基于OpenGVS战场火焰烟雾的模拟

战场特效有助于虚拟战场环境气氛的烘托,其模拟质量直接影响着整个战场仿真的质量.对于战场上的烟雾、火焰等不规则物体,不能采用传统的几何方法建模,而只能采用粒子系统等复杂的数学模型进行模拟.但在战场环境模拟时,同一场景中常常会出现多处火焰、烟雾的情况,这时巨大的计算量势必大大影响场景仿真的实时性.文章对基于OpenGVS的特效实现方法进行了研究,提出一种基于OpenGVS开发平台,将粒子系统模型与二维纹理动画模拟相结合的实现方式,明显减少了模拟所需计算量.将此方法运用到某型高炮训练仿真器的场景模拟中,实际应用表明,保证实时性的同时使战场特效得到了高质量的模拟.

Simulation of Smoke and Fire in Battlefield with OpenGVS

The special effects in battlefield help to foil the atmosphere of virtual battlefield environment and the quality of the simulation affects the quality of the whole battlefield simulation.The anomalistic objects such as fire and smoke cannot be simulated by traditional geometry method but can be only simulated by adopting complicated math models such as particle system.However,there are often several fire and smoke effects that need to be simulated in one scene when simulating battlefield environment.The huge cost of calculation will definitely have great impact on the synchronization of virtual scene.This paper does some research on the methods of simulating special effects with OpenGVS,and puts forward a method which combines the particle system method with 2-D texture animation method based on OpenGVS which reduces the cost of calculation for simulation obviously.This paper uses the method in virtual scene for one cannon training emluator and it is proved by practice that the special effects are simulated commendably with synchronization of virtual scene being guaranteed.