I think that the way a large forest of meshes works, is that you use a very low poly mesh (or sprite) for long distance views of objects, (and only show items that are close. Easy to do in a forest since the visual range is low). Once the player gets closer to an object swap with a higher poly mesh. The landscape meshes do this LOD (level of detail) well. But i dont know if you can use that sort of feature on a basic mesh.
Just a thought. im not interested in contributing time though. sorry
Just a thought. im not interested in contributing time though. sorry