"Warp" <war### [at] tagpovrayorg> wrote in message news:3bc91851@news.povray.org...
> Batronyx <bat### [at] cadronhsacom> wrote:
> : Does anyone know of a way to determine the normal of a surface dynamically
at
> : render time?
>
>   I don't think there's any.
>
>   (The POVman patch probably has a way, though.)
>
> --
> #macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
> rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
> ],13),8)-3,10>#end blob{N(array[6]{11117333955,
> 7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

I was afraid of that. Thanks for the suggestion. I was really hoping for a 3.5
solution though. In the case of the box mapping, my implementation is a clumsy
workaround. If I have to work from a patch for a workaround, I think it would be
better to create a patch to implement the feature directly.
Of course since that is non-trivial, if I really need it before one is
available, I can certainly consider other patches. :)
Thanks again.


--
Batronyx ^"^
bat### [at] cadronhsacom //old & going away
bat### [at] alliancecablenet //new & active now.
http://www.batronyx.com

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