“Modeling Asteroid (101955) Bennu as a Real-time Terrain” by Englert

  • ©Matthias Englert

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Entry Number: 02

Title:

    Modeling Asteroid (101955) Bennu as a Real-time Terrain

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Abstract:


    Using a commercial terrain engine [Englert 2012], we show how to model the complex surface of asteroid (101955) Bennu [Science 1999] with a hybrid approach that combines digital elevation models with static and dynamic displacement. Then we show how to adapt tri-planar material mapping (TRIMAP) to the curvature of planetary bodies, in order to effectively avoid all inherent texturing artefacts.

References:


    Brüderlin, M. Heyer, and S. Pfützner. 2007. Interviews3D: A Platform for Interactive Handling of Massive Data Sets. IEEE Computer Graphics and Applications 27, 6 (2007), 48–59. https://doi.org/10.1109/MCG.2007.153

    Matthias Englert. 2012. Tinman 3D SDK – Real-time Terrain. https://www.tinman3d.com Matthias Englert. 2020. Using Mesh Shaders for Continuous Level-of-Detail Terrain Rendering. In ACM SIGGRAPH 2020 Talks (Virtual Event, USA) (SIGGRAPH ’20). Association for Computing Machinery, New York, NY, USA, Article 44, 2 pages. https://doi.org/10.1145/3388767.3407391

    Kimmo Karhu. 2002. Displacement Mapping. (04 2002).

    Martin Lambers and Andreas Kolb. 2012. Ellipsoidal Cube Maps for Accurate Rendering of Planetary-Scale Terrain Data. In Pacific Graphics Short Papers, Chris Bregler, Pedro Sander, and Michael Wimmer (Eds.). The Eurographics Association. https: //doi.org/10.2312/PE/PG/PG2012short/005-010

    Peter Lindstrom, David Koller, William Ribarsky, Larry F. Hodges, Nick Faust, and Gregory A. Turner. 1996. Real-Time, Continuous Level of Detail Rendering of Height Fields. In Proceedings of the 23rd Annual Conference on Computer Graphics and Interactive Techniques (SIGGRAPH ’96). Association for Computing Machinery, New York, NY, USA, 109–118. https://doi.org/10.1145/237170.237217

    Michael C. Nolan, Christopher Magri, Ellen S. Howell, Lance A.M. Benner, Jon D.  Giorgini, Carl W. Hergenrother, R. Scott Hudson, Dante S. Lauretta, Jean-Luc Mar- got, Steven J. Ostro, and Daniel J. Scheeres. 2013. Shape model and surface properties  of the OSIRIS-REx target Asteroid (101955) Bennu from radar and lightcurve observations. Icarus 226, 1 (2013), 629–640. https://doi.org/10.1016/j.icarus.2013.05.028

     

    Mengqi Peng, Jun Xing, and Li-Yi Wei. 2018. Autocomplete 3D Sculpting. ACM Trans. Graph. 37, 4, Article 132 (July 2018), 15 pages. https://doi.org/10.1145/3197517. 3201297

    Wolfram Research. 2016. GaussianFilter. https://reference.wolfram.com/language/ref/ GaussianFilter.html

    NASA Science. 1999. 101955 Bennu. https://solarsystem.nasa.gov/asteroids-comets- and-meteors/asteroids/101955-bennu/overview/

    Sebastian Weiss, Florian Bayer, and Rüdiger Westermann. 2020. Triplanar Displacement Mapping for Terrain Rendering. In 41st Annual Conference of the European Association for Computer Graphics, Eurographics 2020 – Short Papers, Norrköping, Sweden, May 25-29, 2020 [online only], Alexander Wilkie and Francesco Banterle (Eds.). Eurographics Association, 53–56. https://doi.org/10.2312/egs.20201016

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