Texture and Light for Architectural Exteriors - 3D for Graphic Designers - page 407

On the DVD
Videos for the creation of the metallic textures as well as other elements in this chapter are included on
the DVD.
Another good type of metal to look at is a surface that features anisotropic reflections . These are reflec-
tions that are stretched in some way. This stretching can be either unidirectional or multidirectional. In its
simplest form, the Anisotropy setting stretches reflections based on a UV map—positive values stretch re-
flections along the vertical (V), and negative values stretch along the horizontal (U). Figure 11-23 shows a
blurred material with Anisotropy set to 0%, 100%, and -100%.
Figure 11-23: Anisotropic reflections stretch reflections based on the UV.