Oh government, please stop me from building all these railroads. Trains are such a new technology and there's no telling what supplies other railroad companies will be willing to transport coast-to-coast. Please, governments of the world, stop us!
I saw all the 3D models that Astra was making in Blender and wanted to see how far it could take photorealism given a full-fat iPhone 17 Pro video stream (LiDAR/ARKit/gps/accel/etc)
It trained a 3D Gaussian splat reconstruction and wrote a custom way to render them in Blender.