Is there an way to make fake moving grass?

Is there an way to make fake moving grass for trains etc?

You can use Terrain Grass and select the Terrain in the Explorer window, then in the Properties window check the Decoration box.
Voila! Moving grass.

you cleary didnt read the train part, you know games that have an fake moving train with grass? thats what i ment

Put the terrain on a conveyor belt that goes in a circle like on the wheels of a construction vehicle.

Ah, I read the ‘for trains’ part, but since you didn’t explain that you wanted to have a stationary train with moving ground underneath it I presumed when you said ‘fake moving grass’ that the you wanted a grass Mesh to move.

Go with @xander5610’s suggestion, but I’d use a realllllly big MeshPart Cylinder because it has many more faces than a standard Cylinder Part and would seem to be smoother.

Roblox’s terrain grass made of beams, you can do the same. You should tween properties like ZOffset, CurveSze0, CurveSize1.

can i get an better explanation? does it have to be animated, what time of convenyor belt?

Sorry, I have no idea how to do it. When I said that I was just guessing and thought I would be wrong.