Blender camera culling with geometry nodes

When you scatter objects over a surface using geometry nodes (distribute points + instances on points), you often get way too many objects than really needed, because most of them will lie outside the camera view. In this tutorial I'm showing how to achieve camera culling, this is limiting the object distribution only in the viewable area of the scene. Download the nodes setup: https://drive.google.com/file/d/1jpTuKFFSMPWaAwW1KuiPeLYitOsaXcm6/view?usp=sharing