The shadows go the opposite direction to the visible light source??

Nice pic btw :)

Dave


"Warp" <war### [at] tagpovrayorg> wrote in message
news:3b45f0cf@news.povray.org...
>   The impossible triangle with cubes was first invented by the
> Swedish artist Oscar Reutersvard back in 1934.
>
>   This image has two tricks. The first one is obvious (the triangle). But
> there's another trick which may not be obvious. Can you guess what it is?
>
>


----------------------------------------------------------------------------
----


>
>
> --
> #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 -

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