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You can select an image file to use for cutouts mapping. Transparent areas are
fully transparent.
When you use transparency for frosting or translucent effects, reflectivity is
maintained. Use a cutout in addition to make the material take a particular
shape or pattern. Cutout areas do not reflect.
Self Illumination Map
Self illumination maps make portions of an object appear to glow.
White areas of the map render as fully self illuminating. Black areas render
with no self illumination. Gray areas render as partially self illuminating,
depending on the grayscale value. Self illumination means that the glowing
area is not affected by lights in the drawing (its ambient color component
goes away), and does not receive shadows.
Bump Map
A bump map simulates a bumpy or irregular surface.
You can select an image file or procedural maps to use for mapping. Bump
mapping makes an object appear to have a bumpy or irregular surface. When
you render an object with a bump-mapped material, lighter (whiter) areas of
the map appear to be raised and darker (blacker) areas appear to be low. If the
2086 | Chapter 45 Materials and Textures