blur method

void blur([ double intensity = 1 ])

Implementation

void blur([double intensity = 1]){
  final field = this.field;
  final fieldCopy = field.sublist(0);
  final size = this.size;
  final size2 = this.size2;

  for(int x = 0; x < size; x ++){
    for(int y = 0; y < size; y ++){
      for(int z = 0; z < size; z ++){
        final index = (size2 * z + size * y + x).toInt();
        double val = fieldCopy[index];
        int count = 1;

        for(int x2 = - 1; x2 <= 1; x2 += 2 ) {
          final x3 = x2 + x;
          if ( x3 < 0 || x3 >= size ) continue;

          for(int y2 = - 1; y2 <= 1; y2 += 2 ) {
            final y3 = y2 + y;
            if( y3 < 0 || y3 >= size ) continue;

            for(int z2 = - 1; z2 <= 1; z2 += 2){
              final z3 = z2 + z;
              if( z3 < 0 || z3 >= size ) continue;

              final index2 = (size2 * z3 + size * y3 + x3).toInt();
              final val2 = fieldCopy[ index2 ];

              count ++;
              val += intensity * ( val2 - val ) / count;
            }
          }
        }
        field[index] = val;
      }
    }
  }
}