Fog and Mist are volumetric textures and can be used to create special effects in your model, either globally or when applied to individual objects.
To apply Fog or Mist globally, you must use the Environment palette. These effects can be created or edited in the Resource palette, but all global effects, including Fog and Mist are applied in the Environment palette. Other global effects available on this palette include global light, wind, gravity, backgrounds and ground planes. See the Lights and Environment chapter.
Fog and Mist are applied globally by selecting them in the pop-up lists available in the Air tab of the Environment palette.
To apply Fog or Mist to an object, the effects must be contained within a single-sided object. They can be combined with other textures if the texture is transparent.
For example, you could use a transparent glass texture and also apply a Fog. The end result would be a glass object filled with fog. To apply Fog, Haze or Mist to an object, use the Textures tab of the Resource palette.
Fog and Mist are somewhat similar; this tutorial will get you started. We will insert a few objects, apply a global Fog, select a Ground Plane, and then render the final image.