Gemini Canvas demo shows parameterized 3D design with STL export

Google demonstrated a Gemini Canvas workflow where an app built inside Canvas lets users adjust mathematical parameters of a 3D object such as a vase, view it in 3D and export the geometry as an STL file. It is not built-in CAD: the export is implemented by the app itself.

• A Canvas app generates and renders parameterized 3D geometry
• Users change mathematical parameters and see the form update live
• STL export is handled by the app, not natively by Gemini
• Best suited to repeatable object families, not complex engineering assemblies