← ArchivePaper2025
Rubber Hose Revival: The DreamWorks Curvy-Limb Rig
Evan Boucher, Luis San Juan Pallares, Carlos Puertolas, Yukinori Inagaki
DreamWorks rig system for stylized rubber-hose limb animation, enabling exaggerated cartoon deformation on production characters.
Abstract
The DreamWorks Curvy-Limb rig allows animators to pose complex curves without sacrificing intuitive usability. The system adds additional flexibility to character limbs (arms and legs) and digits (fingers and toes) while retaining the standard arm, leg, and digit controls to which animators are already familiar. Animators can activate the extra controls as needed on the fly without having to blend into any special "states." The robustness of the Curvy-Limb has proven to be instrumental to the character performances of multiple DreamWorks Animation productions, including Ruby Gillman, Teenage Kraken, Trolls Band Together, and The Wild Robot.
How to read this
- Category
- Production rig system: stylized curvy-limb deformation
- Contributions
- The DreamWorks Curvy-Limb rig, letting animators pose limbs and digits as complex curves for exaggerated rubber-hose deformation
- Extra flexibility controls layered on top of standard arm, leg and digit controls, with no special state to blend into
- On-the-fly activation of the curvy controls, proven across multiple DreamWorks productions
- Context
- Builds on stretchable/twistable skeletal deformation ideas such as Jacobson et al. 2011, adapting them to an animator-facing production control scheme.Builds on: Stretchable and Twistable Bones for Skeletal Shape Deformation
- Correctness
- This is studio practice rather than a peer-reviewed method; robustness is argued from shipped films (Ruby Gillman, Trolls Band Together, The Wild Robot), so claims are production-proven rather than benchmarked.
- Clarity
- Accessible and workflow-focused; a single read conveys the control model and animator ergonomics.
- How to read it
- Read for the control design and the seamless activation idea; one pass is enough unless you are building a similar animator-facing limb-curve control.
Built upon by
Nothing yet.
Related work
- Shaping the Elements: Curvenet Animation Controls in Pixar's Elemental 2023 / SIGGRAPH
- How the Rig Design Impacts the Animation Process 2021 / DigiPro
- Premo: Powerful Character Rigging, Fast Animation 2023 / SIGGRAPH
- LibEE: A Multithreaded Dependency Graph for Character Animation 2012 / DigiPro
Keywords
This page summarises the entry and links to its original source. The archive never hosts or redistributes the publication itself.Show it in the full archive list →