What are the open-source libraries for generating 3d vegetation?

Question

3D

For a client-side application under Desktop / Mobile / Web, you need to generate vegetation (everything is written in C ++, compiled for the Web via emscripten, for Android with NDK, etc.), so everything rests on the fact that one library will be not enough. In addition, I did not find anything free that would generate low poly models well.
Since the main task is not just to use something ready-made, but to gain skills, I am considering such an option as writing my own generation tool, based on existing examples. Unfortunately, I did not come across documented sources on the net, and collecting such "crumbs" from many articles is a very laborious process. Tell me, what is the best place to start?

Answer 1

Generations of the "bush" itself or a set of bushes? If the latter, then it is executed by instances in any engines. But if the first...
From Open Source, I work with Blender and Blend4Web . So, I saw python scripts for Blender that generate bushes, trees, etc. Since the sources are open, it would probably be possible to finish these plugins before generating objects on the server side. And then the finished hive object is exported to json (from the command line using the Blend4Web API) and randomly propagated over the surface.
Theoretically, this should work. The finished build will turn out under WebGL. For other platforms, you can package webGl with some phonegap.
Found a tutorial on one of the plugins:https://www.youtube.com/watch?v=WlRF5S0aHwU
I know for sure that there are several plugins for Blender to generate bushes. Search.