The physics module allows you to simulate basic physics on the fur of your characters. It is entirely run on the GPU so its performance impact is extremely low, and its memory footprint can be adjusted by changing the quality of the Physics Simulation. Low and Very Low qualities will be enough for most models and in its lowest setting the Physics module uses less than 10Kb of memory for each material using the physics simulation. To use it, simply enable the module in the General Settings tab and then enable the simulation for the corresponding fur materials in the Physics Module tab.
The Gravity strength and the Physics Sensitivity settings are shared across all materials in the instance and while at release fur length has the most influence over the physics effect, an additional Physics Strength Multiplier variable is provided to further adjust how strong the final effect is.