I’m still working on gravity, adjusting some velocities, masses, distances and timescale to get realistic behaviors. Here you can see how it’s running in real-time in Unity. There is a little frame drop due to video recording but the output is still OK. My graphic card is a Nvidia GTX 590 with 1024 CUDA cores.
Have you ever tried to instantiate thousands of animated skinned meshes in a Unity Scene? Even with GPU Skinning enabled (quite obscure feature in Unity) and baked skinned meshes (thanks to MeshBaker but it does not support many skin animations), the Animation Class on every instance is consuming all your CPU resources.
UIToolKit is was a set of lite UI components for Unity. It helps you to design your interface directly in the editor by simply dropping components on your scene, add some easy scripts to interact with them and customize them with your own styles and images.