Common Shadowing Lamps Options

Common shadowing options for lamps

All lamps able to cast shadows (Lamp, Spot, Area and Sun) share some options, described below:

This Layer Only: When this option is enabled, only the objects on the same layer as the light source will cast shadows.
Only Shadow: The light source will not illuminate an object but will generate the shadows that would normally appear.; This feature is often used to control how and where shadows fall by having a light which illuminates but has no shadow, combined with a second light which doesn’t illuminate but has Only Shadow enabled, allowing the user to control shadow placement by moving the “Shadow Only” light around.

Shadow color: This color picker control allows you to choose the color of your cast shadows (black by default).; The images below were all rendered with a white light and the shadow color was selected independently.

Red colored shadow example

Green colored shadow example

Blue colored shadow example

Although you can select a pure white color for a shadow color, it appears to make a shadow disappear.

Doc:2.6/Manual/Lighting/Shadows/Properties