Animal Fur

Important information

How the Hair/Fur asset types work:
Everything about the Hair/Fur asset types

*To get the best result apply modifiers that change the topology of the object like Bevel or Subdivision Surface

*To correctly keep the hairs attached to the object during animations and other modifiers like simple deform the target object must be UV Unwrapped and have no overlapping faces in the UV Map.

*You can use generated curves or you can select the curve object and enter Sculpt mode to add your own curves and adjust length, comb, etc. If you use your own curves, I recommend you to set the mask in “HAIR DIRECTION” to 0, so you don’t override the combing

*Masks and some other parameters allow you to click the “Input Attribute Toggle” button and use an attribute like a vertex group to drive things like density and other parameters.

Parameters

Target Object: Object Where the curves are parented
UVMap Name: Target Object’s UV Map Name
Hair Material: The material for the hair
Viewport Culling: Use “Viewport Density” while in viewport to speed up processing time
Max Curves Failsafe: If there are more than this amount of curves, they show in viewport.
Seed: Overall Seed

▼ HAIR DENSITY
Mask: Overall Effect Multiplier (can be converted to attribute)
Viewport Density: Hair density in viewport (while Viewport Culling is active)
Render Density: Hair Density in Renders

▼ INTERPOLATION
Interpolation Guides: Amount of guides to be used for interpolation per curve
Interpolation Distance: Distance around each guide to spawn interpolated curves

▼ BASE HAIR
Base Hair Length: Base layer of Hair length
Resolution: Amount of control points of the generated hair curves in renders

▼ HAIR LAYER 2
Probability: Probability for a hair to become a layer 2 hair
Multiply Length: Hair length compared to base hair length

▼ HAIR LAYER 3
Probability: Probability for a hair to become a layer 3 hair
Multiply Length: Hair length compared to base hair length

▼ HAIR PROFILE
Replace Radius: Replace original curve radius
Radius: Curve Radius
Factor Min: Minimum possible radius
Factor Max: Maximum possible radius
Shape: Point of the curve where the maximum radius transitions into the minimum radius

▼ LENGTH VARIATION
Length Variation: Randomly increase and decrease hair length by this factor

▼ FRIZZ
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Shape: Frizz Scale
Strength: Frizz Strength

▼ ROLL HAIR
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Variation Level: Level of smoothing on the roll path to include shape variation
Roll Length: Length of each curve to be rolled
Roll Radius: Radius of the rolls
Roll Depth: Depth offset of the roll
Roll Taper: Taper of the roll
Retain Overall Shape: Offset the roll along the original curve to retain shape

▼ HAIR NOISE
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Distance: Overall distance factor for the deformation
Shape: Shape of amount along each curve (0=constant, 0.5=linear)
Noise Scale: Scale of the noise texture by root position

▼ ROOT ROTATION
Mask: Overall Effect Multiplier (can be converted to attribute)
Random Maximum Angle: Maximum possible angle for the random rotation

▼ HAIR CURL
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Guide Distance: Minimum distance between two guides for new guide map
Curl Start: Percentage along each curve to blend deformation from the root
Radius: Overall radius of the curls
Factor Start: Factor for the radius at the curl start
Factor End: Factor for the radius at the curl end
Frequency: Frequency factor of the curls
Random Offset: Amount of random offset per curve

▼ HAIR CLUMP
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Guide Distance: Clump Size
Shape: Shape of the influence along curves (0=constant, 0.5=linear)
Tip Spread: Distance of random spread at the curve tips
Clump Offset: Offset of each clump in a random direction
Distance Falloff: Falloff distance for the clumping effect (0 means no falloff)
Distance Threshold: Distance Threshold for the falloff around the guide

▼ HAIR DIRECTION
Global/Local: Direction Global or Local based
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Direction: Direction of the hair
Length Factor: Increase influence (longer hair gets affected first)
Bend From: The point on curves where they start bending towards direction
Bend To: The point on curves where where the maximum bending angle is reached
Bend Min: Bend minimum effect
Bend Max: Bend maximum effect

▼ SHRINKWRAP
Mask: Overall Effect Multiplier (can be converted to attribute)
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Above Surface: Blend shrinkwrap for points above the surface

▼ FLATTEN
Mask: Overall Effect Multiplier (can be converted to attribute)
Min: Minimum effect a hair can get
Max: Maximum effect a hair can get
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Probability: Affected hairs probability (0 = no hairs affected, 1 = every hair is affected)
Restore Length: Restores original length after the effect

▼ WIND
Mask: Overall Effect Multiplier (can be converted to attribute)
Base Factor: How much the effect affects Base Hair
Layer 2 Factor: How much the effect affects Layer 2 Hair
Layer 3 Factor: How much the effect affects Layer 3 Hair
Wind Direction: Wind Direction
Animation Speed: Wind animation speed
Loop Every: Every how many frames the animation loops
Scale: Wind texture scale (increase to have more variation, decrease to have a more uniform wind across the object)

Fur render with looping wind