Crowd Simulation Based On Delta3D

In public places, due to the density of crowd is big, the design flaws of security exits, and the uncertainty of the crowd, are all going to increase the risks. Once there is a fire、gas distribution、occurrence of bomb explosions, and terrorist threats and other emergencies will cause the crowd to panic, endanger the evacuation of crowds, thus cause accidents. To solve these problems, we use to make emergency plans acorcding to practical reherasls. The traditional evacuation drills are excuted by the way of meeting arrangements, propagations of paintings, participation of indivisuals. live shows. Because of the constraints of time and finance, these cannot be proceded repeatedly, the effects of drills will not be satisfied. With the development of computer technologies in the game animation virtual training、filmand television effects,safety-aided design, to research crowd simulation through the computer simulaions is becoming a popular topic.This paper uses the Agent method to model crowd simulation with Delta3D three-dimensional game engine. In process of researching, to solve the problems of evacuation paths and collisions among individuals, we adopted the method of navigation graph and applied agent method to individual’s behavior. Considering the unreasonable Zigzag paths, we combined a new algorithm with crowd’s Behavior characteristics to get a reasonable paths. At the same time, in order to exhibit the collisions during the movement of crowd, we used a penetration avoidance rules to correct them. At last, we built a platform with Delat3D under the VC++9.0IDE. And test the platform with three different virtual scenes. The result shows that this platform can directly exhibit the process of crowd’s movement, and also can provide effective data for the design of public buildings.