#ifdef GL_ES
precision highp float;
#endif // GL_ES

uniform vec3 u_lightDir;
uniform mat4 u_mtx;
varying vec2 v_texcoord0;
varying vec4 v_color0;
void main ()
{
  vec4 tmpvar_1;
  tmpvar_1.zw = vec2(0.0, 1.0);
  tmpvar_1.x = v_texcoord0.x;
  tmpvar_1.y = v_texcoord0.y;
  vec4 tmpvar_2;
  tmpvar_2 = (u_mtx * tmpvar_1);
  vec3 tmpvar_3;
  tmpvar_3 = (tmpvar_2.xyz / tmpvar_2.w);
  vec4 tmpvar_4;
  tmpvar_4.zw = vec2(1.0, 1.0);
  tmpvar_4.x = v_texcoord0.x;
  tmpvar_4.y = v_texcoord0.y;
  vec4 tmpvar_5;
  tmpvar_5 = (u_mtx * tmpvar_4);
  vec3 tmpvar_6;
  tmpvar_6 = (tmpvar_5.xyz / tmpvar_5.w);
  float tmpvar_7;
  vec3 arg0_8;
  arg0_8 = (tmpvar_6 - tmpvar_3);
  tmpvar_7 = sqrt(dot (arg0_8, arg0_8));
  vec3 tmpvar_9;
  tmpvar_9 = normalize((tmpvar_6 - tmpvar_3));
  vec3 _ray_10;
  _ray_10 = tmpvar_3;
  vec3 _dir_11;
  _dir_11 = tmpvar_9;
  int ii_12;
  float tt_13;
  tt_13 = 0.0;
  ii_12 = 0;
  for (int ii_12 = 0; ii_12 < 64; ) {
    vec3 _pos_14;
    _pos_14 = (_ray_10 + (_dir_11 * tt_13));
    vec3 tmpvar_15;
    tmpvar_15 = max ((abs(_pos_14) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_16;
    _pos_16 = (_pos_14 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_17;
    _pos_17 = (_pos_14 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_18;
    _pos_18 = (_pos_14 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_19;
    _pos_19 = (_pos_14 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_20;
    _pos_20 = (_pos_14 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_21;
    _pos_21 = (_pos_14 + vec3(0.0, 0.0, -4.0));
    float tmpvar_22;
    tmpvar_22 = min (min (min (min (min (min ((sqrt(dot (tmpvar_15, tmpvar_15)) - 0.5), (sqrt(dot (_pos_16, _pos_16)) - 1.0)), (sqrt(dot (_pos_17, _pos_17)) - 1.0)), (sqrt(dot (_pos_18, _pos_18)) - 1.0)), (sqrt(dot (_pos_19, _pos_19)) - 1.0)), (sqrt(dot (_pos_20, _pos_20)) - 1.0)), (sqrt(dot (_pos_21, _pos_21)) - 1.0));
    if ((tmpvar_22 > 0.001)) {
      tt_13 = (tt_13 + tmpvar_22);
    };
    ii_12 = (ii_12 + 1);
  };
  float tmpvar_23;
  if ((tt_13 < tmpvar_7)) {
    tmpvar_23 = tt_13;
  } else {
    tmpvar_23 = 0.0;
  };
  if ((tmpvar_23 > 0.5)) {
    vec3 tmpvar_24;
    tmpvar_24 = (tmpvar_3 + (tmpvar_9 * tmpvar_23));
    vec3 _pos_25;
    _pos_25 = (tmpvar_24 + vec3(0.002, 0.0, 0.0));
    vec3 tmpvar_26;
    tmpvar_26 = max ((abs(_pos_25) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_27;
    _pos_27 = (_pos_25 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_28;
    _pos_28 = (_pos_25 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_29;
    _pos_29 = (_pos_25 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_30;
    _pos_30 = (_pos_25 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_31;
    _pos_31 = (_pos_25 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_32;
    _pos_32 = (_pos_25 + vec3(0.0, 0.0, -4.0));
    vec3 _pos_33;
    _pos_33 = (tmpvar_24 - vec3(0.002, 0.0, 0.0));
    vec3 tmpvar_34;
    tmpvar_34 = max ((abs(_pos_33) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_35;
    _pos_35 = (_pos_33 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_36;
    _pos_36 = (_pos_33 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_37;
    _pos_37 = (_pos_33 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_38;
    _pos_38 = (_pos_33 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_39;
    _pos_39 = (_pos_33 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_40;
    _pos_40 = (_pos_33 + vec3(0.0, 0.0, -4.0));
    vec3 _pos_41;
    _pos_41 = (tmpvar_24 + vec3(0.0, 0.002, 0.0));
    vec3 tmpvar_42;
    tmpvar_42 = max ((abs(_pos_41) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_43;
    _pos_43 = (_pos_41 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_44;
    _pos_44 = (_pos_41 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_45;
    _pos_45 = (_pos_41 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_46;
    _pos_46 = (_pos_41 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_47;
    _pos_47 = (_pos_41 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_48;
    _pos_48 = (_pos_41 + vec3(0.0, 0.0, -4.0));
    vec3 _pos_49;
    _pos_49 = (tmpvar_24 - vec3(0.0, 0.002, 0.0));
    vec3 tmpvar_50;
    tmpvar_50 = max ((abs(_pos_49) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_51;
    _pos_51 = (_pos_49 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_52;
    _pos_52 = (_pos_49 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_53;
    _pos_53 = (_pos_49 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_54;
    _pos_54 = (_pos_49 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_55;
    _pos_55 = (_pos_49 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_56;
    _pos_56 = (_pos_49 + vec3(0.0, 0.0, -4.0));
    vec3 _pos_57;
    _pos_57 = (tmpvar_24 + vec3(0.0, 0.0, 0.002));
    vec3 tmpvar_58;
    tmpvar_58 = max ((abs(_pos_57) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_59;
    _pos_59 = (_pos_57 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_60;
    _pos_60 = (_pos_57 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_61;
    _pos_61 = (_pos_57 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_62;
    _pos_62 = (_pos_57 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_63;
    _pos_63 = (_pos_57 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_64;
    _pos_64 = (_pos_57 + vec3(0.0, 0.0, -4.0));
    vec3 _pos_65;
    _pos_65 = (tmpvar_24 - vec3(0.0, 0.0, 0.002));
    vec3 tmpvar_66;
    tmpvar_66 = max ((abs(_pos_65) - vec3(2.5, 2.5, 2.5)), 0.0);
    vec3 _pos_67;
    _pos_67 = (_pos_65 + vec3(4.0, 0.0, 0.0));
    vec3 _pos_68;
    _pos_68 = (_pos_65 + vec3(-4.0, 0.0, 0.0));
    vec3 _pos_69;
    _pos_69 = (_pos_65 + vec3(0.0, 4.0, 0.0));
    vec3 _pos_70;
    _pos_70 = (_pos_65 + vec3(0.0, -4.0, 0.0));
    vec3 _pos_71;
    _pos_71 = (_pos_65 + vec3(0.0, 0.0, 4.0));
    vec3 _pos_72;
    _pos_72 = (_pos_65 + vec3(0.0, 0.0, -4.0));
    vec3 tmpvar_73;
    tmpvar_73.x = (min (min (min (min (min (min ((sqrt(dot (tmpvar_26, tmpvar_26)) - 0.5), (sqrt(dot (_pos_27, _pos_27)) - 1.0)), (sqrt(dot (_pos_28, _pos_28)) - 1.0)), (sqrt(dot (_pos_29, _pos_29)) - 1.0)), (sqrt(dot (_pos_30, _pos_30)) - 1.0)), (sqrt(dot (_pos_31, _pos_31)) - 1.0)), (sqrt(dot (_pos_32, _pos_32)) - 1.0)) - min (min (min (min (min (min ((sqrt(dot (tmpvar_34, tmpvar_34)) - 0.5), (sqrt(dot (_pos_35, _pos_35)) - 1.0)), (sqrt(dot (_pos_36, _pos_36)) - 1.0)), (sqrt(dot (_pos_37, _pos_37)) - 1.0)), (sqrt(dot (_pos_38, _pos_38)) - 1.0)), (sqrt(dot (_pos_39, _pos_39)) - 1.0)), (sqrt(dot (_pos_40, _pos_40)) - 1.0)));
    tmpvar_73.y = (min (min (min (min (min (min ((sqrt(dot (tmpvar_42, tmpvar_42)) - 0.5), (sqrt(dot (_pos_43, _pos_43)) - 1.0)), (sqrt(dot (_pos_44, _pos_44)) - 1.0)), (sqrt(dot (_pos_45, _pos_45)) - 1.0)), (sqrt(dot (_pos_46, _pos_46)) - 1.0)), (sqrt(dot (_pos_47, _pos_47)) - 1.0)), (sqrt(dot (_pos_48, _pos_48)) - 1.0)) - min (min (min (min (min (min ((sqrt(dot (tmpvar_50, tmpvar_50)) - 0.5), (sqrt(dot (_pos_51, _pos_51)) - 1.0)), (sqrt(dot (_pos_52, _pos_52)) - 1.0)), (sqrt(dot (_pos_53, _pos_53)) - 1.0)), (sqrt(dot (_pos_54, _pos_54)) - 1.0)), (sqrt(dot (_pos_55, _pos_55)) - 1.0)), (sqrt(dot (_pos_56, _pos_56)) - 1.0)));
    tmpvar_73.z = (min (min (min (min (min (min ((sqrt(dot (tmpvar_58, tmpvar_58)) - 0.5), (sqrt(dot (_pos_59, _pos_59)) - 1.0)), (sqrt(dot (_pos_60, _pos_60)) - 1.0)), (sqrt(dot (_pos_61, _pos_61)) - 1.0)), (sqrt(dot (_pos_62, _pos_62)) - 1.0)), (sqrt(dot (_pos_63, _pos_63)) - 1.0)), (sqrt(dot (_pos_64, _pos_64)) - 1.0)) - min (min (min (min (min (min ((sqrt(dot (tmpvar_66, tmpvar_66)) - 0.5), (sqrt(dot (_pos_67, _pos_67)) - 1.0)), (sqrt(dot (_pos_68, _pos_68)) - 1.0)), (sqrt(dot (_pos_69, _pos_69)) - 1.0)), (sqrt(dot (_pos_70, _pos_70)) - 1.0)), (sqrt(dot (_pos_71, _pos_71)) - 1.0)), (sqrt(dot (_pos_72, _pos_72)) - 1.0)));
    vec3 tmpvar_74;
    tmpvar_74 = normalize(tmpvar_73);
    float tmpvar_75;
    tmpvar_75 = dot (tmpvar_74, u_lightDir);
    vec2 tmpvar_76;
    tmpvar_76.x = tmpvar_75;
    tmpvar_76.y = dot ((u_lightDir - ((2.0 * tmpvar_75) * tmpvar_74)), tmpvar_9);
    float tmpvar_77;
    tmpvar_77 = max (0.0, tmpvar_75);
    vec4 tmpvar_78;
    tmpvar_78.xw = vec2(1.0, 1.0);
    tmpvar_78.y = tmpvar_77;
    tmpvar_78.z = (float((tmpvar_75 >= 0.0)) * max (0.0, tmpvar_76.y));
    float tmpvar_79;
    tmpvar_79 = ((0.9 * tmpvar_77) + (pow (tmpvar_78.z, 128.0) * max ((0.2 + (0.8 * pow ((1.0 - tmpvar_75), 5.0))), 0.0)));
    vec3 _pos_80;
    _pos_80 = tmpvar_24;
    vec3 _normal_81;
    _normal_81 = tmpvar_74;
    int ii_82;
    float occ_83;
    occ_83 = 0.0;
    ii_82 = 1;
    for (int ii_82 = 1; ii_82 < 4; ) {
      float tmpvar_84;
      tmpvar_84 = float(ii_82);
      vec3 _pos_85;
      _pos_85 = (_pos_80 + ((_normal_81 * tmpvar_84) * 0.2));
      vec3 tmpvar_86;
      tmpvar_86 = max ((abs(_pos_85) - vec3(2.5, 2.5, 2.5)), 0.0);
      vec3 _pos_87;
      _pos_87 = (_pos_85 + vec3(4.0, 0.0, 0.0));
      vec3 _pos_88;
      _pos_88 = (_pos_85 + vec3(-4.0, 0.0, 0.0));
      vec3 _pos_89;
      _pos_89 = (_pos_85 + vec3(0.0, 4.0, 0.0));
      vec3 _pos_90;
      _pos_90 = (_pos_85 + vec3(0.0, -4.0, 0.0));
      vec3 _pos_91;
      _pos_91 = (_pos_85 + vec3(0.0, 0.0, 4.0));
      vec3 _pos_92;
      _pos_92 = (_pos_85 + vec3(0.0, 0.0, -4.0));
      occ_83 = (occ_83 + (((tmpvar_84 * 0.2) - min (min (min (min (min (min ((sqrt(dot (tmpvar_86, tmpvar_86)) - 0.5), (sqrt(dot (_pos_87, _pos_87)) - 1.0)), (sqrt(dot (_pos_88, _pos_88)) - 1.0)), (sqrt(dot (_pos_89, _pos_89)) - 1.0)), (sqrt(dot (_pos_90, _pos_90)) - 1.0)), (sqrt(dot (_pos_91, _pos_91)) - 1.0)), (sqrt(dot (_pos_92, _pos_92)) - 1.0))) / pow (2.0, tmpvar_84)));
      ii_82 = (ii_82 + 1);
    };
    float tmpvar_93;
    tmpvar_93 = pow ((tmpvar_79 * (1.0 - occ_83)), 0.454545);
    vec4 tmpvar_94;
    tmpvar_94.w = 1.0;
    tmpvar_94.x = tmpvar_93;
    tmpvar_94.y = tmpvar_93;
    tmpvar_94.z = tmpvar_93;
    gl_FragColor = tmpvar_94;
    gl_FragDepth = (tmpvar_23 / tmpvar_7);
  } else {
    gl_FragColor = v_color0;
    gl_FragDepth = 1.0;
  };
}