thank you very much! -- B Gimeno estoeslarealidad http://usuarios.lycos.es/game2413 light_source{0,1}#local C=cylinder{x*-2,x*2,0.9}difference{box{-1,1} object{C pigment{red 1}}object{C rotate y*90pigment{green 1}}object{ C rotate z*90 pigment{blue 1}}pigment{rgb 3}rotate 45 translate z*4}
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