Lights

Lights Lights are define by clicking on the title of the lights palette:

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By clicking New.. the following window appears:

A light has a name and can be Distant (parallel rays), cone (spot lights) or point. It can have a color, intensity, radius or angle, and may or may not cast shadows. The shadow option should be on only if shadows are visible and important because their calculations are intense and can cause time delays. Ray traced shadows are the most difficult so try using soft (Mapped) shadows instead. Lights can be moved (like objects) using the Move tool: