How create a crowd style Rocksmith ?

Hello everyone !

I'm looking to create an audience (an audience, a crowd, spectators) in a music band scene. As in the example of the game "Rocksmith"!

You have the photos and the link of the video to show you what I'm trying to do in my video game with Unity.

Do you have any idea how to create an audience like Rocksmith? In Rocksmith it's not a 3D animation, because as I try it takes a lot of memory. I think rather of a kind of "sprite" 2D, which was used logically, to be less heavy in performance ...

That's why I'm asking you how to create the same audience style as in the game "Rocksmith" on Unity? And what should I use?

look video crowd in the game Rocksmith :

 

No one can help for create the crowd of band music with unity ?!

 

use video texture with alpha channel

 

I despair to have an answer, thank you very much for sharing the idea.

You mean to put a video of a crowd. Who will be on a "GameObject" like a cube and put a "Shader" Alpha in it? Would it be that easy?
I am waiting for your answer, if I am wrong I would be interested in explaining your idea!
Thank you in advance for your help

 

Thank you very much for your solution, I managed to create what I wanted!