// Last edited on 2003-06-24 20:01:21 by stolfi

#include "colors.inc"
#include "stones.inc"

#declare A11 = < 0.0,-1.0, 0.8>;
#declare A12 = < 0.0,-0.7, 1.4>;
#declare A13 = < 0.0,-0.3, 1.0>;
#declare A14 = < 0.0, 0.1, 0.4>;
#declare A21 = < 0.2,-1.0, 0.3>;
#declare A22 = < 0.5,-0.7, 0.3>;
#declare A23 = < 0.5,-0.3, 0.3>;
#declare A24 = < 0.2, 0.1, 0.3>;
#declare A31 = < 0.2,-1.0,-0.3>;
#declare A32 = < 0.5,-0.7,-0.3>;
#declare A33 = < 0.5,-0.3,-0.3>;
#declare A34 = < 0.2, 0.1,-0.3>;
#declare A41 = < 0.0,-1.0,-0.8>;
#declare A42 = < 0.0,-0.7,-1.4>;
#declare A43 = < 0.0,-0.3,-1.0>;
#declare A44 = < 0.0, 0.1,-0.4>;

#declare B11 = A14;
#declare B12 = < 0.0, 0.2, 0.2>;
#declare B13 = < 0.0, 0.3, 0.2>;
#declare B14 = < 0.0, 0.4, 0.4>;
#declare B21 = A24;
#declare B22 = < 0.5, 0.2, 0.1>;
#declare B23 = < 0.5, 0.3, 0.1>;
#declare B24 = < 0.5, 0.4, 0.3>;
#declare B31 = A34;
#declare B32 = < 0.5, 0.2,-0.1>;
#declare B33 = < 0.5, 0.3,-0.1>;
#declare B34 = < 0.5, 0.4,-0.3>;
#declare B41 = A44;
#declare B42 = < 0.0, 0.2,-0.2>;
#declare B43 = < 0.0, 0.3,-0.2>;
#declare B44 = < 0.0, 0.4,-0.4>;

#declare C11 = B14;
#declare C12 = 2*B14 - B13; //< 0.0, 1.3, 1.0>;
#declare C13 = < 0.0, 0.7, 0.7>;
#declare C14 = < 0.0, 0.9, 1.0>;
#declare C21 = B24;
#declare C22 = 2*B24 - B23; //< 0.5, 1.3, 0.3>;
#declare C23 = < 0.5, 0.7, 0.3>;
#declare C24 = < 0.5, 0.9, 0.3>;
#declare C31 = B34;
#declare C32 = 2*B34 - B33; //< 0.5, 1.3,-0.3>;
#declare C33 = < 0.5, 0.7,-0.3>;
#declare C34 = < 0.5, 0.9,-0.3>;
#declare C41 = B44;
#declare C42 = 2*B44 - B43; //< 0.0, 1.3,-1.0>;
#declare C43 = < 0.0, 0.7,-0.7>;
#declare C44 = < 0.0, 0.9,-1.0>;

#declare bz_scale = 0.07;
#include "../../bz-things.inc"

#declare retalho1 = 
  union {
    bicubic_patch {
      type 1 v_steps 4 u_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 1  v_steps 5 u_steps 5 
      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 1  v_steps 5 u_steps 5 
      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 {retalho2 }
      object {retalho3 }
      object {retalho1 scale <-1,1,1>}
      object {retalho2 scale <-1,1,1>}
      object {retalho3 scale <-1,1,1>}
      translate < 0, 0, 0 >
    }
    // object{ bz_axes }
    rotate -90*x
    rotate 90*y
  }

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