SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Energy constraints on parameterized models
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Dynamic NURBS with geometric constraints for interactive sculpting
ACM Transactions on Graphics (TOG) - Special issue on interactive sculpting
An interactive tool for placing curved surfaces without interpenetration
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
A modeling system based on dynamic constraints
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
Constraints methods for flexible models
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Faking Dynamics of Ropes and Springs
IEEE Computer Graphics and Applications
Feature Based Retargeting of Parameterized Geometry
GMP '04 Proceedings of the Geometric Modeling and Processing 2004
Real-time knot-tying simulation
The Visual Computer: International Journal of Computer Graphics
Fast exact and approximate geodesics on meshes
ACM SIGGRAPH 2005 Papers
Musculotendon simulation for hand animation
ACM SIGGRAPH 2008 papers
Large-scale dynamic simulation of highly constrained strands
ACM SIGGRAPH 2011 papers
Proceedings of the 24th annual ACM symposium on User interface software and technology
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The modeling of curves that contact complex 3D geometry presents a challenge to animators and designers. Parametric curve models specified with control points often require an intractable amount of position constraints to achieve a desired shape, in particular if the curve is animated and has changing contact relationships. Physical simulations model contact, but they are difficult to control with precision, especially for complex scenes. This article presents a geometric curve primitive, known as a cord, which allows for interactive modeling of curves that contact complex geometry. A cord is constructed from a user-positioned guide curve, which specifies an approximate path the cord should follow with respect to geometry. This guide curve, along with a small set of appearance properties, parameterizes a geometric construction that is capable of capturing the visual appearance of a variety of materials, including strings, wires, and rubber bands.