9

930 Chapter 8: Modifiers
Shrink-wrap mapping is useful when you want to
hide the mapping singularity.
Shrink-wrap projection
Box—Projects the map from the six sides of a box.
Each side projects as a planar map, and the effect
on the surface depends on the surface normal.
Each face is map ped from the closest box surface
whose norma l most closely parallels its own
normal.
Boxprojection(shownonaboxandonasphere)
Face—Appliesacopyofthemaptoeveryfaceof
an object. Pairs of faces sharing a hidden edge are
mapped with the full rectangular map. Single faces
w ith no hidden edge are mapped with a triangular
portion of the map.
Face projection
XYZ to UVW—Maps 3D procedural coordinates to
UVW coordinates. This "sticks" the procedural
texture to the surface. If the surface stretches, so
does the 3D procedural map. Use this option with
pro cedural textures, like Cellular (page 2–1664)
Currently, XYZ to UVW cannot be used with
NURBS objects and is disabled if a NU R BS object
is selected.
Note: In the Material Editor’s Coordinates rollout
for the map, set S ource to Explicit Map Channel.
Use the same map channel in the m aterial and
UVW Map modifier.
A sphere with a 3D procedural texture is copied, and the copies
are stretched.
Right: Using X YZ to UVW on the object enables the 3D
procedural texture to stick and stretch with the surface.