How to fix particle rotation in world coordinates?

[turbotanaka]

I’m creating a lingering smoke effect.
This is spawned in world coordinates and made to disappear over time, but it looks bad because the particle rotation is fixed in screen coordinates.
This means that when you rotate the camera, the particles rotate too.
To stop this, i want to fix the particle orientation in world coordinates.
Is that possible?

[ClockworkOcean]

Check out this vid

Sprite Rotation Sprite Alignment Sprite Facing | UE5 Niagara Tutorial | Download Project File

Al l facing options are covered

[turbotanaka]

This video was very helpful!
Setting the alignment to Velocity and making the initial velocity a variable and assigning the normalized velocity of the object worked.
Thank you for your help.

[ClockworkOcean]

I spent hours trying to get the particle to face downwards in world space.

Turns out you can’t just say 0,0,-1 as custom vector ( the particle just disappears ), you have to say 0.001,0,-1, some very small X