【摘要】 深入分析了航天视景仿真中火、云、烟、雾霾等特殊效果图形生成三种通用的方法：纹理映射、粒子系统、分形图像生成，并对其进行详细的比较分析，此外还进一步介绍了纹理映射中采用的Ｂｉｌｌｂｏａｒｄｉｎｇ和体绘制技术。更多还原

【Abstract】 In this paper, three methods: texture mapping, particle system and fractal image generation are discussed and analyzed to generate fire, smoke, clouds and fog in aerospace visual simulation. In addition, Billboarding and volume rendering are introduced in texture mapping.更多还原