Make particles react to emitter's velocity

Is there any built-in way to have the particles in a particle system stretch or change color or size in response to the emitter's velocity? Not the particle's own local speed. I mean like if the particle effect is on a torch, and you swing the torch around quickly, is there a way to have the particle color or size react to that?

 

i remember seeing nice flame torch example in some unity blog or release notes post.. (couldn't find it right now though)

but maybe with this can do something:
https://docs.unity3d.com/Manual/PartSysInheritVelocity.html

 

Being able to stretch the billboard by the emitter's speed instead of (or in addition to) the particle's local speed would be great; I think a lot of people would have a use for that. Inherit Velocity and Emission by Distance instead of just Time are working pretty well for now.

 

@richardkettlewell yeah there's that static torch with distortion effect,
still somewhere i remember seeing gif, where the torch was moving side to side fast and the flames would react to it nicely.. checked blog all posts with particles, but couldn't find it, might had been in the forums or maybe release notes (pretty sure it was from unity).. it was showcasing some particle module or effect for that flame.

 

..finally

• Particles: Lifetime by Emitter Speed Module, for controlling how long-lived particles are based on the speed of the emitter at the time they were emitted. This is for instance useful for moving fire.

https://unity3d.com/unity/whats-new/2020.1.0

 

Oh, that's perfect..... unfortunately I'm stuck on Unity 2019 for this project. But, maybe someday...