VHD++ development framework: towards extendible, component based VR/AR simulation engine featuring advanced virtual character technologies

Ponder, Michal; Papagiannakis, George; Molet, Tom; Magnenat‐Thalmann, Nadia; Thalmann, Daniel

doi:10.1109/cgi.2003.1214453

Cited by 66 publications

(36 citation statements)

References 15 publications

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“…Many of the engines described up to now provide a degree of modularity, for example Piavca's Motions can be viewed as modular animation generators while HALCA's shader system provides modularity at the level of appearance and rigs. VHD++ (Ponder, Papagiannakis, Molet, Magnenat-Thalmann, & Thalmann, 2003) takes this tendency far further than any of the other engines discussed. In fact, it is less an engine than a modular framework for creating tailored engines.…”

Section: Vhd++mentioning

confidence: 88%

Comparing and Evaluating Real Time Character Engines for Virtual Environments

Gillies

Spanlang

2010

Presence: Teleoperators and Virtual Environments

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As animated characters increasingly become vital parts of virtual environments, then the engines that drive these characters increasingly become vital parts of virtual environment software. This paper gives an overview of the state of the art in character engines, and proposes a taxonomy of the features that are commonly found in them. This taxonomy can be used as a tool for comparison and evaluation of different engines. In order to demonstrate this we use it to compare three engines. The first is Cal3D, the most commonly used open source engine. We also introduce two engines created by the authors, Piavca and HALCA. The paper ends with a brief discussion of some other popular engines.

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Section: Vhd++mentioning

confidence: 88%

Comparing and Evaluating Real Time Character Engines for Virtual Environments

Gillies

Spanlang

2010

Presence: Teleoperators and Virtual Environments

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“…This test application is implemented using the VHD++ framework described in [Ponder et al 2003]. In this development tool, we can load characters with H-Anim structure, and create the described inverse kinematics controllers for the arms and the spine.…”

Section: Synthesis Of Reactive Motionsmentioning

confidence: 99%

Individualized reaction movements for virtual humans

Rojas¹,

Vexo²,

Thalmann³

2006

Proceedings of the 4th International Conference on Computer Graphics and Interactive Techniques in Australasia and Southeast As

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Virtual Humans creation aims to provide virtual characters with realistic behavior, which implies endowing them with autonomy in an inhabited virtual environment. Autonomous behavior consists in interacting with users or the environment and reacting to stimulus or events. Reactions are unconscious behaviors which are not often implemented in virtual humans. Frequently, virtual humans show repetitive and robotic movements which tend to decrease realism.To improve believability in virtual humans we need to provide individuality. Individualization is achieved by using human characteristics like personality, gender, emotions, etc. In this paper, we propose to use those individual descriptors to synthesize different kinds of reactions. We aim that individualized virtual humans react in a different way to the same stimuli. This approach is achieved by observing real people reacting. Thanks to those observations, we stereotyped reactive movements that can be described by individual characteristics. We use inverse kinematics techniques to synthesize the movements. This allows us to change reaction movements according to the characteristics of the stimuli and to the individuality of a character.

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“…4 enables integration of heterogeneous simulation technologies, such as real-time 3D rendering, skeleton and skin animation, behavioral control, etc. VHD++ virtual humans show large range of animation capabilities, as introduced in (Ponder et al 2003). The VHD++ framework constitutes an extendible, real-time, audio-visual simulation engine with special support of advanced real-time virtual characters simulation technologies.…”

Section: Vhd++ For Ar Applicationsmentioning

confidence: 99%

A Stable Real-time AR Framework for Training and Planning in Industrial Environments

Vacchetti¹,

Lepetit²,

Ponder³

et al. 2004

Virtual and Augmented Reality Applications in Manufacturing

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Augmented Reality systems can be effectively used to enhance manufacturing and industrial processes. However, not all the existing prototypes of AR systems can be used in industrial environment, due to heavy constraints such as low robustness or cumbersome equipment. Our Augmented Reality system relies on purely passive techniques to solve the real-time registration problem and it can run on a portable PC. We combine a powerful VR component-based simulation framework with Computer Vision techniques, turning it into an Augmented Reality system. The resulting system allows us to produce complex rendering and animation of avatars, and to blend them into the real world. The system tracks the 3D camera position by means of a natural features tracker, which, given a rough CAD model, can deal with complex 3D objects. The tracking method is robust and can handle large camera displacements and aspect changes. The target applications of our AR system are industrial maintenance, repair and training. The tracking robustness makes the AR system able to work in real environments such as industrial facilities and not only in the laboratory.

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VHD++ development framework: towards extendible, component based VR/AR simulation engine featuring advanced virtual character technologies

Cited by 66 publications

References 15 publications

Comparing and Evaluating Real Time Character Engines for Virtual Environments

Comparing and Evaluating Real Time Character Engines for Virtual Environments

Individualized reaction movements for virtual humans

A Stable Real-time AR Framework for Training and Planning in Industrial Environments

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