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  Interactive Volume Caustics in Single-scattering Media

Hu, W., Dong, Z., Ihrke, I., Grosch, T., Yuan, G., & Seidel, H.-P. (2010). Interactive Volume Caustics in Single-scattering Media. In A. Varshney, C. Wyman, D. Aliaga, & M. M. Oliveira (Eds.), Proceedings I3D 2010 (pp. 109-117). New York, NY: ACM. doi:10.1145/1730804.1730822.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-175B-9 Version Permalink: https://hdl.handle.net/21.11116/0000-000F-5B04-7
Genre: Conference Paper

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 Creators:
Hu, Wei1, Author
Dong, Zhao2, Author           
Ihrke, Ivo1, Author           
Grosch, Thorsten1, Author           
Yuan, Guodong1, Author
Seidel, Hans-Peter2, Author                 
Affiliations:
1External Organizations, ou_persistent22              
2Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              

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 Abstract: Volume caustics are intricate illumination patterns formed by light first
interacting with a specular surface and subsequently being scattered inside a
participating medium. Although this phenomenon can be simulated by existing
techniques, image synthesis is usually non-trivial and time-consuming.

Motivated by interactive applications, we propose a novel volume caustics
rendering method for single-scattering participating media. Our method is based
on the observation that line rendering of illumination rays into the screen
buffer establishes a direct light path between the viewer and the light source.
This connection is introduced via a single scattering event for every pixel
affected by the line primitive. Since the GPU is a parallel processor, the
radiance contributions of these light paths to each of the pixels can be
computed and accumulated independently. The implementation of our method is
straightforward and we show that it can be seamlessly integrated with existing
methods for rendering participating media.

We achieve high-quality results at real-time frame rates for large and dynamic
scenes containing homogeneous participating media. For inhomogeneous media, our
method achieves interactive performance that is close to real-time. Our method
is based on a simplified physical model and can thus be used for generating
physically plausible previews of expensive lighting simulations quickly.

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Language(s): eng - English
 Dates: 2011-01-2120102010
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 537283
DOI: 10.1145/1730804.1730822
BibTex Citekey: HDI:2010:VolumeCaustics
 Degree: -

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Title: ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Place of Event: Washington, DC, US
Start-/End Date: 2010-02-19 - 2010-02-21

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Title: Proceedings I3D 2010
  Abbreviation : I3D 2010
  Subtitle : ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Source Genre: Proceedings
 Creator(s):
Varshney, Amitabh1, Editor
Wyman, Chris1, Editor
Aliaga, Daniel1, Editor
Oliveira, Manuel M.1, Editor
Affiliations:
1 External Organizations, ou_persistent22            
Publ. Info: New York, NY : ACM
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 109 - 117 Identifier: ISBN: 978-1-60558-939-8