Blender Add-on | HairClump | VFX Grace

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Introduction:
HairClump is a Blender add-on that parametrically controls the randomness of hair shapes. Multiple controls based on clumps—length control, kink control, and other various controls—makes it easier for users to style a complex hair shape through the simple guides. Besides, this add-on offers a function to export particles and instances in alembic format with one-click, which greatly improves work efficiency. Try it right now.
Installation Environment:

• Support Blender 3.3 above in Windows;

• Blender 3.3 above in Linux.

• Blender 3.3 above in Mac.

Function Instruction:

• Virtual Parents allows users to customize the number of clumps and vary random seeds.
• Adding the length random of clumps.
• Adding the curve random of clumps.
• Adding the shape random of clumps.
• Adding the noise random of clumps.
• Kink Random contains four modes: curl random, radial random, wave random, and braid random.
• In these four modes, adding kink random, amplitude random, clump random, flatness random, frequency random, and shape random.
• Adding a function to export hair clumps in alembic format. Use Instruction

Use Instruction

1. Virtual Parents
2. Length Random
3. Reset
4. Clump Curve; Shape Random
5. Clump Noise 
6. Mode: Curl Kink, Radial Kink, Wave Kink, and Braid Kink. Parameter: Kink, Amplitude, Clump, Flatness, Frequency, and Shape.
7. Export Alembic HairClump(.abc)
8. Export particles and instances.

Installation method
General installation: Preferences→ Add-ons→ Install. Select this add-in to install.

Notes
If the instance is used in a particle system, please don’t toggle on Hair Clump Random in this particle system, or else Blender will easily crash when exporting ABC. It’s better not to add a particle system using instance to an object that has a particle system using instance, or Blender is easily stuck. When exporting an ABC file, please make the displayed amount consistent with the render amount if Virtual Parents is used, or the exported ABC will be different from the display shape. Please use Blender 2.82a or Blender 2.83 if Virtual Varents is used. Only when Interpolated is used will Virtual Parents work. Please set tile size to the power of 2, like 2, 4, 8, 16. Please select the objects to be exported before exporting ABC.Update log:
v1.3：Updated Date: July 12, 2020
Update:
Fix the issue in v1.2 that particle systems cannot be exported if Hair Clump Random isn’t toggled on when exporting ABC.
Adding a function to export instances.
Adding the function that Virtual Parents customizes the number of clumps.
v1.2：Updated Date: June 26, 2020
Update:
Adding a function to export Alembic HairClump(.abc).
v1.1：Updated Date: June 15, 2020
Update:
Compatible with Blender 2.82a
v1.0：Updated Date: May 3, 2020
Update:
Adding the random control for children clumps and Kink

Changelog

Version: Hair Clump 1.9.13

Updated on Mar 28, 2026

New Features:

Support Blender 5.0 & 5.1