means light scatters equally in all directions, while a value close to 1 causes scattering predominantly in the direction of the light (you have to be looking at the light to see its scattering).

Albedo

This is the overall reflectiveness of the participating media. Clouds, fog, and mist, which are based on water particles, have an Albedo close to 1.

Extinction Scale

Controls how much the participating media blocks light.

View Distance

The distance from the camera over which Volumetric Fog will be computed. There are a limited number of Z slices in the volume texture, so pushing out the View Distance will increase under-sampling artifacts near the camera.

Override Light Colors with Fog Inscattering Colors

When enabled, uses the Fog Inscattering Color, Directional Inscattering Color, and Inscattering Texture properties to override the light color with Volumetric Fog.

Lights

Each light’s contribution amount to the scene and whether it shadows the fog can be controlled using the following properties.