Spherical Visibility Sampling

B. Eikel, C. Jähn, M. Fischer, F. Meyer auf der Heide, in: Computer Graphics Forum, 2013, pp. 49–58.

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Conference Paper | Published | English
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Abstract
Many 3D scenes (e.g. generated from CAD data) are composed of a multitude of objects that are nested in each other. A showroom, for instance, may contain multiple cars and every car has a gearbox with many gearwheels located inside. Because the objects occlude each other, only few are visible from outside. We present a new technique, Spherical Visibility Sampling (SVS), for real-time 3D rendering of such -- possibly highly complex -- scenes. SVS exploits the occlusion and annotates hierarchically structured objects with directional visibility information in a preprocessing step. For different directions, the directional visibility encodes which objects of a scene's region are visible from the outside of the regions' enclosing bounding sphere. Since there is no need to store a separate view space subdivision as in most techniques based on preprocessed visibility, a small memory footprint is achieved. Using the directional visibility information for an interactive walkthrough, the potentially visible objects can be retrieved very efficiently without the need for further visibility tests. Our evaluation shows that using SVS allows to preprocess complex 3D scenes fast and to visualize them in real time (e.g. a Power Plant model and five animated Boeing 777 models with billions of triangles). Because SVS does not require hardware support for occlusion culling during rendering, it is even applicable for rendering large scenes on mobile devices.
Publishing Year
Proceedings Title
Computer Graphics Forum
Volume
32
Issue
4
Page
49-58
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Eikel B, Jähn C, Fischer M, Meyer auf der Heide F. Spherical Visibility Sampling. In: Computer Graphics Forum. Vol 32. Proceedings of the 24th Eurographics Symposium on Rendering. ; 2013:49-58. doi:10.1111/cgf.12150
Eikel, B., Jähn, C., Fischer, M., & Meyer auf der Heide, F. (2013). Spherical Visibility Sampling. In Computer Graphics Forum (Vol. 32, pp. 49–58). https://doi.org/10.1111/cgf.12150
@inproceedings{Eikel_Jähn_Fischer_Meyer auf der Heide_2013, series={Proceedings of the 24th Eurographics Symposium on Rendering}, title={Spherical Visibility Sampling}, volume={32}, DOI={10.1111/cgf.12150}, number={4}, booktitle={Computer Graphics Forum}, author={Eikel, Benjamin and Jähn, Claudius and Fischer, Matthias and Meyer auf der Heide, Friedhelm}, year={2013}, pages={49–58}, collection={Proceedings of the 24th Eurographics Symposium on Rendering} }
Eikel, Benjamin, Claudius Jähn, Matthias Fischer, and Friedhelm Meyer auf der Heide. “Spherical Visibility Sampling.” In Computer Graphics Forum, 32:49–58. Proceedings of the 24th Eurographics Symposium on Rendering, 2013. https://doi.org/10.1111/cgf.12150.
B. Eikel, C. Jähn, M. Fischer, and F. Meyer auf der Heide, “Spherical Visibility Sampling,” in Computer Graphics Forum, 2013, vol. 32, no. 4, pp. 49–58.
Eikel, Benjamin, et al. “Spherical Visibility Sampling.” Computer Graphics Forum, vol. 32, no. 4, 2013, pp. 49–58, doi:10.1111/cgf.12150.

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