Sun – Specifies the Sun object in the scene that the Aerial Perspective effect is connected to.
Visibility Range – 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 denser, while larger values reduce the effect of the aerial perspective. For more information, see the Visible Distanceexample below.
Atmosphere Height – Controls the height of the atmosphere layer in meters. Lower values can be used for artistic effects. The value is in meters and is converted internally based on the current SketchUp units. For more information, see the Visible Height example below.
Light Multiplier – 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 – Affects the color of the unscattered light.
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 VRaySky 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. For more information, see the Affect Environment Rays example below.
Affect Background – Specifies whether the effect is applied to camera rays that hit the background (if a background other than VRaySky is used). Normally this option should be disabledThis option is enabled by default, but some interesting effects are possible when this option is enableddisabled.
