A Gradient-Based Implicit Blend

Olivier Gourmel; Loïc Barthe; Marie-Paule Cani; Brian Wyvill; Adrien Bernhardt; Mathias Paulin; Herbert Grasberger

A Gradient-Based Implicit Blend

Olivier Gourmel ¹ Loïc Barthe ^{1, *} Marie-Paule Cani ^{2, *} Brian Wyvill ³ Adrien Bernhardt ^{2, *} Mathias Paulin ¹ Herbert Grasberger ³

* Corresponding author

1 IRIT - Institut de recherche en informatique de Toulouse

2 IMAGINE - Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments

Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, INPG - Institut National Polytechnique de Grenoble

3 Department of Computer Science [Victoria]

Abstract : We introduce a new family of binary composition operators that solves four major problems of constructive implicit modeling: suppressing bulges when two shapes merge, avoiding unwanted blending at a distance, ensuring that the resulting shape keeps the topology of the union, and enabling sharp details to be added without being blown up. The key idea is that field functions should not only be combined based on their values, but also on their gradients.We implement this idea through a family of C1 composition operators evaluated on the GPU for efficiency, and illustrate it by applications to constructive modeling and animation.

keyword : Shape

Document type :

Journal articles

Domain :

Computer Science [cs] / Graphics [cs.GR]

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https://hal.inria.fr/hal-00753246
Contributor : Marie-Paule Cani <>
Submitted on : Sunday, November 18, 2012 - 10:10:16 PM
Last modification on : Friday, October 11, 2019 - 8:22:48 PM
Long-term archiving on : Thursday, February 21, 2013 - 11:01:12 AM

A Gradient-Based Implicit Blend

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A Gradient-Based Implicit Blend

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