SILTAdesign
SILTAdesign helps architects turn their wildest ideas, from an underwater city to a house inside a cliff, into editable 3D designs by talking.
Core trick
Converts spoken architectural ideas into editable 3D models through an LLM-driven Blender scene builder with live shape and material edits.
Description
SILTAdesign helps architects turn their wildest ideas, from an underwater city to a house inside a cliff, into editable 3D designs by talking. As Astra builds, they can change the shapes or materials and watch their vision evolve.
README excerpt
# Astra hackathon context Planning and shared context for the September 8, 2026 Astra SF hackathon. The repository includes planning documents and the iPhone controller implementation. ## Phone controller - [iPhone controller and voice](iphone/README.md): motion controls, secure pairing, and Realtime voice service. The Excalidraw and Blender editors run separately and are not included in this upload. ## Two project concepts Both explore the same interaction: point at something, say “this,” and work with Astra to change a real editable design. - [Interactive 3D design partner](PROJECT_3D.md): use an iPhone to point into a native Blender scene, then discuss and make spatial design changes with Astra. - [Excalidraw design partner](PROJECT_EXCALIDRAW.md): use pointing and conversation to build and revise software architecture diagrams in a real Excalidraw canvas. The working direction has favored 3D for its visual demo potential, with Excalidraw as a simpler alternative. These briefs support the team’s decision; they do not require building both for the final demo. ## Event and execution - [Judges](JUDGES.md): supplied judge names and company affiliations. - [Event essentials](EVENT.md): exact judging criteria, rules, schedule, prizes and submission requirements. - [Participant guide](PARTICIPANT_GUIDE.md): supplied organizer source snapshot, with Wi-Fi credentials and navigation removed. - [Hackathon playbook](PLAYBOOK.md): reusable strategy and prioritization framewor