Natural Phenomena


Image(s): 640*480

Jpeg Image (42 Ko) Jpeg Image (34 Ko)



  • Alias (Now Alias|Wavefront, an SGI company)

Video(s) and extracted images: 320*240

Video QuickTime -> Film/Video (3.3 Mo)
Jpeg Images -> (12 Ko)

Video QuickTime -> Film/Video (2.5 Mo)
Jpeg Images -> (10 Ko)


A pine tree grows, a blobby fountain errupts, a worm drops onto a book and crawls off the edge, and a sun rises over water just before a nuclear winter.

Technical Information

Procedural sunrise animation simulating atmospheric and cloud scattering, and showing sunlight reflection off the bottoms of the clouds during "dawn"; animation of the procedural growth of an L-system type pine tree with shadows; Globular dynamics fountain animation - a viscous liquid is simulated with blobbly molecules which have short range repulsion, mid-range attraction and long range indifference; The worm's body is a connected dynamic system with springs and muscle mass, it's forward motion was created dynamically the same way a real worm moves through contraction and contact with the ground. Rendered, modelled and animated using Alias/2 on SGI 4D workstations.

More Information...

  • Bibliography :

    Miller, G. S. P., "The Motion Dynamics of Snakes and Worms", Computer Graphics (SIGGRAPH '88) Volume 22, Number 4, August 1988, pp. 169-178 Miller, G. S. P., and A. Pearce, "Globular Dynamics: A connected particle system for animating viscous fluids", Computer Graphics 13, 3, (1989), pp. 305-309

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