手册
Version:
2018.4
- Unity 用户手册 (2018.4)
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- Unity 用户手册 (2018.4)
- Graphics
- Graphics Reference
- Particle Systems reference
- Particle Systems (Legacy, prior to release 3.5)
- 世界粒子碰撞体 (World Particle Collider)（旧版）
世界粒子碰撞体 (World Particle Collider)（旧版）
__世界粒子碰撞体__用于将粒子与场景中的其他__碰撞体__碰撞。
属性
| 属性： | 功能： |
|---|---|
| Bounce Factor | 粒子碰撞其他物体后可加速或减速。此系数与__粒子动画器 (Particle Animator)__ 的 Damping 属性相似。 |
| Collision Energy Loss | 粒子碰撞时应失去的能量（以秒为单位）。如果能量低于 0，表示粒子被杀死。 |
| Min Kill Velocity | 如果碰撞导致粒子的 Velocity 下降到 Min Kill Velocity 以下，则会淘汰该粒子。 |
| Collides with | 粒子将碰撞哪些层。 |
| Send Collision Message | 如果启用此属性，则每个粒子都会发出一条可通过脚本捕获的碰撞消息。 |
详细信息
要创建带有粒子碰撞体的粒子系统，请执行以下操作：
- 使用 GameObject > Create General > Particle System 创建粒子系统
- 使用 Component > Particles > World Particle Collider 添加粒子碰撞体
消息
如果启用 Send Collision Message__，则任何发生碰撞的粒子都会向粒子的__游戏对象__和粒子碰撞的游戏对象发送 OnParticleCollision()__ 消息。
提示
- Send Collision Message 可用于模拟子弹并对撞击处造成伤害。
- 粒子碰撞检测 (Particle Collision Detection) 在用于大量粒子时速度很慢。请谨慎使用粒子碰撞检测。
- 消息发送会带来很大的开销，不应用于普通的粒子系统。
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