AI Director
The Director converts intent into bounded, structured scene-tool calls and streams progress over a strict SSE decoder.
Built for accountable production
Describe a world. Direct the whole scene.
Yugma Studio turns natural-language direction into structured Three.js scenes with real assets, editable hierarchy, materials, lighting, collaboration, and OpenUSD-aware workflows.
Repository-backed product facts · reviewed 26 August 2026
Architecture and value
Compose a scene as named objects and revisions rather than receiving one opaque mesh, then keep directing it in the browser.
Revisioned scene graph
A revisioned scene graph stores objects, transforms, materials, groups, lights, cameras, and provenance.
Three.js viewport
Three.js renders and edits the durable graph while virtualized lists and recovery boundaries contain large-scene failure.
Compare operating models
Expand the matrix. Choose by boundary and workflow, not slogans.
Yugma Studio ↔ Spline · current product terms should be verified before purchase
| This system | Alternative · Spline | |
|---|---|---|
| Primary job | Prompt-to-scene composition plus continued structured direction | Collaborative browser 3D design and interactive experiences |
| Deployment boundary | Browser studio with Firebase persistence and provider-backed Director | Managed browser design platform |
| Evidence model | Revisioned owner-scoped scene graph and explicit tool mutations | Collaborative design history; verify current version/export details |
| Operator control | Named objects, hierarchy, materials, lights, groups, and exports | Visual editor, interactions, collaboration, and publishing |
| Integration surface | Browser editor, scene API, MCP, exports | Browser editor, collaboration, embeds, exports |
Technical invariants
Revision safety
Every save advances a revision; stale writes cannot silently replace newer scene state.
Every save advances a revision; stale writes cannot silently replace newer scene state.
Owner isolation
Projects, offline queues, assets, and revisions are isolated by owner.
Projects, offline queues, assets, and revisions are isolated by owner.
Strict streaming
The SSE decoder accepts only complete, typed events and rejects malformed tool payloads.
The SSE decoder accepts only complete, typed events and rejects malformed tool payloads.
State-preserving recovery
A panel or route failure is isolated without discarding the last durable scene revision.
A panel or route failure is isolated without discarding the last durable scene revision.
Transparent access
Free
€0 / month
Start with core scene composition and clean exports.
Premium
€19 / month
Higher AI, project, and storage limits for serious creators.
Ultimate
€99 / month
Maximum limits and priority compute under the published plan.
Current status. The browser studio, Director, scene persistence, exports, and published plans are product surfaces; individual model and asset availability remains provider-dependent.
Frequently asked questions
What is the safest way to evaluate it?
Start with the architecture, reproduce the documented workflow, and verify the boundary against your own threat model.
Does the comparison include live third-party pricing?
No. Mutable vendor pricing is deliberately excluded. Verify current vendor terms before a purchase decision.
Where are limitations documented?
The status note, architecture page, and engineering articles state the current boundary and failure behaviour.