also want to enable bounce during a walk cycle, for example, by allowing hair to slightly stretch (see Figure 5). To allow this artistic stretch of the hair without using stiff springs, we impose an upper limit on the stretch of the polyline similar to the biased strain limiting approach presented in [Selle et al. 2008]. During the spring damping calculation, we recurse from the root to the tip limiting the velocity of the hair particle if exceeds a threshold. After we update positions, we again recurse from the root of the hair to the tip shortening edges that exceed the specified stretch allowance. By using this limiter, artists are able to control the desired amount of stretch allowed by the system.