2010

Plain background
■ Graduated - the background of the 3D scene is filled with a smooth gradient between the two selected colors.
Graduated background
■ Horizon - the background of the 3D scene is split across the horizontal plane giving the effect of a sky and
the ground. The resulting artificial horizon gives you an indication of your orientation in the 3D world. By
default, the artificial horizon respects the world up vector as set in File Options ➤ Orientation.
NOTE The artificial horizon is a background effect, and does not include a physical ground plane. So, for example,
if you navigate ‘under the ground’ and look up, you will not see the back of a ground plane, instead you will see
the model from beneath, and a background filled with the sky color.
Horizon background
To set a plain background
1 Click Tools ➤ Background.
2 In the Background Settings dialog box, select Plain in the Mode drop-down list.
3 Select the required color from the Color palette.
4 Review the new background effect in the preview box, and click OK.
To set a graduated background
1 Click Tools ➤ Background.
2 In the Background Settings dialog box, select Graduated in the Mode drop-down list.
3 Select the first color from the Top Color palette.
Select Background Effect | 93