A Gradient-Based Implicit Blend

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
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Contributor : Marie-Paule Cani <>
Submitted on : Sunday, November 18, 2012 - 10:10:16 PM
Last modification on : Friday, April 12, 2019 - 4:23:00 PM
Document(s) archivé(s) le : Thursday, February 21, 2013 - 11:01:12 AM

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Olivier Gourmel, Loïc Barthe, Marie-Paule Cani, Brian Wyvill, Adrien Bernhardt, et al.. A Gradient-Based Implicit Blend. ACM Transactions on Graphics, Association for Computing Machinery, 2013, 32 (2), pp.Article No. 12. ⟨10.1145/2451236.2451238⟩. ⟨hal-00753246⟩

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