How to install nvidia flex into unreal engine?

I downloaded UnrealEngine-Flex zip file and extract it so I have this

i just dont know how to insttal that plugin in unreal, ty if some1 know :smiley:

Flex doesn’t ship as a UE4 plugin because it requires changes to the engine that aren’t exposed by the UE4 plugin API.

The screenshot you sent is of the Flex programmers SDK, to use Flex in UE4 you need to download this branch:

https://github.com/NvPhysX/UnrealEngine/tree/FleX-4.15.0

And either use it directly or merge it into your own UE4 branch.