Is there any vegetation rendering example for Urho3D? Like this one for Ogre: http://www.ogre3d.org/forums/viewtopic.php?f=25&t=85626
For the grass part, you can check out Lumak's 10K grass nodes..
Hope that helps.
Is there anything like automatic billboarding for trees and stuff?
I have written some vegetation stuff including grass, billboards, per-instance wind and smooth LOD transition, but it is pretty dirty and I haven't published it.
So, it is possible in Urho via almost standard rendering classes.
I'd like to see this released, dirty or not, and have others contribute to it.
Very impressive, thank you!