// Last edited on 2003-06-24 15:23:23 by stolfi

#include "colors.inc"

#declare A11 = <0,0,0>;
#declare A12 = <2,-1,0>;
#declare A13 = <4,-1.3,0>;
#declare A14 = <6,-1.5,0>;
#declare A21 = <1,-2,1.3>;
#declare A22 = <2,-2.5,1.3>;
#declare A23 = <4,-2.5,1.3>;
#declare A24 = <6,-2.5,1.3>;
#declare A31 = <1,-4,0.7>;
#declare A32 = <2,-3,0.7>;
#declare A33 = <4,-3,0.7>;
#declare A34 = <6,-3,0.7>;
#declare A41 = <0,-6,0>;
#declare A42 = <2,-5,0>;
#declare A43 = <4,-4.8,0>;
#declare A44 = <6,-4.5,0>;

#declare B11 = A14;
#declare B12 = <8,-1.7,0>;
#declare B13 = <10,-2,0>;
#declare B14 = <12,-2,0>;
#declare B21 = A24;
#declare B22 = <8,-2,1.3>;
#declare B23 = <10,-2.5,1.3>;
#declare B24 = <12,-2.5,1.3>;
#declare B31 = A34;
#declare B32 = <8,-3,0.7>;
#declare B33 = <10,-3,0.7>;
#declare B34 = <12,-3,0.7>;
#declare B41 = A44;
#declare B42 = <8,-4.3,0>;
#declare B43 = <10,-4,0>;
#declare B44 = <12,-4,0>;

#declare C11 = B14;
#declare C12 = <14,-2,0>;
#declare C13 = <16,0,0>;
#declare C14 = <18,-1,0>;
#declare C21 = B24;
#declare C22 = <14,-2,1.3>;
#declare C23 = <16,0,1.3>;
#declare C24 = <18,-1,1.3>;
#declare C31 = B34;
#declare C32 = <14,-3,0.7>;
#declare C33 = <16,-3,0.7>;
#declare C34 = <18,-5,0.7>;
#declare C41 = B44;
#declare C42 = <14,-4,0>;
#declare C43 = <16,-6,0>;
#declare C44 = <18,-5,0>;

#declare bz_scale = 0.43;
#include "../../bz-things.inc"

#declare retalho1 =
  union{
    bicubic_patch {
      type 0
      flatness 0.0
      u_steps 4
      v_steps 4
      A11, A12, A13, A14,
      A21, A22, A23, A24,
      A31, A32, A33, A34,
      A41, A42, A43, A44
      texture { bz_tx_A }
    }
    object { bz_grid_A }
  }

#declare retalho2 =
  union{
    bicubic_patch {
      type 0
      flatness 0.01
      u_steps 4
      v_steps 4
      B11, B12, B13, B14,
      B21, B22, B23, B24,
      B31, B32, B33, B34,
      B41, B42, B43, B44
      texture { bz_tx_B }
    }
    object { bz_grid_B }
  }

#declare retalho3 =
  union{
    bicubic_patch {
      type 0
      flatness 0.01
      u_steps 4
      v_steps 4
      C11, C12, C13, C14,
      C21, C22, C23, C24,
      C31, C32, C33, C34,
      C41, C42, C43, C44
      texture { bz_tx_C }
    }
    object { bz_grid_C }
  }

#declare scene = 
  union{
    union{
      object{retalho1}
      object{retalho1 scale <1,1,-1>}
      object{retalho2}
      object{retalho2 scale <1,1,-1>}
      object{retalho3}
      object{retalho3 scale<1,1,-1>}
      translate < -9, +3, 0 >
    }
    // object{ bz_axes }
  }

object{ bz_checker_bg }
object{ scene translate bz_rite_pos }
object{ scene rotate -90*y translate bz_left_pos }