统一-如何以45度的步长发射粒子?

假设您使用的是Unity 5.6:

创建新的粒子系统。设置以下属性:

Looping: No
Emission
    Rate over Time: 0
    Rate over Distance: 0
  Add 1 burst:
    Time: 0.00
    Min: 8
    Max: 8
    Cycles: 1

Shape
    Shape: Circle
    Radius: 2 (or whatever value you want the minimum radius of the shape to be)
    Arc: 360
      Mode: Burst Spread
      Spread: 0.125
    Emit from Edge: Yes
    Align To Direction: No
    Randomize Direction: 0
    Spherize Direction: 0

Renderer
    Render Mode: Stretched Billboard
    Length Scale: 2

要生成更长的线,请增加渲染器的长度比例和形状的半径。