function interpolateEmotions(strength,fraction,e1,e2,e3,e4) {
                      i = 0;
                      for(i=0;i<16;i++) {
                          a = e1[i] + (e2[i]-e1[i])*fraction;
                          b = e3[i] + (e4[i]-e3[i])*fraction;
                          temp[i] = a + (b-a)*strength;
                      }
                      setFrame = temp;
                  }