(
) I’m a ghost ()
Dat grass ! 420 ! Would blaze it !
More seriously, I’m really interested to know what’s your plan on this matter and how far you want to go ?
There is a solution to grass right now with the almighty @pspeed IsoSurface solution but it is not really integrated with TerraMonkey (If I’m not mistaken?)
You can take a look at my attempt to make a plugin integrated with TerraMonkey 
[here] (https://hub.jmonkeyengine.org/t/how-to-grass-reborn-the-forest) and there