对不规则模糊物体模拟是计算机图形学研究的热点问题之一，其中火焰是一种常见的涉及面较广的自然现象，因此火焰模拟具有重要意义。本文提出了一种基于粒子系统和纹理映射以及OpenGL混合技术的３Ｄ火焰模拟模型，本方法采用特定的几何造型作为基本粒子，既能提高绘制速度又能降低计算量，并通过粒子混合实现了火焰不同区域颜色的变化，同时反映了其中温度的差异。另外该方法还反映了风力对粒子系统的影响。实验结果表明，利用该方法模拟的火焰逼真，占用资源少，能较好地满足多种场合的实时绘制需要-　 Pairs of irregular fuzzy objects, computer graphics simulation of the hot topic of research, in which the flame is a common natural phenomenon involves a broader, so the flame simulation of great significance. This paper presents a particle system based on OpenGL and texture mapping, as well as hybrid technology, 3D fire simulation model, this method is the use of specific geometric shape as the elementary particles, both to improve rendering speed as well as lower calculation of the amount of particle mixing achieved through the flame different regions of the color change, while reflecting a temperature difference. In addition the method also reflects the impact of wind on the particle system. Experimental results show that using the realistic simulation of the flame, taking up less resources and can better meet the needs of a variety of occasions, the real-time rendering.