为了满足林火图像实时绘制的需求,在总结近几年国内外对粒子系统的研究及对林火的认识的基础上,提出了一种适合大场景林火实时绘制的新型粒子系统模型。该模型对传统粒子的属性定义、基本粒子的运动及基本粒子的绘制等方面均做了补充和改进,并且采用硬件加速纹理技术提高了绘制的效果和效率,应用结果表明,该模型可以实时绘制出效果逼真的火焰图像,此模型所采用的技术也适用于其他不规则物体(如:烟、云等)的绘制。

Based on research on the latest literature and the understanding to forest-fire home and abroad,we provide a new kind of model by particles system to real-time simulate and render the large-scale forest fire.In this model,we improve the traditional particle system in the attribute,the movement and the rendering method of individual particle.In addition,we use the hardware-accelerated texture technology to improve the effect and efficiency of rendering.Meanwhile,the technologies adopted in the model also can be applied to other fuzzy objects(such as smoke,cloud and so on).