Philippe Debar <phd### [at] wanadoobe> wrote:
> Moreover, it is inconsistent with photons.

  That's because photon rays go the the opposite directions than
shadow testing rays. From this point of view, the results are very
consistent.
  Of course making the shadow test rays act in the same way as photon
rays would be more desirable.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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