Simple & Low-Cost Hair Simulation & Deformation System
Simple Hair uses 3D structures made from tetrahedrons.
Character Artist Gerardo Castellanos has teased Simple Hair, an upcoming addition to the GRM Groom Toolkit, his collection of Houdini tools that streamlines the hair grooming process.
Simple Hair is based on tetrahedral geometry and looks particularly useful for video game projects and secondary characters viewed from a distance, aiming to eliminate common issues like long simulation times, collision problems, and loss of the original groom's style. It's currently unknown when Simple Hair will launch, but in the meantime, you can check out what the GRM Groom Toolkit currently has to offer:
- GRM_groomNoiser: a tool to create noise in the hair, in which you can control the shape, size, and variety of the noise;
- GRM_curveColor: a tool to visualize the guides/hair, creating random varieties in hue, tone, and/or value;
- GRM_resample: allows you to resample according to the size of the curves;
- GRM_guidesSpread: tool to rotate the guides and create a more random and natural effect;
- GRM_radiusOfInfluence: defines the guide's area of influence in the skin, and how it blends with the distance;
- GRM_roiInfluencer: an interactive tool to define the radius of influence or ROI (width or thickness) of every guide individually, it works with the next tool: GRM_hairGenClump;
- GRM_hairGenClump: generates the full hair based on the radius of influence (ROI) generated by the previous tool. The clumps may or may not be interpenetrated between them, with no limit on the width or thickness of each clump.
Draw-Hair is a free tool that lets you draw hair curves directly in the Blender viewport while following the shape of a guide mesh:
Another free Blender tool uses Geometry Nodes to procedurally transform hair grooms into feathers:
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