Lazer Sword leaving a trail?

Unity Engine
1

Does anyone have an idea of how to do it?.. i know how to make a beamsword model and put a special kind of material too look like its glowing… what i dont know, is to make it leave a trai like, shadows when the character swing the sword… kinda like this

i accept any kind of ideas, theories, conjectures and even criticism

2

*laser

Use a trail renderer?

3

oh ok!. laser

i had no idea of this feature… trail renderer… well… im gonna read everthing i can google about it, thanks!!

4

No problem.