Related Softimage shader: Lume Beam
The Lume Beam shader creates quick-to-render atmospheric effects such as volumic light beams and halos from selected light sources in your scene. Rendering speed is achieved by eliminating shadow calculations, which means that when shadows are necessary, you are responsible for creating shadow-casting geometry for the beam's area of effect.
This shader prefers light sources with an origin, directional lights (such as infinite lights) do not work as well. Also, note that the Lume Beam shader ignores the attenuation properties of the light.
Creates a light list to specifiy which lights should produce the effect. For more information, see Using Light Lists [Direct Illumination].
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