Earthworm
Film/TV

This advanced example project explores the usage of several new rigging features available in Houdini 21.

With Houdini 21, control groups consolidate several related controls together as a unit, AbstractControls are promoted into sliders, toggles, and menus, and custom python callbacks are executed in response to control events.

The earthworm rig makes use of several new features of the spline rigging nodes. The rig demonstrates how to create a fixed length joint chain rig. Pins, which connect a position on the joint chain to a position on the curve, allow for precise control over the position of the joint chain. Using a single pin, the joint chain can slide along the curve; or alternatively, multiple pins can stretch and squash the earthworm. The pins controls are configured as uvslider controls, allowing them to be dragged directly on the curve.

This example file serves as a starting point for creating complex, flexible, and dynamically configurable rigging setups.

(2 responses)

Asset Type
Character Rig | RIG
Published
Sept. 30, 2025
Terms of Use
Standard License
Created in
Houdini 21
Categories
Character
DOWNLOAD RIG [194.0 KB]

COMMENTS

  • AlessiaHoudini 1 week ago  | 

    This is why I love side fx and Houdini, I'm literally in the middle of my last year of studies and i m researching for how to make rigs in Houdini and this literally just got posted. Thank you man.

    • maitlandvt 5 days, 6 hours ago  | 

      I feel the same way.. i was just about to rig a witch's broom, check the content library and low-and behold...!

  • maitlandvt 5 days, 7 hours ago  | 

    My first thought was:

    This is EXTREMELY fun to play with in the viewport.


    My second thought was:

    I wonder how i can record myself playing with it in the viewport?

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