Hiya, here is my latest: -Managed to get the "flying grass" problem fixed. -Started applying grass to my level with this method: -Create empty game object and put new grass manager in it -Disable "when combiner is full checkbox" -Enable "Disable after grow" and "Eliminate original" checkboxes -Place ~100 patches of grass -Ungrow in editor -Repeat With this manner I have been able to populate about 5th of my 3000*3000 terrain. Anyway if I add any more the game will crash in the beginning when grass is grown. Is there any setting to make my grass lighter so I could have more? I don't know how it works under the hood but the bulk of the grass is made with single brush. Made me wonder is there a way to reuse the same geometry somehow, as having individual geometry for each patch would result in awful lot of geometry. Here is the video... audio is a bit low so you might need to turn it up to hear. Thanks Teemu P.S Here is an overview pic of the 15 grass managers holding about half of the needed grass amount for the map. This amount will crash instantly in the play mode.