Types of shaders
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Different Types of Shaders
There are four types of shaders:
For these classes of shaders, the defaults are Plain Color, Matte, None, and None, respectively. Plain Color generates a uniform surface color, Matte generates a simple shaded surface. None in the last two classes produces opaque objects and no bumps.
Shaders are either procedural or precaptured texture maps. Procedural shaders generate a pattern by executing a procedure or program. In other words, these effects are generated from scratch and do not use a prestored image. In contrast, the precaptured texture maps use an image file which is mapped onto a surface, either for painting the image on the surface, or for using the image as a trans- parency filter or as a bump map.
The texture maps can be captured photographically, can be previously rendered images, or can be images created in a paint program. The procedural shaders are fur- ther distinguished into two types: wrapped or solid shaders. In the shaders menus, wrapped and solid shaders are grouped together and are separated by a line. The grouping in each shader menu is discussed in more detail at the beginning of each respective section.
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