Hair Dynamics¶

Reference

패널:: Particle System ‣ Hair Dynamics

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

Quality Steps: Quality of the simulation in steps per frame (higher is better quality but slower).
Pin Goal Strength: Spring stiffness of the vertex target position.

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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.

Collisions¶

Quality: A general setting for how fine and good a simulation you wish. Higher numbers take more time but ensure less tears and penetrations through the hair.
Distance: The distance another object must get to the hair for the simulation to repel the hair out of the way. Smaller values might cause errors but provide some speed-up while larger will give unrealistic results if too large and can be slow. It is best to find a good in between value.
Impulse Clamping: Prevents explosions in tight and complicated collision situations by restricting the amount of movement after a collision.
Collision Collection: Only objects that are a part of this Collection can collide with the hair. Note that these objects must also have Collision physics enabled.

Structure¶

Reference

패널:: Particle System ‣ Hair Dynamics ‣ Structure

Vertex 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¶

Reference

패널:: Particle System ‣ Hair Dynamics ‣ 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 air is around the hair causing the hair to flow slower.
Internal Friction: Amount of friction between individual hairs.
Voxel Grid Cell Size: Size of the voxel grid cells for interaction effects.
Density Target: Maximum density of the hair.
Density Strength: The influence that the Density Target has on the simulation.