The idea, and the build.
I began with reference images of Mumbai’s Bandra–Worli Sea Link and asked GPT‑6 Astra to create an interactive 3D experience that could be explored using drone-style camera controls. After reviewing the initial result, I refined it through several focused iterations—bringing the camera closer to the bridge, sharpening the Mumbai skyline, improving the day and night environments, adding moving traffic and fishing boats, and correcting visual issues such as flashing bridge geometry and vehicles disappearing at close range.
Where Astra came in.
The entire output was generated using Astra end to end
Explore the creator’s process and try the result for yourself.