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Shadows – When enabled (the default), the light casts shadows. Turn this option off to disable shadow casting for the light. The value moves the shadow toward or away from the shadow-casting object(s). Higher values move the shadow toward the object(s), while lower values move it away. If this value is too extreme, shadows can "leak" through places they shouldn't or "detach" from an object. Other effects from extreme values include Moire patterns, out-of-place dark areas on surfaces, and shadows not appearing at all in the rendering. See the Shadows example below.

Affect diffuse – Determines whether the light affects the diffuse portion of the materials. The value controls the light's contribution to the diffuse portion of the materials. See the Affect Diffuse example below.

Affect specular – Determines whether the light affects the specular portion of the materials. The value controls the light's contribution to specular reflections. See the Affect Specular example below.

Light include/exclude – Specifies a list of objects to be included in or excluded from illumination. Objects are added to the list using the Pick scene object(s) tool.

Shadow include/exclude – Specifies a list of objects to be included in or excluded from shadow-casting. Objects are added to the list using the Pick scene object(s) tool.

Pick scene object(s) (Image Added) – Selects objects and adds them to the include/exclude list.

Delete selected object(s) from the list (Image Added) – Removes the selected objects from the include/exclude list.

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