Move terrain in cycle from height map

[imosek8]

Hello everybody! I'd like to create a terrain that is moving in cycle generated from height map in effective way. I created mesh with 

new BABYLON.Mesh.CreateGroundFromHeightMap('ground', "http://i1198.photobucket.com/albums/aa455/BelindaSaxondale/album/HeightMap.jpg", 200, 200, 50, -20, 20, scene, true);

So I have 200x200 plane with 50 subdivisions. Then I registered before render function in which I take first 51*3 points (51 vertices, cause there is 51*51 vertices) and put it at the end of position array of vertices data of mesh. So it should move the terrain in the cycle, but maybe I'm doing something wrong. Here is my playground: http://www.babylonjs-playground.com/#1CUE8G#5 . I achived something like this here: http://www.babylonjs-playground.com/#1CUE8G#3 but I don't think it's effective way.

 

[Wingnut]

Hi I

Effective, efficient, or not... #3 is very cool... and quite fast.  I have been looking for ways to simulate high speeds... and #3 is does it well.

ArcCam view from re-positioned sphere... crazy ground-hugging speeds.    Fun!  http://www.babylonjs-playground.com/#1CUE8G#8

I think that's fast enough for jet flight sim, or dragster/funnycar racing.  Pretty nice!  Well done.

Add a little vibration, a little banking, and it gets "intense".    http://www.babylonjs-playground.com/#1CUE8G#10

I have no other suggestions.  Sorry.  Just wanted to give #3 the Wingnut Stamp of Coolness. 

[imosek8]

@Wingnut Thanks for your response. It looks nice!  But I also would like to know why #5 doesn't work? It doesn't do the same ?