yume-create-scene

One-command text-to-3D-world pipeline. From a prose scene pitch, produces a runnable Yume scene end-to-end — hero reference → hero-conditioned orthographic → semantic + heightmap → extract → map (compose_world) → presentation shell (compose_shell) → optional Tripo assets. The catalog is the single LLM-authored input; tools.visual_layout.compose_scene drives the rest deterministically. Invoke when the user wants a…