feat(content): bake and read flat collision assets
Append strict collision/topology payloads to the existing prepared package so later physics cutover can drop parsed DAT graphs without adding a second mapping or changing traversal behavior. The full 2,232,170-key catalog is deterministic across worker counts, exact-byte aliased, corruption-isolated, and cancellation-safe.
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Erik
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@ -1660,7 +1660,7 @@ port in any phase — no separate listing here.
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> `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`. Slice H is complete:
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> retained UI/frame work, exact bounded light selection, and
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> pooled/borrowed/direct network I/O pass 8,292 Release tests / 5 skips and the
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> connected lifecycle/reconnect gate. Slice I is active at I3 from
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> connected lifecycle/reconnect gate. Slice I is active at I4 from
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> [its detailed plan](2026-07-25-modern-runtime-slice-i.md).
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**Spec:** `docs/superpowers/specs/2026-07-05-modern-pipeline-design.md` (the
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@ -1685,11 +1685,11 @@ hitch and follows.
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| MP1a | `AcDream.Content` extraction (GL-free MeshExtractor + boundary records out of App) | ✅ SHIPPED 2026-07-05 — user-gated (renders identical, zero tripwires, perf-neutral); 8 commits `651d041e`..`b0758d77` |
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| MP1b | Pak format + `acdream-bake` CLI + mmap `PakReader` + equivalence/full-scale gate | ✅ **SHIPPED 2026-07-24** — 729,888 EnvCell keys → 17,117 unique geometries + 712,771 aliases (42.6×), 751,141 total keys / 38,370 physical blobs, zero failures, 28,192.4 MiB, 81.4 s validated atomic publish; full-DAT gate also corrected a real collision in WB's legacy geometry hash. [Report](../research/2026-07-24-slice-b-full-bake-report.md) |
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| **MP-Alloc (safe batch)** | Reuse per-frame buffers: anim pose, particle draw-list, interior partition, animatedIds/drawableCells sets | ✅ SHIPPED + USER-GATED 2026-07-05 — dense-town frame-time spikes 20–87ms → 6–10ms, alloc spikes (30–75MB single-frame) eliminated, gen2 GC 5–11/window → ~0; user confirms FPS steady. 4 commits `b8c05e2b`..`91afea24` |
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| MP-Alloc (hard sites) | EnvCell settled-camera rebuild gate + physics `Transition` reuse | 🟡 Physics half SHIPPED 2026-07-25 — retail-shaped reset-complete transition/query scratch is bit-identical and 0 B/resolve across five profiles; immutable flat collision storage is defined and package integration continues in Slice I3. |
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| MP-Alloc (hard sites) | EnvCell settled-camera rebuild gate + physics `Transition` reuse | 🟡 Physics half SHIPPED 2026-07-25 — retail-shaped reset-complete transition/query scratch is bit-identical and 0 B/resolve across five profiles; immutable flat collision storage and its complete deterministic prepared package are shipped; traversal differential work continues in Slice I4. |
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| MP1c | Streaming cutover to pak + hitch gate | ✅ **SHIPPED 2026-07-24** — typed package-only production source, explicit Setup probes, non-allocating Portal-first lookup, exact translucency metadata, and ordered teardown; capped/uncapped/dense physical routes + user visual gate pass. Uncapped CPU p99 7.825→6.496 ms, GPU p99 3.406→2.706 ms, portal frame max 202.9→39.9 MiB, process allocation −41.8%, zero invalid Setup probes. [Report](../research/2026-07-24-slice-c-prepared-asset-cutover-report.md) |
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| MP2 | Retail particle distance/cell-view degradation: DAT-authored range, exact infinite/finite off-view update branches, emitter-first render scan, user-requested 2× default range | ✅ SHIPPED 2026-07-17 — Aerlinthe hotspot `0x32000223` resolves to retail 64m and defaults to 128m; landscape/entity streaming distance unchanged |
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| MP3 | Arch ECS render world + delta submission (the 300-FPS lever) | ⚪ — note: does NOT fix the steady-state GC churn (that's MP-Alloc); MP3 is the draw-submission throughput lever |
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| MP4 | Zero-alloc frame loop + flat physics data (residual, post-MP-Alloc) | 🟡 ACTIVE — Slice I1 zero-allocation transition scratch and I2 immutable flat collision schema shipped; I3 package serialization/bake is active. |
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| MP4 | Zero-alloc frame loop + flat physics data (residual, post-MP-Alloc) | 🟡 ACTIVE — Slice I1 zero-allocation transition scratch, I2 immutable schema, and I3 complete deterministic collision package shipped; I4 flat traversal shadow implementation is active. |
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| MP5 | Job-system parallelism | ⚪ stretch, evidence-gated |
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---
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@ -123,9 +123,13 @@ deterministic immutable physics/containment BSP, polygon, Setup, bounds, and
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EnvCell-topology records without cutting traversal over. Synthetic corruption
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gates and representative installed-DAT source identity pass bit-for-bit. The
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complete I2 Release gate is 3,826 App tests / 3 skips and 8,355 solution tests
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/ 5 skips.
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/ 5 skips. I3 appends four collision package types and a separate typed
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prepared-collision interface over the existing single mmap. Two complete
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29,908,271,024-byte bakes contain 2,232,170 keys with zero failures and the
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same SHA-256 across different worker counts; cancellation/corruption gates and
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8,371 solution tests / 5 skips pass.
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Slice H is complete: retained UI/frame work, exact bounded light selection,
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and pooled/borrowed/direct network I/O pass. Slice I is active at I3 under
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and pooled/borrowed/direct network I/O pass. Slice I is active at I4 under
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[`2026-07-25-modern-runtime-slice-i.md`](2026-07-25-modern-runtime-slice-i.md).
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The historical exact G4 visual rollback remains
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`git revert ef1d263337997bb030eadb7b8e71d73dc659907a`.
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@ -2,8 +2,8 @@
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**Date:** 2026-07-24
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**Status:** Slices A–H and I0–I2 are complete. Slices F–L were explicitly
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approved 2026-07-24; Slice I3 is active.
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**Status:** Slices A–H and I0–I3 are complete. Slices F–L were explicitly
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approved 2026-07-24; Slice I4 is active.
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**Scope:** Reconcile and sequence the existing Modern Pipeline (`MP`) and
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Linux/headless (`LH`) tracks using the 2026-07-24 connected performance audit.
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@ -1200,8 +1200,10 @@ grounded walkable-publication profiles each measure 0 B/resolve, while
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fresh-vs-reused output and body state remain bit-identical. I2 now supplies
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validated immutable flat collision records: synthetic and installed-DAT
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source identity, exact float bits, deterministic pre-order, and corruption
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tripwires pass without changing production traversal. I3 package
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serialization and complete-catalog baking are the current execution point.
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tripwires pass without changing production traversal. I3 now packages all
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flat collision/topology records through a shared typed mmap source: two
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complete 2,232,170-key bakes are byte-identical with zero failures. I4 flat
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traversal shadow implementation is the current execution point.
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Evidence:
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[`../research/2026-07-25-slice-g5-production-profile.md`](../research/2026-07-25-slice-g5-production-profile.md)
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and
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@ -1209,6 +1211,8 @@ and
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and
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[`../research/2026-07-25-slice-i2-flat-collision-schema.md`](../research/2026-07-25-slice-i2-flat-collision-schema.md)
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and
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[`../research/2026-07-25-slice-i3-prepared-collision-package.md`](../research/2026-07-25-slice-i3-prepared-collision-package.md)
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and
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[`2026-07-25-modern-runtime-slice-i.md`](2026-07-25-modern-runtime-slice-i.md).
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The intended order is therefore:
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@ -1222,7 +1226,7 @@ honest metrics + committed baselines (A — exit criteria block C)
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-> incremental render scene (F)
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-> delta GPU submission (G)
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-> residual frame cleanup (H-a, H-b, H-c)
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-> flat collision assets (I — CURRENT at I3)
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-> flat collision assets (I — CURRENT at I4)
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-> presentation-independent runtime (J — §0.3 authorization)
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-> Linux/headless/multi-session (K)
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-> evidence-gated GPU jobs (L)
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@ -1,7 +1,8 @@
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# Modern runtime Slice I — flat collision assets and zero-allocation physics
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**Status:** I0–I2 COMPLETE — retail oracle, zero-allocation transition
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scratch, and deterministic immutable collision records fixed; I3 active
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**Status:** I0–I3 COMPLETE — retail oracle, zero-allocation transition
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scratch, deterministic immutable collision records, and complete prepared
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package fixed; I4 active
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**Parent:** `2026-07-24-modern-runtime-architecture.md`, Slice I
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**Purpose:** remove parsed DAT object graphs and steady collision allocations
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without changing one retail collision decision, float, comparison, or traversal
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@ -176,7 +177,12 @@ Evidence:
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Gate: two independent bakes are byte-identical; every collision key required
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by the canonical route is present; a failed/cancelled bake cannot replace the
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last good pak.
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last good pak. **PASSED 2026-07-25:** two complete 29,908,271,024-byte bakes
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with different worker counts produced the same SHA-256 and 2,232,170 typed
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keys with zero failures. Strict serialization/corruption/cancellation gates,
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representative installed-package reads, Release build, and 8,371 solution
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tests / 5 skips pass. Production traversal remains graph-only. Evidence:
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[`../research/2026-07-25-slice-i3-prepared-collision-package.md`](../research/2026-07-25-slice-i3-prepared-collision-package.md).
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### I4 — flat traversal shadow implementation
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