Geodesic
Development of a High Quality Expression System of Natural Elements Using the Real-Time Simulation Method
Journal for geometry and graphics, Tome 11 (2007) no. 1, pp. 45-57.

Voir la notice de l'article provenant de la source Heldermann Verlag

For a real-time simulation by Virtual Reality technology an expression method of sunlight, shadows, grass, and water is developed. These are elements requiring especially high operating frequency in a landscape simulation. For shadow expression, two functions are required: the movement of a light source to duplicate a solar orbit, and the rendering of shadows. For grass expression, texture mapping is performed by a shader program using HLSL (High Level Shader Language), raising the transparency of each polygon. For water expression, refraction of light is expressed with HLSL by carrying out bump mapping of the image under the water surface to the material of a water surface object. Reflection of light is realized by piling up the upside-down picture which sets a dummy camera to the position which reversed the camera to the water surface, and a dummy camera draws on it by HLSL to the material of a water surface object.
Classification : 68U05, 51N05
Mots-clés : Environmental design, real-time simulation, virtual reality, expression of natural elements, close-range view, system development 
@article{JGG_2007_11_1_JGG_2007_11_1_a4,
     author = {T. Fukuda and K. Sakata and W. Yeo and A. Kaga },
     title = {Development of a {High} {Quality} {Expression} {System} of {Natural} {Elements} {Using} the {Real-Time} {Simulation} {Method}},
     journal = {Journal for geometry and graphics},
     pages = {45--57},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a4/}
}
TY  - JOUR
AU  - T. Fukuda
AU  - K. Sakata
AU  - W. Yeo
AU  - A. Kaga 
TI  - Development of a High Quality Expression System of Natural Elements Using the Real-Time Simulation Method
JO  - Journal for geometry and graphics
PY  - 2007
SP  - 45
EP  - 57
VL  - 11
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a4/
ID  - JGG_2007_11_1_JGG_2007_11_1_a4
ER  - 
%0 Journal Article
%A T. Fukuda
%A K. Sakata
%A W. Yeo
%A A. Kaga 
%T Development of a High Quality Expression System of Natural Elements Using the Real-Time Simulation Method
%J Journal for geometry and graphics
%D 2007
%P 45-57
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a4/
%F JGG_2007_11_1_JGG_2007_11_1_a4
T. Fukuda; K. Sakata; W. Yeo; A. Kaga . Development of a High Quality Expression System of Natural Elements Using the Real-Time Simulation Method. Journal for geometry and graphics, Tome 11 (2007) no. 1, pp. 45-57. http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a4/