The texture manipulator modifies the 3D projection of a texture in an appearance before converting the texture to UV coordinates on the surface of the part.
Using
the Texture Manipulator is different from using texture parameters such as Tile,
Shift, and Rotation to adjust texture mapping. The latter parameters act in UV space
after you apply the projection to the part's surface.
The texture manipulator functions much like the transform manipulator except that
you use the texture manipulator on textures in appearances and you use the transform
manipulator on models.
Translation and rotation operate the same for both controls, but scale operates
differently with the texture manipulator.
These steps apply only to parts that have mapped appearances using textures.
To use the texture manipulator: