9.5.2

958 • CHAPTER 18
TEXTURE MAPPING • 959
Cubic applied to a
cuboid.
Frontal applied to a
cuboid.
Flat (left) and Spatial
(right).
Flat Mapping (left) and
UVW Mapping (right).
Difference between Flat
and UVW.
Shrink Wrapping.
Spherical
Spherical mapping projects the texture onto the object in a spherical form. Spherical projection is
rarely suitable for at objects. There is distortion with cylindrical objects also.
Cylindrical
This mapping type projects the texture onto the object in a cylindrical shape. Cylindrical projection
is rarely suitable for at objects. It also leads to distortion when used with spherical objects. When
Cylindrical is applied to a cylinder, notice how the pixels near the top and bottom of the texture map
are pulled inwards on the caps. You should apply separate textures to the caps.
Flat
Flat mapping projects the texture onto the object in a planar direction. Flat projection tends to be
used with at objects only. The texture is soon distorted when applied to a sphere or cylinder, as the
examples demonstrate.
Cubic
Cubic mapping projects the texture onto all six sides of a texture cube.