Fog Dialog Box

Fog is primarily used as a special effect during presentations. Click on the Fog menu item within the Window menu to display the Fog dialog box.

Setting Fog

Use the Fog dialog box to apply Fog-like effects to your model. To apply Fog:

1. Check the Enable Fog checkbox. Fog might appear around your model (depending on your view of the model and the settings of the fog sliders).
2. Adjust the sliders. See Adjusting the Fog Sliders for further information.

Note - Fog sliders will move automatically when you change your point of view, such as when you zoom in or zoom out. As with real fog, the geometry will become more clear as you zoom closer to it, and less clear as you move away.

Fog Options

There are a few options in the Fog dialog box for configuring fog.

Display Fog

Check the Display Fog checkbox to display fog in the drawing area. Uncheck the Display Fog checkbox to hide fog.

Fog Sliders

The left-most fog slider determines where you want the fog to start relative to the camera (your view). Fog can begin right in front of the camera which is zero on the scale or further away from the camera. Move the left-most slider to the right to start fog somewhere beyond the camera.

The right-most slider determines where you want the fog to be at 100% strength (known as zero visibility). Move the right-most slider to the left to establish 100 percent strength closer to the camera (your view). Move the right-most slider all the way to the left to have zero visibility right in front of the camera and extending out to infinity (you wont actually be able to see your model at all and at any distance).

Use Background Color

Check the Use background color checkbox to use the currently configured background color as the fog color. Refer to the Background Panel section of the Styles Browser topic for further information on setting the background color.

Uncheck the Use background color and click on the color swatch to select a different color to be used as the fog color.

  Note - Use the OpenGL panel in the Application Preferences dialog box to set hardware acceleration before using fog.