Hair Dynamics

Reference

Panel:Particle System ‣ Hair Dynamics

Hair particles can have dynamic properties using physics. To enable hair physics, click the checkbox beside Hair Dynamics.

Options

Structure

Mass
Value for the mass of the hair.
Stiffness

Controls the bending stiffness of the hair strands.

Random
Random stiffness of hair.
Damping
Damping of bending motion.

Volume

Some phenomena of real-world hair can be simulated more efficiently using a volumetric model instead of the basic geometric strand model. This means constructing a regular grid such as those used in fluid simulations and interpolating hair properties between the grid cells.

Air Drag
Controls how thick the hair is around the hair causing the hair to flow slower.
Internal Friction
Amount of friction between individual hairs.
Density Target

Maximum density if the hair.

Strength
The influence that the Density Target has on the simulation.
Voxel Grid Cell Size
Size of the voxel grid cells for interaction effects.

Pinning

Goal Strength
Spring stiffness of the vertex target position.

Quality

Steps
Quality of the simulation in steps per frame. (higher is better quality but slower).
Hair Grid
Show hair simulation grid.

Warning

If you use motion blur in your animation, you will need to bake one extra frame past the last frame which you will be rendering.