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«Natalya Tatarchuk 3D Application Research Group ATI Research What’s in It for You? • Share our lessons of developing an extensive environment for ...»

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Convincing and visually pleasing rendering of rain effects enhances the realism of outdoor scenes in many applications. In this paper we described a comprehensive system for interactive rendering of rain effects in real-time in complex environments.

We presented a number of novel effects such as the image-space rainfall rendering, GPU-based water simulation for dynamic puddle rendering, water droplet animation and rendering using graphics hardware and view-dependent wet reflections, amongst all. All of the these effects help us generate an extensive, detail-rich urban environment in stormy weather. We hope that the new technology can be successfully used in the next generation of computer games and real-time rendering.

Acknowledgments

–  –  –

Truly a team effort of which we are all very proud of.

Reference Material

• www.ati.com/developer – All of these presentation and related materials

• http://www.ati.com/developer/techreports.html – Downloadable publications and videos from ATI Research

– Tatarchuk, N. 2006. Dynamic Parallax Occlusion Mapping with Approximate Soft Shadows, ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games – Tatarchuk, N., Isidoro, J. 2006. Artist-Directable Real-Time Rain Rendering in City Environments. Eurographics Workshop on Natural Phenomena, Vienna, Austria, September 2006.

References • [Garg04] GARG K., NAYAR S.: Detection and removal of rain from videos. IEEE Conference on Computer Vision and Pattern Recognition (2004), 528–535.

• [Garg06] GARG K., NAYAR S.: Photorealistic rendering of rain streaks. ACM SIGGRAPH 2006, August 2006.

• [Mason75] MASON B. J.: Clouds, Rain and Rainmaking. Cambridge Press, 1975.

• [Narasimhan03] NARASIMHAN S. G., NAYAR S. K.: Shedding light on the weather. In IEEE CVPR (2003).

• [Starik03] STARIK S., WERMAN M.: Simulation of rain in videos. International Journal of Computer Vision Texture 2003 (The 3rd international workshop on texture analysis and synthesis) (2003), 95–100.

• [WW04] WANG N., WADE B.: Rendering falling rain and snow. ACM SIGGRAPH Sketches (2004).

• [Wang75] WANG T., CLIFFORD R. S.: Use of rainfall-induced optical scintillations to measure path- averaged rain parameters. JOSA (1975), 8–927–237.

Questions?

Thank you!

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