| dc.description.abstract | The 3D visualization is a key component of a virtual-reality application system. There are many techniques influencing the performance and reality of the 3D visualization, such as, collision detection, visual effects, physical modeling, etc.
In this study, we develop techniques of collision detection and visual effects for applications in a virtual environment. The collision detection emphasizes simulating the walking behaviors of human in a virtual environment, such as, walking, going up/down hill, going up/down stairs, etc. The visual effects are emphasized resulting from the attributes of collided objects, not just from the behavior of a collision of two objects. In the practices of visual effects, we first design data structures of attributes to describe properties of objects. Second, we use constrained physical formulas to deduce the parameters for a specific visual effect from the attributes of collided objects. At last, we implement a particle system to manage all visual effects in a virtual environment. In the second and third stages, we construct a “FXEditor” system to edit the visual effects and to render the simulating effects for helping the generation of visual effects. | en_US |