Hair Tool is add-on for Blender that will help you generate hair-card, shell hair or curve hair in non destructive way, using geometry nodes and python.

There are multiple ways to generate hair-cards with Hair Tool:

Hair System – procedural hair generation based on geometry nodes – great for all kind of complicated hair styles (braids, curls, punk etc)

using Guide Mesh (grid surface) – best for modeling long hair strands – now rewritten to use new hair curves, in HT 3.0

using Track To Mesh – great for short to medium hairstyles

interactive grooming – old method that uses particle hair to generate hair-cards, replaced by Hair System

drawing and extending hair strands similar to Grease Pencil drawing – now rewritten to use new hair curves, in HT 3.0

using short hair modeling method – for short to medium length hair – animal fur, short human hairstyles

using shell hair modeling – great for very short hair (fur, carpet). Bit complicated to setup in game engine.

Update 4.0 for Blender 4.2+ (still as add-on) Last update 26.09.2024,

Added multiple profile types/objects support within one hair object – using ‘Mesh Profile’ and ‘Multi Curve Profile’ types,

Added ‘Profile Distribute’ deformer – for assigning profile objects to strands,

Show Child-Parent Hair Systems relations in UI (as tree like structure),

More stable Physics Sim (still not perfect yet..),

Improved ‘Curves from Grid Surface’, with new ‘Hook First Segment’ option,

Added symmetry option for Hair Tool modeling tools,

Bisect option in ‘Mirror’ deformer will work now when using custom symmetry object,

New ‘Interpolated Strands’ hair system type and operator,

‘Influence Range’ inputs are collapsible now (thx. MeeWa),

You can grab UV boxes with G key (thx. MeeWa) and Scale with S (set color was remapped from [S] to ‘[W]rite Color’ key),

Flat Profile has now ‘Influence Roundness’ input mask (thx. MeeWa),

Added ‘Influence Range’ input mask to ‘Align Tilt’ deformer,

Fix relative file path baking error,

Fix UVs becoming broken (no visible texture on cards), after importing baking scene,

Added new hair bake preset (thx Ellimoren),

Fix Random ID and Random Color bakes passes (previously changing contrast would randomize strands color),

improve ‘Align Tilt To border’ (tilt was not accumulated correctly),

Improve Strand Selection tools (add select by points count option),

Strand Group IDs will be inherited from parents strands,

Added ‘Assign Group ID’ deformer,

Skip generating ‘Surface Deform’ on Hair System Bake,

Improved ‘Align Tilt’ in some corner cases,

New ‘Radius’ input mask,

for Blender 4.2+ Last update 03.10.2024,

Fix: new duplicate of ‘Hair Tool’ library entry created on each Blender launch,

Fix: adding or moving hair systems, could cause ‘Missing Deformers’ errors,

Added ‘Fix missing deformers’ operator for fixing already broken setups (from bug above),

THIS POST WAS LAST UPDATED ON 24 OCT 2024 – UPDATED VERSION HAS BEEN ADDED.

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