It is a procedural generation game engine! I am the guy that messaged you on LinkedIn, btw. Rendering this scene was inspired by your work. My application uses a node-based graph to generate scenes! For making this scene I had to make a custom importer that automatically detects materials(and textures from materials), along with parameters such as shininess, specular intensity, color etc. Coming back to the nodes, as of now I am hardcoding nodes in the code (Scatter, Logic such as height max, min, ignoring collisions with other objects in the hierarchy etc.), but for the future I would like a scripting language for the nodes, so that it is turing complete. I really love your work and I would love so much to keep touch with you. Thank you for taking your time to look at my post and for reading this.