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Synthesizing Geologically Coherent Cave Networks

Axel Paris 1 Adrien Peytavie 1 Eric Guérin 1 Pauline P. Collon 2 Eric Galin 1 
1 Origami - Origami
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
Abstract : We present a geologically-based method to generate complex karstic networks. Karsts are a type of landscape formed by the dissolution of highly soluble rocks (generally limestones). In particular, they are characterized by complex underground networks made of varieties of tunnels and breakout chambers with stalagmites and stalactites. Our method computes skeletons of karstic networks by using a gridless anisotropic shortest path algorithm according to field data of the underground system (such as inlets and outlets), geomorphological features and parameters such as faults, inception horizons, fractures, and permeability contrasts. From this skeleton, we define the geometry of the conduits as a signed distance function construction tree combining primitives with blending and warping operators. Our framework provides multiple levels of control, allowing us to author both the structure of the karstic network and the geometric cross-section shapes and details of the generated conduits.
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https://hal.archives-ouvertes.fr/hal-03331697
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Submitted on : Friday, September 10, 2021 - 1:15:04 PM
Last modification on : Tuesday, April 26, 2022 - 4:31:55 PM

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Axel Paris, Adrien Peytavie, Eric Guérin, Pauline P. Collon, Eric Galin. Synthesizing Geologically Coherent Cave Networks. Computer Graphics Forum, Wiley, In press, ⟨10.1111/cgf.14420⟩. ⟨hal-03331697v2⟩

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