UE 4粒子系统与外部数据通信研究

Research on Communication Between Particle System of UE 4 and External Data

粒子系统被公认为是近年来应用于不规则景物模拟最好的方法.本文对Unreal Engine 4(简称UE 4)的粒子系统加以研究,通过蓝图的可视化编程以及Matinee动画系统实现了粒子系统与内部数据的通信;以VS为开发环境,重点编程实现了粒子系统的外部接口,通过读取外部文本的方式完成了粒子系统与外部数据的通信.这两种通信方式将读取的数据传递到粒子系统的参数中改变其状态,同时外部的通信方式可以将模拟自然景物的算法数据与虚拟场景中粒子系统的参数相结合,使得模拟效果基于科学的计算,提高了其模拟自然景物的真实性和有效性.

Particle system was considered as the best method to simulate the irregular scene in recent years. The particle system of Unreal Engine 4（ UE 4） was studied. And the communication between the particle system and the internal data was realized through the visual programming of the blueprint and the Matinee animation system. With VS as the development environment,external interface of the particle system was programed. The communication between the particle system and the external data was achieved by reading text file. The input data would be transferred into the parameters of the particle system and changed each state. At the same time,the external communication mode was used to combine the simulation of the natural scenery and the parameters of the particle system in the virtual scene. This simulation based on scientific calculation improved the sense of reality and validity in simulation natural scene.