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SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
A generalized de Casteljau approach to 3D free-form deformation
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
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GI '96 Proceedings of the conference on Graphics interface '96
Shape transformation using variational implicit functions
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
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Proceedings of the Eurographic workshop on Computer animation and simulation
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In this article, w e presen t ouraxial four dimensional deformation tool. This tool is defined in the con textof geometrical modeling of animations, where animations are represen ted by four dimension p polyhedrons, and it p ermits to con trol theshap e/top ologyof animations.We illustrate this tool by deforming animations represen tinga motionless ob ject into the merging of tw o similar ob jects. And w e show h ow con trolling the shap e of thetool enables to con trol thepath the ob jects follow during the merging but also the smoothness of the merging.