Apparatus and methods for wrapping texture onto the surface of a virtual object
First Claim
1. A non-transitory computer-readable medium, wherein the computer-readable medium stores instructions that, when executed by a processor, cause the processor to:
- identify an arbitrarily-shaped user-defined region of a surface of a three-dimensional virtual object, wherein a boundary of the user-defined region includes one or more curved sections;
for each location of a plurality of locations within the user-defined region;
map the respective location to a corresponding location in a texture, andassign to the respective location a graphical value associated with the corresponding location; and
provide, for graphical rendering in a display area of a user device, information comprising at least a portion of the three-dimensional virtual object, whereinthe portion of the three-dimensional virtual object comprises the user-defined region, andthe portion of the three-dimensional virtual object has the texture applied thereon.
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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.
211 Citations
16 Claims
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1. A non-transitory computer-readable medium, wherein the computer-readable medium stores instructions that, when executed by a processor, cause the processor to:
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identify an arbitrarily-shaped user-defined region of a surface of a three-dimensional virtual object, wherein a boundary of the user-defined region includes one or more curved sections; for each location of a plurality of locations within the user-defined region; map the respective location to a corresponding location in a texture, and assign to the respective location a graphical value associated with the corresponding location; and provide, for graphical rendering in a display area of a user device, information comprising at least a portion of the three-dimensional virtual object, wherein the portion of the three-dimensional virtual object comprises the user-defined region, and the portion of the three-dimensional virtual object has the texture applied thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a processor; and a memory comprising instructions, wherein the instructions, when executed by the processor, cause the processor to; identify an arbitrarily-shaped user-defined region of a surface of a three-dimensional virtual object, wherein a boundary of the user-defined region includes one or more curved sections; for each location of a plurality of locations within the user-defined region; map the respective location to a corresponding location in a texture, and assign to the respective location a graphical value associated with the corresponding location; and provide, for graphical rendering in a display area of a user device, information comprising at least a portion of the three-dimensional virtual object, wherein the portion of the three-dimensional virtual object comprises the user-defined region, and the portion of the three-dimensional virtual object has the texture applied thereon.
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Specification