LogInRemember the Tesseract from Christopher Nolan's Interstellar? The portals from the iconic game of the same name? With the latest Ray Portal BSDF node, you can easily recreate these effects in Blender.
Just a few days ago, a new Blender 4.2 node for Cycles was introduced, already considered a "game-changer" by many 3D artists online. It's very simple, yet opens up plenty of possibilities, replacing the classic parallax techniques and not only great for mapping images, windows, or portals, but also for creating fancy perspective shifts like black hole effects, lens simulations, and other production rendering tricks.
Essentially, the Ray Portal BSDF node transports rays that enter another location in the scene. It acts much like a Transparent BSDF: render passes are passed through, and it is affected by light path max transparent bounces.
If you want to learn more about this node, check out a video by a popular Blender creator CGMatter:
3D Artist Cartesian Caramel, the author of these mindblowing reality-warping cubes, has also made several videos on experimenting with the Ray Portal node, for example recreating the portals from the iconic platformer Portal:
And if you're interested in learning more about Blender's latest nodes, check out Cartesian Caramel's incredibly informative live streams:
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