In this blog post, the author discusses their interest in local multiplayer and 3D rendering, specifically raytracing. They present their idea for a new kind of screen sharing for local multiplayer games using the unique strengths of fully raytraced real-time rendering. The author also explores the history of split-screen and shared-screen gameplay, highlighting some interesting examples and innovative mechanics. They then delve into the technical background of rasterization limitations and the potential of raytracing to overcome them. Finally, they showcase a video demonstrating their implementation of the idea in a game called Sphere Spectacle. The author concludes by expressing their hope that someone will build a full game around this concept.
https://ph3at.github.io/posts/Ray-Coop-Camera/