(x,y,t) { // Blobs.
   
   t *= 0.3;
   
   x *= 0.5;
   y *= 0.5;
   
   dx0 = x-sin(t*3);
   dy0 = y-cos(t*2);

   dx1 = x-sin(t*7);
   dy1 = y-cos(t*5);

   dx2 = x-sin(t*4);
   dy2 = y-cos(t*5);
   
   b0 = dx0*dx0+dy0*dy0;
   b1 = dx1*dx1+dy1*dy1;
   b2 = dx2*dx2+dy2*dy2;
   
   return 1.3-(b0*b1*b2);

}