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- Most light sources are infinitely small points which emit light. Point
- light sources are treated like shapes, but they are invisible points from
- which light rays stream out. They light objects and create shadows and
- highlights. Because of the way ray tracing works, lights do not reflect
- from a surface. You can use many light sources in a scene, but each light
- source used will increase rendering time. The brightness of a light is de-
- termined by its color. A bright color is a bright light, a dark color, a
- dark one. White is the brightest possible light, Black is completely dark
- and Gray is somewhere in the middle.
-
- The syntax for a light source is:
- light_source {
- <X, Y, Z>
- color red #, green #, blue #
- }
- where X, Y and Z are the coordinates of the location and 'color' is any co-
- lor or color identifier.
-
- Point light sources in POV-Ray do not attenuate, or get dimmer, with
- distance.
-