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The second problem is that spotlights are set up with a maximum cone angle of 160 degrees (giving a maximum deviation from center of 80 degrees). But some of the IES lights produce non-zero light between 80 and 90 degrees. In fact, some go all the way to 180 degrees. (They emit light up and down.) Such lights must be modeled as two spot lights in Poser. I'm not trying to tackle that yet. I'm just trying to get the angle UV mapping to go out to 180 or at least really close.

As someone who doesn't really know anything about this, why not use a point light in cases above 160 degrees?

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)