3D 粒子系统 基本结构 添加 3D 粒子系统 内容 3D 粒子系统 粒子系统是游戏引擎特效表现的基础，它可以用于模拟的火、烟、水、云、雪、落叶等自然现象，也可用于模拟发光轨迹、速度线等抽象视觉效果。 基本结构 粒子系统的基本单元是粒子，一个粒子一般具有位置、大小、颜色、速度、加速度、生命周期等属性。在每一帧中，粒子系统一般会执行如下步骤： ...

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