Figure 4.

The two parts of the stopping function. g1() is for stopping the growth at high gradient magnitude values and g2() is for stopping at low scalar intensities. The final stopping function is the product of g1() and g2().

The two parts of the stopping function. g1() is for stopping the growth at high gradient magnitude values and g2() is for stopping at low scalar intensities. The final stopping function is the product of g1() and g2().