Spatial intelligence 2026
Survey of world models and reconstruction for Urth, BVH, and Graph Views
This is the Fumadocs index for the 2026-09-21 survey. Canonical files live in the repo under docs/research/spatial-intelligence-2026/.
Scrollyteller: Open /urth-spatial
Stance
The world is not a video. Appearance may be generated. Metric shape lives in the BVH. Plans ride Graph Views and optional LeWM. Unobserved Urth stays unobserved.
Deep dives
| ID | File in repo | Stance |
|---|---|---|
| Index | docs/research/spatial-intelligence-2026/README.md | Candidate list |
| S1 | world-labs-marble-atlas.md | Apply language (dual export) |
| S2 / S8 | interactive-video-world-models.md | Priors only |
| S3 | feedforward-reconstruction.md | Apply pipeline adapters |
| S4 | scene-graphs-open-vocab.md | Apply hierarchy |
| S5 | large-scale-3dgs-lod.md | Appearance LOD twin |
| S6 | vjepa-and-lewm.md | Optional visual index |
| Synthesis | urth-applicability.md | Do / do not table |
| rUv two-way | ruv-parallels-and-gaps.md | Learn from / contribute to rUv |
| Storyboard | STORYBOARD.md | Scrolly beats |
Queue (as of the 2026-09-21 survey, not re-checked)
Residual: live BVH publish, spatial RPC, F9 promote, Urth E1/E2 OSM, panopticon, DiskANN defer, ADR-087.
New 2026: VGGT/MASt3R before COLMAP, SpatialLM as W1 proposer, scene-graph hierarchy, Octree-GS appearance LOD, V-JEPA visual index_id, Marble dual-export copy.
See also Urth vision and LeWM.