一种多点爆炸效果的实时生成方法

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一种多点爆炸效果的实时生成方法

本发明提出了一种多点爆炸效果的实时生成方法，通过速度场模型的建立和计算，对经典的流体运动模型Navier-Stokes方程进行简化处理，采用分步法在GPU上实现模型求解，获得速度场；粒子系统的更新，在GPU上根据速度场的值更新粒子的位置，根据爆炸光照模型更新粒子的颜色，并更新粒子的其他属性；真实感绘制，根据粒子中心点图元生成四边形粒子图元，利用三维纹理给粒子贴图，得到最终的颜色。本发明可完全基于GPU来实现物理模型的计算、粒子系统的更新和绘制，具有实时性好，物理真实感强的特点。

Real-time generation method for multi-point blasting effect

The invention provides a real-time generation method for a multi-point blasting effect. The real-time generation method comprises the steps that a speed field model is established and calculated, a classic fluid motion model Navier-Stokes formula is simplified, model solution is realized on a GPU through a fractional step method, and a speed field is obtained; a particle system is updated, the positions of particles are updated on the GPU according to the value of the speed field, the colors of the particles are undated according to a blast illumination model, and other attributes of the particles are updated; and reality is mapped, quadrilateral particle pixels are generated according to the central point pixels of the particles, the particles are mapped through three-dimensional textures, and the final color is obtained. According to the real-time generation method, calculation of physical models, and updating and mapping of particle systems are achieved totally based on the GPU, and the characteristics of good real-time performance and high physical realism are achieved.