9.5.2

952 • CHAPTER 18
TEXTURE MAPPING • 953
Selection
Selection enables you to use different materials on different parts of the same object. This is a
convenient way to add, for example, labels to objects. First of all you need a Selection tag:
 Select the object, select the Polygons tool and select the Live Selection
tool.
 Select several polygons (if you selected a primitive object, you must rst
convert it to polygons using Functions > Make Editable).
 Choose Selection > Set Selection to create a Polygon Selection tag.
 On the Basic Properties page in the Attribute manager, enter a meaningful
name for the Polygon Selection tag.
 If the object does not yet have a texture, apply a new texture (e.g. drag the
material from the Material manager and drop it on to the name of the object
in the Object manager). The Texture tag’s settings will appear in the Attribute
manager. Enter your settings, such as the projection type and tiling, then enter
the name of the selection into the Selection box.
When positioning a texture on a selection, you may nd it helpful to hide the
unselected surfaces. You can hide them using Selection > Hide Unselected.
Projection
The Projection setting determines how the texture is projected or mapped onto a surface. The
projection surface is independent of the real surface of the object, although often it has the same
basic shape. UVW mapping xes the projection on to the surface points of an object so that when
the object surface is deformed (like a ag would be in the wind), the texture deforms with it. The
best mapping type to use depends on the shape of the object to which you apply it. For examples and
details, look up ‘mapping, types of’ in the index.