9.5.2

214 • CHAPTER 7
OBJECTS MENU • PRIMITIVES • 215
Orientation
Choose a value from this drop-down list to set the relief map’s initial orientation in space. This gives
you a quick way to turn the object on its axis.
Spherical
Enable this option if you want to create a globe. The radius of this globe is dened by half of the width
value (the rst Size value). The height of the relief above the globe’s surface is taken from the height
value (the second Size value).
Figure 1: Spherical disabled (left) and enabled (right).
Figure 2: The image used (top), the sphere relief from the front (left) and the rear (right).
A general problem of this wrapping operation is that, depending on the image used, you may get
discrepancies at the edge of the relief, especially when using a non-tileable texture. Figure 2, above,
illustrates this problem. Choose your images carefully and be prepared to experiment.