video shows LOD debugging, zooming in to show difference between 3 levels of LOD :
0 - blue, closest, full detail
1 - yellow, medium, half detail, half density, double thickness
2 - green, far, quarter detail, quarter density, 4 x thickness
it's not configured to look good from above, only really from 'eye' level, for now.
It also shows rotating around the grass, since its not camera aligned there is no weird spinning effect