- Select a camera and open its Property palette.
- Turn on its front or back clipping plane.
- Set the clipping plane offset value.
- Click Render tab
Render panelEnvironment. 
At the Command prompt, enter RENDERENVIRONMENT. - Turn on Enable Fog and set the color of the fog or depth cueing.
Light colors are typically used for fog, and dark colors are used for depth cueing.
- Set the Near and Far Distance values to specify where the fog starts and ends.
- Set the fog or depth cue opacity with the Near and Far Fog Percentage values. Click OK.
- Render the model.