My understanding has been that a degenerate triangle is
just three points that don't really make a triangle.
Could someone please explain why POV-Ray complains that
the following smooth_triangle is "degenerate"? (v1,v2, and v3
come out fine as a plain 'flat' triangle).

#declare v1=<116.50351, 37.28418, -14.46650>;
#declare n1=<-0.87727, -0.19526, 0.43849>;
#declare v2=<73.18535, 44.36221, -1.11751>;
#declare n2=<-0.90956, 0.27350, 0.31289>;
#declare v3=<123.66611, 65.86183, 12.58927>;
#declare n3=<-0.8777, -0.19526, 0.43849>;

smooth_triangle{
	v1,n1,
	v2,n2,
	v3,n3     
}

Thanks for any help.

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