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Lighting Your Scene and Using Materials.
For mental ray renderer.
numbered polygons. Yes I know it's a bad example, sorry.
going across the top of the object, between the two screw holes, and the
square under the 'dome'.
The line is actually a refection of the groundplane......it's darker above the line
anywhere where our model is not.

The 'Square' is a logo, an image used as a 'Bump' map to give the impression
of an indented logo. There are lots of tutes about 'Bump' mapping if you are
unsure on how to do this. So, next we repeat this process for the other
materials used for the object, namely the 'Woofer' and the plastic 'pegs'.............
Page: 13.