On scaling strategies for the full-body postural control of virtual mannequins
Interacting with Computers
Integrated Analytic and Linearized Inverse Kinematics for Precise Full Body Interactions
MIG '09 Proceedings of the 2nd International Workshop on Motion in Games
Interactive motion modeling and parameterization by direct demonstration
IVA'10 Proceedings of the 10th international conference on Intelligent virtual agents
Spatial awareness in full-body immersive interactions: where do we stand?
MIG'10 Proceedings of the Third international conference on Motion in games
Controlling an avatar's pointing gestures in desktop collaborative virtual environments
Proceedings of the 17th ACM international conference on Supporting group work
Task-driven posture optimization for virtual characters
EUROSCA'12 Proceedings of the 11th ACM SIGGRAPH / Eurographics conference on Computer Animation
Task-driven posture optimization for virtual characters
Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation
| Hi-index | 0.00 |
Interactive control of a virtual character through full-body movement has a wide range of applications. However, there is a need for systems that accurately reproduce a performer's motion while accounting for surrounding obstacles. The authors propose an approach based on a Prioritized Inverse Kinematics (IK) constraint solver. Several markers placed on the participant's body are tracked by the virtual character thanks to kinematic constraints. At the same time, the approach monitors the instantaneous displacements of a set of geometric primitives, called observers, attached to different parts of the virtual character. When an observer enters the influence area of an obstacle, any motion component heading toward the obstacle is damped by automatically created preventive constraints. The IK solver satisfies marker and preventive constraints simultaneously. Combined with an anatomically consistent, coupled spine model, the approach yields virtual character postures that remain close to the participant's, while avoiding collisions with the environment. Performance measurements show the maturity of the IK technology for real-time full-body interactions.