WorldStream: Streaming Interactive 3D Worlds with Hierarchical Planning and Persistent State

Key points

• A hierarchical planner over a typed decision model emits structured decision state: Macro fixes settlement, ecology, transport, and hydrological structure across a group of tiles; Micro specializes that contract into tile semantics under measured terrain and accepted neighbor commitments.1
• Deterministic local code compiles accepted plans into terrain, roads, settlements, vegetation, and entities.1
• Streaming separates their reach: plans run ahead along the predicted corridor, compilation only where movement will soon need it, geometry behind the user released.1
• The same record grounds interaction: the model acts on existing entities, including stateful NPCs that update as they act, edits the present region, or attaches intent to unplanned regions.1

Sources (2)

• [1]WorldStream: Streaming Interactive 3D Worlds with Hierarchical Planning and Persistent State
  Hugging Face Daily Papers · Oct 20, 12:00 AM

  We present WorldStream, an open-ended 3D world model with three simultaneous capabilities: it extends playable terrain beyond any pre-specified map, acts on open-ended language in the running world, and restores visited places with their edits.

  A hierarchical planner over a typed decision model emits structured decision state: Macro fixes settlement, ecology, transport, and hydrological structure across a group of tiles; Micro specializes that contract into tile semantics under measured terrain and accepted neighbor commitments.

• [2]WorldStream: Streaming Interactive 3D Worlds with Hierarchical Planning and Persistent State
  arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 20, 06:47 PM · same content

Extractive summary: sentences quoted from the sources.