Per Ohlsson
Uppsala University, Sweden
Stefan Seipel
Uppsala University, Sweden
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Published in: The Annual SIGRAD Conference. Special Theme - Environmental Visualization
Linköping Electronic Conference Proceedings 13:7, p. 25-31
Published: 2004-11-24
ISBN:
ISSN: 1650-3686 (print), 1650-3740 (online)
This paper presents a method of computing snow accumulation as a per pixel effect while rendering the scene. The method is similar to the shadow mapping method for shadow calculations. A depth buffer is used to find out how much snow a particular surface should receive. The amount of snow is then modified depending on the slope of the surface. To render the snow in a convincing way 3D noise is utilized for the lighting of the snow surface.
Everitt; C.; Rege; A.; and Cebenoyan; C.; 2002. Hardware shadow mapping; ACM SIGGRAPH 2002 Tutorial Course #31: Interactive Geometric Computations using graphics hardware; ACM; F38-F51
Fearing; Paul 2000. Computer Modelling Of Fallen Snow. Proceedings of the 27th annual conference on Computer graphics and interactive techniques; 37-46
Haglund; H.; Anderson; M.; and Hast; A.; 2002. Snow Accumulation in Real-Time; Proceedings of SIGRAD 2002; 11-15
Hsu; S.C; and Wong; T.T. 1995. Visual Simulation of Dust Accumulation; IEEE Computer Graphics and Applications 15; 1; 18-22
Nishita T.; Iwasaki; H.; Dobashi; Y.; and Nakamae; F. 1997. A Modeling and Rendering Method for Snow by Using Metaballs. Computer Graphics Forum; Vol 16; No. 3; C357
Perlin; Ken; 1985. An Image Synthesizer; Computer Graphics (Proceedings of ACM SIGGRAPH 85); 19; 3; 287-296
Summers; Robert W.; O’Brien; James F.; and Hodgins; Jessica K. 1998. Animating Sand; Mud; and Snow. The Proceedings of Graphics Interface’98; 125-132
