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### Finishes

The final part of a POV-Ray texture is the `finish`. It controls the properties of the surface of an object. It can make it shiny and reflective, or dull and flat. It can also specify what happens to light that passes through transparent pigments, what happens to light that is scattered by less-than-perfectly-smooth surfaces and what happens to light that is reflected by surfaces with thin-film interference properties. There are twelve different properties available in POV-Ray to specify the finish of a given object. These are controlled by the following keywords: `ambient`, `diffuse`, `brilliance`, `phong`, `specular`, `metallic`, `reflection`, `crand` and `iridescence`. Let's design a couple of textures that make use of these parameters.

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