Use could probably use my prop light shader in a volume box to do exactly what you are looking to do, set the falloff to quadratic or possibly a shader node for your own falloff. Don't forget that you can modulate the ray length too, and that is usually what is missing to get something like you described. Keep in mind that Poser point lights have no end setting in Superfly. They are treated as a normal light, so that wont work....

I prefer to just find an easier way than write scripts to do things. Controlling light with a light path node allows you to do some really cool effects that Poser point lights never dreamed of.

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