README.md

---
title: World Memory Deck
emoji: 🧠
colorFrom: green
colorTo: indigo
sdk: static
app_file: index.html
pinned: false
license: mit
---

# World Memory — Presentation

A reveal.js slide deck for **World Memory: Consistent Long-Video Generation via
Knownness-Conditioned Diffusion Forcing** (working title, CoRL 2026).

The deck walks through the full pipeline:

- **Phase 1 — Offline caching:** posed video → persistent 3D `PointMemory` →
  reprojected `z_mem`, per-region `knownness k`, per-token 3D address `Xtok`,
  and a compact memory slot bank.
- **Phase 2 — Model:** a frozen Wan Video DiT with four small zero-init hooks
  (per-token noise from `k`, 3D positional encoding, geometry-keyed cross-attention
  with Rope3D, confidence-gated shortcut).
- **Phase 3 — Training:** anchor-mixture Diffusion Forcing — repair memory, never
  copy it; the target is always the real frame.
- **Phase 4 — Inference & rollout:** knownness sets a per-token start-noise level;
  known regions reuse-and-repair, unknown regions generate, and new frames are
  written back into the world memory for consistent revisits.

## View

Open the Space — `index.html` renders the deck directly. Navigate with arrow keys,
press <kbd>F</kbd> for fullscreen, <kbd>S</kbd> for speaker notes, <kbd>O</kbd> for
the slide overview, and <kbd>Esc</kbd> to zoom out.

Built with [reveal.js](https://revealjs.com) (loaded from CDN). The centerpiece
pipeline figure is a hand-authored inline SVG.