Biography :
Dr Geoffrey Y. Gardner has been a Senoir Staff Scientist at Northrop Grumman
Data Systems Division since 1986. He has been working in the field of Computer
Graphics since 1976.
Project : Data Systems Division Technology Department
Video(s) and extracted images: 320*240
Film 1
Video QuickTime ->
(4.0 Mo)
Jpeg Images ->
(9 Ko)
Film 2
Video QuickTime ->
(4.8 Mo)
Jpeg Images ->
(11 Ko)
Description
Forest Fire propagation is simulated using fractal ellipsoids driven by
a heurisyic dynamic model. An elliptical region of fire is defined oriented
in a specified wind direction of the wind and is proportional to its speed.
Fire, smoke and trees are modeled with ellipsoids whose shading and translucence
are modulated by a 3-D fractal texture function, which simulates a naturally-
random Gaussian mass distribution in each ellipsoid. All smoke ellipsoids are
textured with the same pattern which moves downwind with the ellipsoids. Fire
flicker is simulated by moving a second fractal pattern rapidly over stationary
fire ellipsoids.