how do i active a pipeline render like this,please help me

Unity Engine
1

603072--21438--$pipe.jpg603072--21438--$pipe.jpg

2

The MegaFiers system for Unity has a path deform modifier that would do that http://forum.unity3d.com/threads/89750-Mega-Fiers.-A-mesh-deformation-system-RELEASE?p=599942&viewfull=1#post599942

3

It is too expensive, I just need to achieve this effect, so could you provide me methods to achieve

4

I’d recommend modeling it in a 3d package. Try Blender3D, Maya, or 3DS Max.

If you can’t do that, you could try programming the cylinder yourself. You can create a new mesh procedurally using the Mesh class. Mesh.vertices is a Vector3 array which holds all the vertices of your mesh. If these concepts are foreign to you, this method probably isn’t for you. If they aren’t foreign to you, then you can probably figure it out from there.