350 lines
26 KiB
Markdown
350 lines
26 KiB
Markdown
# Manifold UI — Agent Onboarding
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> **Purpose of this doc:** everything an agent needs to make a tweak or fix to the Manifold
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> front-end without re-grepping the tree. Read this + the relevant section's source files; you
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> should not need to read the 40KB design specs for routine work (they're pointers at the end).
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>
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> **Voice:** ground-truth map. If something here contradicts the code, the code wins — fix this doc
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> in the same commit.
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---
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## 1. What Manifold is
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A **convertible-mode React front-end** on the real, parity-tested NISPS ML+audio engine (same
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`nisps/` C++ core that the firmware and the `playground/` use, compiled to WASM). It lets you drive
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a neural net's mapping from a small input space (XY pad / gamepad / MIDI) to many outputs, shape
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that mapping with interactive ML feedback ("explore & place" / dislike), and route the outputs to
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several backends (built-in synth, MIDI, OSC, particles, VCV, MEMLNaut hardware).
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- **Stack:** Vite + React 18 + TypeScript (strict). No CSS-in-JS — design-token CSS variables.
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- **Lives at:** `manifold/` (beside `playground/`). Deploys to **https://meml.lnfinitemonkeys.org/next/**.
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- **Synth is labelled "Powerful Synth Engine" / "Built-in Synth" — NEVER "C15".** British spelling.
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---
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## 2. Run / build / deploy / test
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```bash
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cd manifold
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bun install
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bun run dev # Vite dev server, port 5273 (COOP/COEP headers set)
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bun run typecheck # tsc --noEmit ← run before every commit
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bun run build # tsc --noEmit && vite build → dist/
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bun run preview # serve dist/ on :4273 (honours COOP/COEP — needed by WASM/worklet)
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bun run test:e2e # Playwright smoke (needs `bun run build` first; runs against preview)
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```
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- **Typecheck is the cheap gate.** It catches most regressions; run it after any edit.
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- **E2E on the VPS** needs a non-snap node runner (bun is snap-confined and hides libs from
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Chromium): `PLAYWRIGHT_BROWSERS_PATH=/home/w1n5t0n/snap/bun-js/87/.cache/ms-playwright node node_modules/.bin/playwright test`. Preview via bun is fine. The smoke spec (`tests/e2e/smoke.spec.ts`)
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asserts: engine WASM loads, spine invariant (setInputs → outputs change), feedback runs, console
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renders, **no "C15" in the bundle**, no console errors.
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- **Deploy is automatic on push to GitHub `main`, but gated on CI** → webhook → waits for the
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`CI` workflow to conclude `success` on that exact SHA → builds `manifold/` → rsyncs to the live
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`/next/` subdir. A red or missing CI run aborts the deploy (fail-closed, 20 min timeout);
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`MEML_SKIP_CI_GATE=1` bypasses it for an emergency hand-deploy. The gate lives VPS-side in
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`~/.config/webhooks/meml-deploy.sh` (not in this repo) — added 2026-07-21 per the simplification
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audit. See the `manifold-deploy-pipeline` memory for the full chain and gotchas (the
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`cp index.html a-immersive.html` 403 workaround; git-ignored `bun.lock`).
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- **`manifold/public/nisps.{js,wasm}` are tracked artifacts that ship to production** — the webhook
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builds only `manifold/`, so vite copies whatever is committed. CI's *WASM freshness gate* runs
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the parity harness against the committed artifact before rebuilding it, so a stale commit fails
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loudly. Rebuild with `scripts/build-wasm.sh` and commit it whenever `nisps/` changes.
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- **`?debug=1`** installs `window.__nisps` (synchronous probe for Playwright/console — see
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`src/debug/probe.ts`). **`base: './'`** in `vite.config.ts` keeps asset URLs relative so one
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`dist/` mounts at both `/` and `/next/`. **WASM URLs must resolve via `document.baseURI`**, never
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hardcoded (see the assetUrl gotcha in §6).
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---
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## 3. The big picture — three layers
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```
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┌─────────────────────────────────────────────────────────────────┐
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│ UI layer (React) src/console/ src/dock/ src/primitives/
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│ ConsoleApp = spine of the UI: holds state, picks a Stage, │
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│ renders the Dock. "Convertible" = swappable Stages. │
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└───────────────┬─────────────────────────────────────────────────-┘
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│ reads engine.version (useSyncExternalStore), reads buffers imperatively
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│ writes via engine.setInput / setParam / feedback.*
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┌───────────────▼─────────────────────────────────────────────────┐
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│ Engine layer (NO React) src/engine/ src/inputs/ src/feedback/ src/backends/
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│ Spine = reactive store below React. Per-frame ML inference is │
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│ eager + synchronous, OFF the render cycle. React only watches │
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│ a monotonic version counter. │
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└───────────────┬─────────────────────────────────────────────────┘
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│ C ABI
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┌───────────────▼─────────────────────────────────────────────────┐
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│ WASM (nisps.wasm) — built from the C++ nisps/ core │
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│ Loaded TWICE: main thread (ML inference + training + feedback) │
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│ and AudioWorklet (audio DSP, separate instance). │
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└──────────────────────────────────────────────────────────────────┘
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```
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**Golden rule of the reactivity model:** components subscribe to `engine.version()` via
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`useEngineVersion()` and then read live `Float32Array`s **imperatively** (`engine.getOutputs()`,
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`engine.routedOutput()`). They do **not** get outputs as React state — that was a deliberate perf
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decision. Buffers are reused frame-to-frame; never assume a fresh array.
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---
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## 4. UI layer (where most tweaks happen)
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### Entry & composition
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- `src/App.tsx` → mounts `<EngineProvider>` (async WASM load, shows `Loading`) → `<ConsoleApp focus="composite" />`. Installs the `?debug=1` probe once the engine is live.
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- `src/console/ConsoleApp.tsx` (**~1040 lines — the UI spine**). Holds nearly all UI state:
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`focus`, `modeId`, `params` (`MFParam[]`), `pos` (2D input), feedback state
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(`feedbackMode`/`soloMode`/`exploring`/`picking`/`anchorCount`), output config
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(`outputMode`/`midiOutputId`/`oscUrl`/`vcvUrl`), and UI flags (`sandwich`, `split`, `stripPinned`,
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`snapshots`, `markers`, `health`, `rev`). Builds the flat `ConsoleCtx` passed to the Dock + drawers.
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### The Stages (one renders at a time)
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**There is no `focus` axis any more.** The focus/altitude system (`AltitudeNav`, `SplitStage`,
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`ReadoutStrip`, `InputMini`, `CompactAxis`) was deleted in the 2026-07 simplification audit —
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Manifold ships a single "composite" altitude. Selection is now a plain three-way in `ConsoleApp`:
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`sandwich` wins, else `outputMode==='particles'`, else CompositeStage.
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| Stage | File | Renders when | What it is |
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|---|---|---|---|
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| CompositeStage | `CompositeStage.tsx` | **default / hero** | Draggable split-ratio; magnet-snaps to 0.14/0.33/0.5/0.66/0.86; collapses a side to a corner minimap at extremes. |
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| SandwichStage | `SandwichStage.tsx` | `sandwich===true` (wins over the others) | Three-pane layout: `Manifold` input surface left, 3D parameter-landscape centre (input → MLP heatmap grid → outputs, drag to orbit), compact `OutputStage` right. |
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| ParticleStage | `ParticleStage.tsx` | `outputMode==='particles'` | Flow-field visualiser (`flow-field.ts`, 400-particle Canvas2D port) + macro-axis bar + corner joystick. |
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`Manifold.tsx` and `OutputStage.tsx` are no longer top-level stages — they are panes composed by
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CompositeStage/SandwichStage. `Manifold.tsx` is the full-bleed 2D input surface (canvas trail + pins
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+ feedback markers; pointer → `onMove`; **double-click the input mark → follow-mouse mode**, a window
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`pointermove` listener mapping the whole viewport onto this surface's space, Esc or a second
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double-click exits). `OutputStage.tsx` is the output columns; drag a bar to set value, and it takes a
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`compact` prop for the narrow pane.
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- **Output modes** (the TOP dock selector, NOT the same axis as `focus`): `src/console/output-mode.ts`
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defines `OUTPUT_MODES` = **particles** (default) / midi / osc / cv / synth / editor, each mapping to a
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`BackendId`. `DEFAULT_OUTPUT_MODE='particles'`. `outputDisplayCount()` is the shared presentation
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boundary for the stage and routing rows: MIDI uses its configured CC count, while backends without
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a separate count present the full mode parameter set. The condensed Outputs panel reports this as an
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`N outputs` chip. This does not reshape the MLP or clear examples.
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- `src/console/output-mode.ts`, `types.ts`, `model.ts` are the shared vocabulary — read these first
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when touching anything cross-cutting:
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- `types.ts`: `Focus`, `OutputMode`, `DrawerKey`, `DrawerDepth`, `FeedbackModeUI`, `SoloMode`,
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`Pin`, `FeedbackMarker`, `Snapshot`, and **`ConsoleCtx`** (the flat context handed to the dock).
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- `model.ts`: the instrument catalogue `MF_MODES`, `MFParam`, `ParamStatus`
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(`off|fixed|live`), `ParamGroup`, plus `shapeValues()` (applies min/max/curve to raw engine
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outputs) and `modeEngineId()`. (`seededGradient()` is GONE — it was the fabricated
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gradient-health source, deleted in the 2026-07 sweep, S16.) **Schema-backed modes are DERIVED from the codegen
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schemas in `src/modes/generated/`** (one-core-engine P5.2) — real param names/groups/count,
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plus each mode's `ml` net shape (`MFMode.ml`) and schema `engine_id` (`MFMode.engineId`)
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come from schema truth. A thin manifold OVERLAY (`SCHEMA_MODES` in model.ts) supplies only
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label/glyph/ModeClass/input/ordering. Two schema-less manifold-only modes (`visualizer`,
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`c15` placeholder) stay hand-written on `DEFAULT_MODE_ML`. Do NOT hand-edit
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`src/modes/generated/` — it is codegen output (`bun run codegen/generate.ts`).
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### The Dock (right-edge rail) — `src/console/Dock.tsx` + `Drawers.tsx`
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- 48px right rail: **TOP** = mode selector (the 5 output modes, popover); **MIDDLE** = 5 drawer
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icons, vertically centred macOS-dock style; **BOTTOM** = sandwich toggle.
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- Five drawers (`DRAWERS` in `Drawers.tsx`, each has `.render(ctx, depth)` — condensed 360px panel
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vs expanded 80vw×80vh modal):
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- **learn** — feedback mode (explore-and-place / geometric-dislike) + solo mode + per-output arm.
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At `expanded` depth ONLY it also renders `TrainingHealth.tsx`: the real per-iteration loss
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curve (`EngineApi.lossHistory()` ← `nisps_ml_loss_history` ← `MLPCore::loss_history`) plus
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the per-layer weight-health table (`getLayerStats`). **`depth === 'expanded'` is Manifold's
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advanced-surface flag** — there is no separate feature-flag mechanism, so put advanced
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surface there rather than inventing one. The panel renders "no training run yet" when the
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core has no history; it never synthesises a curve.
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- **inputs** — enable/configure input sources (XY pad / MIDI / gamepad).
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- **route** (label "Outputs") — per-output control matrix + per-backend config.
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- **settings** — icon style (monochrome/colour), input-map shape (xy/joystick/rect/circular), corner radius.
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- **help** — keymap pills + loop explanation.
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- `src/dock/` holds the output-routing internals used by the `route` drawer:
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- `output-state.ts` — the per-output control model: `OutputControl` (state/muted/armed/min/max/
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curve/fixedValue + backend specs `MidiCcSpec`/`OscSpec`/`VcvSpec`), `toOutputControl()`,
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`buildArmMask()` (solo focus).
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- `OutputControlRow.tsx` — one output row: name · M(mute) · S(solo/arm) · off|fixed|live · dual-range
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· curve pad · live value. **Writes eagerly to the shared `MFParam` store via `onChange`.**
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- `OutputsBackendConfig.tsx` — preset bar (save/restore/rename/delete) + per-backend config (MIDI
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CC#/channel, OSC path/range, VCV polarity).
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### Primitives — `src/primitives/` (barrel: `index.ts`)
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Seven: `Button`, `Slider`, `PillToggle`, `Badge`, `Switch`, `XYPad`, `VirtualJoystick`. Dumb,
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reusable, no engine knowledge. Side-effect import of `styles/primitives.css` styles the range
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inputs. `Panel`/`StatusLine`/`ControlAxis`/`CurvePlot`/`Sparkline` were **deleted** in the 2026-07
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sweep (L22, zero consumers) — don't cite them.
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### Other shared UI files
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- `shared-ui.tsx` — `MiniMeters` (read-only output bars). `AltitudeNav`/`CompactAxis` were deleted with the focus system.
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- `icons.tsx` — monochrome inline-SVG icons (mode icons + drawer icons + `GLYPH_FALLBACK` for when monochrome is off).
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- `VerdictCluster.tsx` — floating bottom-centre feedback UI (perturb ▽ / undo ↺ / commit △ + A/B); labels adapt to feedback mode.
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- `CurvePad.tsx` — square canvas curve editor (vertical drag reshapes [0,1]; ~0.43 ≈ linear). Used in OutputEditor + OutputControlRow.
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- `OutputEditor.tsx` — inline range/curve popup for a single output (hover/click on a bar), using
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`DualRange.tsx` for the shared dual-thumb min/max control.
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### Styling — `src/styles/`
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CSS-variable design tokens, no CSS-in-JS. `tokens.css` `@import`s `tokens/{base,colors,fonts,
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typography,spacing,effects}.css`. All vars on `:root`, consumed via `var(--name)`. Dark theme: deep
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black bg, warm-orange `--accent` (#ff6a00), cyan `--accent-2` (#00ccff). Corner radius is driven by
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a setting → `--r-*` tokens.
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---
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## 5. Engine / inputs / feedback / backends (touch when behaviour, not chrome, changes)
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### Engine — `src/engine/` (no React except the two binding files)
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- `spine.ts` — **the reactive store.** `setInput(x,y)`/`setInputs(arr)` drive raw input synchronously
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through `WasmIML.processInput` (WASM input chain) → `processInto()` → `WasmIML.processOutput` (WASM
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output chain) → backend, all off the render cycle, reusing buffers. Bumps a monotonic `version`.
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`reprocess()` re-ticks the last input after a weight change (stores the full N-D vector so extra axes
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survive). Pipeline config lives in `inputConfig_`/`outputConfig_` and is pushed C-side via
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`setInputConfig`/`setOutputConfig` (state itself lives in the WASM pipeline handle since P4).
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- `engine-api.ts` — **`EngineApi`, the framework-neutral facade** everything in the UI talks to:
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`setInput/setInputs`, `getOutputs/routedOutput`, training (`addExample/train/trainAsync/evalLoss`),
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weights (`getWeights/setWeights/process/randomise`), telemetry
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(`lossHistory/getLayerStats`), `subscribe/version/on`, plus nested `.feedback` and `.audio`
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facades. **`lossHistory()` reads SPINE STATE, not the MLP handle** — an async train runs on the
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worker's mirror net, so the main handle's own history is empty for those runs; both paths
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publish to the spine.
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- `EngineProvider.tsx` / `useEngine.ts` — the **only** React coupling. `useEngine()` returns the API
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(null until WASM ready); `useEngineVersion()` = `useSyncExternalStore(subscribe, version)`.
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- `engine-host.ts` — main-thread audio wiring: AudioContext (user-gesture gated), fetch `nisps.wasm`,
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register + feed the worklet.
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- `wasm-iml.ts` (**~750 lines**) — the ML interface to `nisps.wasm`: one MLP handle, dataset, heap
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buffers, feedback C-ABI bindings (`nisps_ml_feedback_*`), lazy training worker.
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- `wasm-worker.ts` — off-thread training worker; returns weights, final loss, and the real
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per-iteration loss curve read off its own mirror handle. `worklet/nisps-processor.ts` — the AudioWorklet's
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separate WASM instance (raw `WebAssembly.instantiate`, no Emscripten glue; 128-sample blocks).
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- **Input/output pipelines + curves live in the C++/WASM core (one-core-engine P4).** The input chain
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(invert → deadzone → circular clamp → momentum-modulated zoom → centred power → EMA → momentum) and
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output chain (global curve → per-output EMA → slew → freeze/mask) are `nisps/pipeline/*`, exposed via
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`nisps_input_*` / `nisps_output_*` and driven by thin `WasmIML` wrappers (`processInput`,
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`processOutput`, `setInputConfig`, `setOutputConfig`, `setOutputFreezeMask`, `reset*`). State lives
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C++-side per pipeline handle. First 2 axes get the full pad pipeline; axes 2+ feed raw to the spine.
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The old TS `input-pipeline.ts` / `output-pipeline.ts` / `curves.ts` are **deleted**; config TYPES are
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`pipeline-types.ts`, the curve NAME↔id contract is `curve-catalog.ts`, and the curve MATHS is sampled
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from the core via `EngineApi.curveApply` / `curveApplyBatch`.
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- `dataset.ts` — JS-side example store + sample-weight modes (uniform/recency/spatial/combined).
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`sink.ts` — `EngineSink` framework boundary. `types.ts` — C-ABI surface types.
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- `exploration.ts` — `ExplorationController` adapter for the Jolt press + OU explore gestures
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(Learning drawer). **As of one-core-engine P3 the maths lives in the shared C++/WASM core** — this
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class is a thin driver that owns only the control-rate timers and calls `engine.explore.*`
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(`joltPress`/`joltStep`/`joltRelease`/`joltActive` → `nisps_ml_jolt_*`; `setExploreIntensity`/
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`exploreApply` → `nisps_ml_explore_*`). The held ~200 Hz driver calls `joltStep()` + `process()`;
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the OU walk is the spine's inert-by-default `setOutputMorph` hook, now `exploreApply(routed)` (copy
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into the WASM heap → advance+add in the core → copy back). The interim `jolt.ts` / `ou-explore.ts`
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TS ports were deleted with the swap.
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### Inputs — `src/inputs/`
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- `input-layer.ts` — composition hub. One rAF loop polls sources, pulls all axes into a vector,
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forwards N→engine. **`MAX_AXES = 32`** (WASM net over-provisioned to 32 inputs). **Dedicated
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dimensions, NO mean-blending** — each active axis drives its own engine slot 1:1; unused slots
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zero-padded (inert). Changing axis count requires a **net reset** (UI confirm modal).
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- `base-source.ts` + sources: `xy-pad-source.ts` (push, 2 axes), `gamepad-source.ts` (single=2 /
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double=4 axes, deadzone 0.08), `midi-input-source.ts` (Web MIDI, batch CC-learn, multi-port).
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- `useInputLayer.ts` — React binding; manages exclusive input mode + gamepad stick mode + MIDI
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device/learn map; exposes `pushPad`, `sources`, `channelLayout`, etc.
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- **Reshape (P2.3, live):** the net is now **runtime-shaped**. It boots at the default
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over-provisioned 32-input head (zero-padding preserved), and `EngineApi.reshape({ inputSize, … })`
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→ `WasmIML.reshape` swaps in a new net at the requested arity, **warm-started** from the overlapping
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weights (`nisps_ml_reshape`; C-side dataset + feedback state RESET). When the active axis layout
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CHANGES to a count ≠ the net's arity, `ConsoleApp` offers the swap behind `ReshapeModal.tsx`
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(reset-on-reshape confirm; declining keeps the zero-padded head). Never offered on load. The
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spine tolerates the arity change (buffers resize, version bumps); the training worker
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(`wasm-worker.ts`) carries the current dims in its train message and re-creates its mirror net to
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match. Debug: `window.__nisps.reshape(nIn)` / `.describe()`. See the `manifold-mixed-inputs` memory
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for the locked design (adaptive slider viz when >2 dims is still pending).
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- **Per-mode net dims (P5.3):** switching INSTRUMENT mode reshapes the net to that mode's schema
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`ml` config (`MFMode.ml` — input/hidden/output + legacy spread) via a `ConsoleApp` effect keyed on
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`[engine, modeId]`. No confirm modal (switching instrument is deliberate); the axis-count
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`ReshapeModal` above is for input-LAYOUT changes only. The effect depends on `engine`, so on boot
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it fires once WASM is ready and lands the boot mode's dims (**paf_synth → 4→[10,10,14]→33**, weights
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809 — NOT the 32→126 default). The reshape-offer effect reads the engine's CURRENT `inputSize`
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live, so a mode switch that changes arity doesn't spuriously prompt (its baseline tracks axis
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COUNT, unchanged by a pure dim change). Non-schema modes restore `DEFAULT_MODE_ML` (32→126).
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Debug seam for tests: under `?debug=1` ConsoleApp installs `window.__mf`
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(`setMode`/`getModeId`/`paramCount`/`modeIds`) — the UI-level analogue of `__nisps`, since no
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in-UI instrument picker exists yet (`ctx.modes`/`setModeId` are plumbed but unrendered).
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Manifold passes `spread=0` for boot, mode-switch reshapes, direct re-rolls, explore-and-place
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scratchpad rolls, and VCV-forwarded randomise gestures by default. Settings → Experimental
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features → **Xavier / spread randomisation** restores the schema spread and reveals the centred
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regime switch in the expanded Learning drawer.
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### Feedback — `src/feedback/`
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- `controller.ts` — `FeedbackController`, framework-neutral, owned by ConsoleApp. **As of one-core-
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engine P3 it holds NO algorithm approximation** — a thin driver over the shared C++ core. Two modes:
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**geometric-dislike** (default, Mode 1, "Push away") — `dislike()` calls `engine.feedback.
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dislikeGeometric(heardVec)` (the k-NN centroid push-away in `nisps/ml/geo_push.hpp`; returns
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FeedbackAction 14=push / 15=cold-start) then `process()`; `like()` runs the core's `thumbsUp`
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(auto-stores the positive centroid in Avoid+Geometric) + `addExample` + `train`. **explore-and-
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place** (Mode 2, positive-only) drives the core's snapshot/scratchpad/undo lifecycle; caller
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accumulates anchors and trains on finalise with warm-start. Solo/arm via per-output mask.
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- **The heard-vector rule:** the geometric dislike trains AWAY from the HEARD (post-pipeline, routed)
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output — pass `engine.routedOutput()`, never the raw MLP output, or the cold-start MSE derivative is
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zero (inert). The `EngineApi.feedback.thumbsDown` facade + the Mode-1 `dislike()` call site honour this.
|
||
- **Cold-start prompt:** a dislike with zero positives returns action 15 → ConsoleApp shows a one-time
|
||
"Like a few sounds first…" banner (dismissed on the next like or the dismiss button; rl-feedback §7).
|
||
- The interim `rng.ts` (`SeededRng`) and the `C++ GAP` approximation markers are **gone** — the seeded
|
||
RNG, geometric push, jolt, and OU all run in the core now.
|
||
|
||
### Backends — `src/backends/`
|
||
- `manager.ts` — `BackendManager`, the **single consumer of the engine spine** for output: subscribes,
|
||
reads `routedOutput()` each version bump, calls `active.send(routed)`. Gates audio (mutes synth when
|
||
a non-synth backend is active).
|
||
- Registered: `midi` (`midi-backend.ts`, CC out, ~20Hz throttle), `osc` (`osc-client.ts` → WebSocket
|
||
to the Deno bridge in `osc-bridge/bridge.ts`), `synth`/`cvgate` (`passthrough-backend.ts`),
|
||
`particles` (`particle-backend.ts`, no-op — the visualiser is a separate `flow-field.ts` consumer),
|
||
`vcv` (`vcv-backend.ts`, bidirectional). `mapping.ts`, `presets.ts`, `useBackendManager.ts` support
|
||
config. `backend.ts` defines the `OutputBackend` interface + `OutputMapping`.
|
||
|
||
### Misc
|
||
- `src/serial/memlnaut-serial.ts` — **STUB** Web Serial scaffold for the MEMLNaut Editor mode (protocol TODO). `EditorPanel.tsx` is its UI.
|
||
- `src/settings/settings-store.ts` — localStorage settings (`mf-settings`): icon style, input-map
|
||
shape, corner radius, and the opt-in legacy Xavier/spread feature flag.
|
||
- `src/midi-devices/` — codegen'd external-synth device templates.
|
||
- `src/debug/probe.ts` — `window.__nisps` synchronous probe (engine/audio/bus). Some playground
|
||
feature-store methods are present-but-inert (not ported yet) to keep the surface stable.
|
||
|
||
---
|
||
|
||
## 6. Gotchas & non-obvious rules
|
||
|
||
1. **Outputs are read imperatively, not via React state.** Subscribe to `version`, then call
|
||
`getOutputs()`/`routedOutput()`. Buffers are reused — copy if you need to retain.
|
||
2. **Asset URLs must resolve against `document.baseURI`, not `location.origin`.** `base: './'` +
|
||
the `/next/` subpath mean a hardcoded `/nisps.wasm` 404s. The `assetUrl()` helper (in
|
||
`engine-host.ts`, `wasm-iml.ts`, `wasm-worker.ts`) handles this — use it.
|
||
3. **`nisps.js` is non-module Emscripten glue (no ES exports).** Workers/worklet fetch + indirect-eval
|
||
to install the global `createNispsModule`; the worklet uses raw `WebAssembly.instantiate`.
|
||
4. **WASM MLP is runtime-shaped (since one-core-engine P2).** `nisps_ml_create(in, out, hidden[])`
|
||
honours its dims (non-positive/null → the default `32→[10,14,18]→126` head, so pre-P2 callers are
|
||
bit-identical), and `nisps_ml_reshape` swaps in a warm-started net at new dims. Weights = 3148 at
|
||
the default shape; reshaping only the input arity shifts the first layer (e.g. →4 inputs = 2868).
|
||
The firmware MLP stays compile-time templated — only the WASM/browser build is dynamic.
|
||
5. **Curves + input/output pipelines are C++/WASM only (one-core-engine P4).** No TS curve/pipeline
|
||
maths remains; the browser samples `nisps/core/math.hpp` + `nisps/pipeline/*` via the WASM. The
|
||
golden test (`tests/pipeline-golden.test.ts`) drives the WASM chains against the frozen fixtures.
|
||
NOTE: `exp/log/sigmoid/cubic` deliberately changed to the firmware-exact maths at P4 (see
|
||
`tests/fixtures/README.md`); `linear/square/sqrt/centered_power` are unchanged. The 3 momentum input
|
||
configs carry a wide (`1e-2`) tolerance — proven-inherent f32 drift, documented in the test header.
|
||
6. **COOP/COEP headers are mandatory** for the WASM/worklet path — set in `vite.config.ts` for
|
||
dev+preview, and at nginx server scope in prod (inherited by `/next/`).
|
||
7. **Never emit "C15"** in code or bundle — the smoke test fails on it. Synth is "Powerful Synth
|
||
Engine"/"Built-in Synth".
|
||
8. **Two `MFParam` writers** (stage controls AND dock rows) share one store — edits in either re-render both.
|
||
|
||
---
|
||
|
||
## 7. Deeper references (only when this doc isn't enough)
|
||
|
||
All in `docs/specs/` (at the repo root, not under `manifold/`), with subdirectories:
|
||
- `plans/BUILD-PLAN.md` — locked decisions + the 12-step build sequence + spec pointers (the resume anchor).
|
||
- `engine-architecture.md` — full engine/spine/WASM design.
|
||
- `dock-spec.md` — dock + drawers spec. `inputs-spec.md` — mixed-input design. `backends-spec.md` — backends.
|
||
- `docs/adr/rl-feedback-design.md` + `plans/feedback-modes-port-spec.md` (executed) + `recon/findings-feedback-behaviour.md` — feedback modes (Mode 1/Mode 2).
|
||
- `_archive/aimmersive-clone-spec.md` / `recon/playground-2026.md` — the a-immersive feature parity target (archived reference).
|
||
- `src/backends/README.md` — backend wiring notes.
|
||
|
||
**Memories** (auto-loaded): `manifold-build` (status + locked decisions), `manifold-mixed-inputs`
|
||
(N-D input design), `manifold-deploy-pipeline` (the auto-deploy chain), `single-double-joystick-toggle`.
|
||
|
||
---
|
||
|
||
*Keep this in sync with the code — update it in the same commit as any change to UI structure, the
|
||
engine spine, the dock/drawers, or the build/deploy commands.*
|