Category: mental ray > Light
Shader Family: Light
Output: Color
The spot light is similar to the point light, except that it also supports angle attenuation based on the light direction.
It takes the light direction and the spread (the cosine of the outer boundary angle) from the light definition.
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The name of the shader node displayed in the render tree. Enter any name you like, or leave the default.
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The light color.
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When on, enables shadows. The light will be diminished or blocked by occluding objects between the light and the illuminated
object.
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Only has an effect if shadows are enabled. Blends from the shadow color (0, the default) to the light color. Values greater
than 0 let the light penetrate occluding objects. At 1, no shadows appear.
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When on, enables distance attenuation such that the light intensity begins to fall off at the distance and fades to the distance , where no light remains.
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Only has an effect if distance attenuation is enabled. It specifies the distance from the light where attenuation begins.
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Only has an effect if distance attenuation is enabled. It specifies the maximum distance reached by the light.
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Specifies the cosine of the angle of the inner cone that illuminates with full intensity (degrees). The value must be in the
range 0 (hemisphere) to 1 (null diameter). The cone cannot exceed the spread angle from the light definition.
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