Numerical recipes in C (2nd ed.): the art of scientific computing
Numerical recipes in C (2nd ed.): the art of scientific computing
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Behavior-based primitives for articulated control
Proceedings of the fifth international conference on simulation of adaptive behavior on From animals to animats 5
Interactive control for physically-based animation
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
The EMOTE model for effort and shape
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Composable controllers for physics-based character animation
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Making Complex Articulated Agents Dance
Autonomous Agents and Multi-Agent Systems
Real Time Responsive Animation with Personality
IEEE Transactions on Visualization and Computer Graphics
User-Controlled Physics-Based Animation for Articulated Figures
CA '96 Proceedings of the Computer Animation
Simulation of leaping, tumbling, landing, and balancing humans
Simulation of leaping, tumbling, landing, and balancing humans
Finite volume methods for the simulation of skeletal muscle
Proceedings of the 2003 ACM SIGGRAPH/Eurographics symposium on Computer animation
Aesthetic edits for character animation
Proceedings of the 2003 ACM SIGGRAPH/Eurographics symposium on Computer animation
Hybrid Control for Interactive Character Animation
PG '03 Proceedings of the 11th Pacific Conference on Computer Graphics and Applications
Breathe easy: model and control of simulated respiration for animation
SCA '04 Proceedings of the 2004 ACM SIGGRAPH/Eurographics symposium on Computer animation
Learning physics-based motion style with nonlinear inverse optimization
ACM SIGGRAPH 2005 Papers
AER: aesthetic exploration and refinement for expressive character animation
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
Dynamic Animation and Control Environment
GI '05 Proceedings of Graphics Interface 2005
Breathe easy: model and control of human respiration for computer animation
Graphical Models - Special issue on SCA 2004
Interaction capture and synthesis
ACM SIGGRAPH 2006 Papers
Heads up!: biomechanical modeling and neuromuscular control of the neck
ACM SIGGRAPH 2006 Papers
Impulse-based PD control for joints and muscles
ACM SIGGRAPH 2006 Sketches
On the beat!: timing and tension for dynamic characters
SCA '07 Proceedings of the 2007 ACM SIGGRAPH/Eurographics symposium on Computer animation
Proceedings of the 2007 ACM SIGGRAPH symposium on Video games
Impulse-Based Control of Joints and Muscles
IEEE Transactions on Visualization and Computer Graphics
Gesture modeling and animation based on a probabilistic re-creation of speaker style
ACM Transactions on Graphics (TOG)
Musculotendon simulation for hand animation
ACM SIGGRAPH 2008 papers
IVA '07 Proceedings of the 7th international conference on Intelligent Virtual Agents
Optimal feedback control for character animation using an abstract model
ACM SIGGRAPH 2010 papers
Implementing expressive gesture synthesis for embodied conversational agents
GW'05 Proceedings of the 6th international conference on Gesture in Human-Computer Interaction and Simulation
Modeling relaxed hand shape for character animation
AMDO'06 Proceedings of the 4th international conference on Articulated Motion and Deformable Objects
Synthesizing mood-affected signed messages: Modifications to the parametric synthesis
International Journal of Human-Computer Studies
Inverse kinodynamics: editing and constraining kinematic approximations of dynamic motion
Proceedings of Graphics Interface 2012
Interactive Character Animation Using Simulated Physics: A State-of-the-Art Review
Computer Graphics Forum
Expressive body animation pipeline for virtual agent
IVA'12 Proceedings of the 12th international conference on Intelligent Virtual Agents
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The use of tension and relaxation in the muscles of real creatures gives rise to nuanced motion that conveys emotion or intent. Artists have long exploited knowledge of this in traditional animation and other areas, but it has been both overlooked and difficult to achieve in physically based animation. The robotically stiff motion that has come to typify physically based approaches belies the fact that dynamics has much to offer in facilitating far more subtle motion in which animators could freely "shape" a motion. We demonstrate that tension and relaxation can be introduced into joint-level, posture based animation. While we show that these modalities can be efficiently incorporated into traditional proportional-derivative control models, we instead formulate a more flexible and better-behaved model based on antagonistic control. This approach is more biomechanically sound, but more importantly it permits the separation of stiffness control from position control, achieving better posture interpolation, better error control, and passive and active dynamics. We introduce effective mechanisms to control the shape of a motion and describe an animation system that efficiently integrates relaxation and tension control in a physically based simulation environment.