grass after updating from 4.7.6 to 4.8

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1

Hello
I just update to 4.8 and my grass it just got worst, here some pictures

4.7.6 looks ok

46076-2015-06-12+09_12_59-notthechosenone+-+unreal+editor.png
46076-2015-06-12+09_12_59-notthechosenone+-+unreal+editor.png896×294 333 KB

and here how it looks in 4.8

46077-2015-06-12+09_11_57-notthechosenone+-+unreal+editor.png
46077-2015-06-12+09_11_57-notthechosenone+-+unreal+editor.png716×300 163 KB

is there any reason why something like that should happen there is something new to do in the 4.8 to have a good looking grass.

please help me out.

Davide

2

(SOLVED)
I have found a solution with this tutorial