This paper presents a method for animating and rendering an interactive natural scenery in real-time. It improves the prairie model of [11] by enabling the on-the-fly generation of blades of grass, at three different levels of detail, from user-specified density maps. A new animation function, the tread on grass, is defined to allow virtual objects or characters to crush the grass. The resulting grass model is incorporated into a more complex natural scene with the adjunction of trees that respond to the same wind. Results are illustrated by the real-time animation of autonomous virtual humans interacting with this natural scenery.

@inproceedings{GPRFC03,
author = {Sylvain Guerraz and Frank Perbet and David Raulo and Fran\c{c}ois Faure and Marie-Paule Cani},
title = {A Procedural Approach to Animate Interactive Natural Sceneries},
booktitle = {16th International Conference on Computer Animation and Social Agents, CASA 2003, May, 2003},
address = {Rutgers University, New Brunswick, NJ, Etats-Unis},
publisher = {IEEE},
pages = {73--78},
month = mai,
year = 2003
}