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Enable – Turns the Sphere Fade on and off.

Empty Color – Specifies the color outside the Sphere Fade. For more information, see the Empty Color example below.

Falloff – A radius amount that is used to blend the inside of the Sphere Fade with the Empty Color. 

Affect Alpha – Controls whether or not the alpha channel is affected.

For more information, see the V-Ray SphereFade Gizmo page.

Enabled – Turns the atmospheric effect on or off.

Sun – Specifies the V-Ray Sun object in the scene that the Aerial Perspective effect is connected to.

Distance – Specifies the distance, in meters, at which the fog has absorbed 90% of the light coming from objects behind it. Lower values make the fog appear more dense, while larger values reduce the effect of the aerial perspective. 

Height – Controls the height of the atmosphere layer, in meters. Lower values can be used for artistic effects. 

Inscattered Light – Controls the amount of sunlight scattered from the atmospheric effect. The default value 1.0 is physically accurate; lower or higher values could be used for artistic purposes.

Filter Color – Specifies a filter color for the fog. Note that the fog color depends on the color of the sky.

Affect Environment – When disabled, the atmospheric effect is applied only to camera rays that hit actual objects, but not to rays that hit the sky. This is because the V-Ray Sky texture already takes into account the amount of scattered sunlight. However, it is possible to enable this option for artistic effects, especially with low visibility ranges. 

Affect Background – Specifies whether the effect is applied to camera rays that hit the background (if a background other than V-Ray Sky is used). This option is enabled by default, but some interesting effects are possible when disabled.

Affect Alpha – Specifies whether the aerial perspective affects the Alpha channel.

Primary Visibility – When disabled, the effect appears perfectly transparent to camera rays.