Synthesizing Geologically Coherent Cave Networks

Axel Paris and Eric Guérin and Adrien Peytavie and Pauline Collon and Eric Galin. ( 2021 )
in: Computer Graphics Forum, 40:7

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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BibTeX Reference

@ARTICLE{,
    author = { Paris, Axel and Guérin, Eric and Peytavie, Adrien and Collon, Pauline and Galin, Eric },
     title = { Synthesizing Geologically Coherent Cave Networks },
   journal = { Computer Graphics Forum },
    volume = { 40 },
    number = { 7 },
      year = { 2021 },
       url = { https://hal.archives-ouvertes.fr/hal-03331697 },
       doi = { 10.1111/cgf.14420 },
  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. }
}