An ocean, with a world underneath.
Reefs, kelp forests, and a very good reason to open another tab.

Matt Shumer shared an Unreal Engine experiment in which Astra-powered characters work together to survive. His longer review explains the coordination setup and use of existing assets, including MetaHuman characters.
Communication between the inhabitants was part of what he had requested. The appeal is still easy to understand: create a setting, give its inhabitants goals, and see what happens.
Creator report with an accompanying review. We haven’t recreated the simulation. The Reddit thread reshares this experiment; it is not an additional reproduction.
Reefs, kelp forests, and a very good reason to open another tab.
A real-estate rendering experiment, with the prompt included.
One creator’s account of Astra inside Final Cut Pro and Affinity Photo.