Also, if the light shader could have one more kind of node - a node that gives the distance to the light, then we could implement any distance based falloff we want using math nodes.

We do have the position of whatever is being lit, and I used to that to create inverse square falloff lights back in Poser 5, using math nodes. But you had to type in the coordinates of the light into one of the nodes every time you moved it. If we even just had an LP (light position) then combined with P I could do it.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)