> In my documentation it says "To determine if a point is inside a
> triangle mesh, POV-Ray shoots a ray from the point (wich one,
> the one inside or outside the mesh or the inside_vector??) in some arbitrary
> direction. If ...." and so on. It tells me that I can specify the direction
> of that vector but it does not tell me on what basis.

it shoots a ray from the point that has to be checked in the direction of
inside_vector.

> If it would just say "As inside_vector choose any point inside the mesh."
> it would make sense to me (provided that is really what the documentation
> means).
It isn't if I understand you correctly...
And if I'm not mistaken :)

cu!
--
camera{location-z*3}#macro G(b,e)b+(e-b)*(C/50)#end#macro L(b,e,k,l)#local C=0
;#while(C<50)sphere{G(b,e),.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1
;#end#end L(y-x,y,x,x+y)L(y,-x-y,x+y,y)L(-x-y,-y,y,y+z)L(-y,y,y+z,x+y)L(0,x+y,
<.5,1,.5>,x)L(0,x-y,<.5,1,.5>,x)               // ZK http://www.povplace.be.tf

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