🚀 go-pugleaf

I write here to describe the research done at the Computer Graphics Lab
of the Swiss Federal Intitute of Technology, in Lausanne.

Our main concern is animation and since 1990-91 we looked at the possibilies of
VR devices (DataGlove and EyePhone) for the purpose of animation. It took us
some time to get the devices but we got them before VPL closes so we have them.

Our main concern is to build an animation system where all 3D tasks
are performe d directly in the 3D world instead of through the
mediation of 2D panels. As these kind of problem is not particular to
3D animation, we worked on the design and development of a framework
to build 3D interactive applications. Since 2 years we worked on the
framework and we are getting very close to build our first animation
system on top of it.

The framework offers:

Multiple devices for input and visual as well as audio feedback
Posture and Gesture recognition for the DataGlove Data Reduction to
build time curves from sensor data.  A set of three dimensional
widgets to perform the interaction in 3D

A general hierarchical constraint maintenance mechanism. The
hierarchical constraints are used to declare multi-way relations
between active variables in the system. Active variables are variables
that are aware of their state change and that are capable to inform
their dependent of their change. The widgets are an encapsulation of
a modeling hierarchy and a behavior. The behavior is described as a
internal constraint network.

The system is developed in Eiffel and is composed of the following clusters.

Modeling, Distributed rendering, spline curves for animation, 3D widgets,
Gesture and Posture recognition, Real-time data-reduction.

For these of you who are interested in our work, some videos are available but
I am afraid that you will have to pay for the tape as we have budgets shortcuts.

For more information, e-mail me at balaguer@di.epfl.ch

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Francis Balaguer, DI/LIG Ecole Polytechnique Fed. de Lausanne CH-1015 Lausanne
E-mail : Work balaguer@di.epfl.ch, Fax: +4121 6935328
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