This is a Geometry Nodes setup designed to automatically delete points located outside the camera's field of view. The method relies on geometric calculations rather than raycasting, offering improved performance, though it will not cull points that are occluded by other objects within the frame.

The node group requires drivers for the camera's focal length and image ratio (width divided by height) to function correctly. A scale factor setting is included to adjust the culling margin outside the camera boundaries, which helps prevent instances from popping into view during animations.