Several special effects, such as film grain, depth of field, and lens simulations, are available as rendering effects. Other effects, such as fog, are provided as environment effects. Also available in the environment settings are exposure controls, also known as tone mappers.
The fog environment effect adds atmosphere to a street scene.
In 3ds Max, rendering effects and environments are accessed from a single Environment and Effects dialog.
You apply effects and environments by using the Environment and Effects dialog.
Rendering Effects enable you to add post-production effects without having to render the scene to see the results. Through the Effects panel on the Environment and Effects dialog, you can add various effects and view them prior to final rendering of an image or animation.
Environment displays the Environment panel, which is used for setting up atmospheric and background effects.