Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2003-12-10
2009-12-01
Caschera, Antonio A (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S420000, C345S424000, C345S428000, C345S588000, C345S644000, C715S701000, C715S723000, C715S763000, C715S764000, C715S788000, C715S798000, C715S800000, C715S801000, C715S964000
Reexamination Certificate
active
07626589
ABSTRACT:
The invention provides techniques for wrapping a two-dimensional texture conformally onto a surface of a three dimensional virtual object within an arbitrarily-shaped, user-defined region. The techniques provide minimum distortion and allow interactive manipulation of the mapped texture. The techniques feature an energy minimization scheme in which distances between points on the surface of the three-dimensional virtual object serve as set lengths for springs connecting points of a planar mesh. The planar mesh is adjusted to minimize spring energy, and then used to define a patch upon which a two-dimensional texture is superimposed. Points on the surface of the virtual object are then mapped to corresponding points of the texture. The invention also features a haptic/graphical user interface element that allows a user to interactively and intuitively adjust texture mapped within the arbitrary, user-defined region.
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Caschera Antonio A
Goodwin & Procter LLP
SensAble Technologies, Inc.
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