# DeepPluck V0.10.3 Rotary Depth and Undo Icon — Implementation Report

Date: 2026-09-01

Branch: `master`

Starting HEAD: `cd23329d707cf004bf9474544f401e3768dfc55d`

Implementation commit: `fb13ff5a3db847ce0981fe75df8190a9270456ab` — `DeepPluck V0.10.3 Rotary Depth and Undo Icon`

## 1. Outcome

The complete automatable V0.10.3 Definition of Done passed. Every rotary now has a visible but restrained dimensional body matching the supplied visual direction, and Random Undo now has its own curved return-arrow icon instead of incorrectly inheriting the Random dice.

The deliberately fixed 1536 x 900 editor geometry remains unchanged. No DSP, processor, parameter, preset, state, automation, Factory sound, plugin identity, voice, effects, or bus behavior changed.

## 2. Scope and implementation

`AGENTS.md` and the complete `Docs/Sound/DeepPluck_Sound_Manifest_v1.0.md` were read before implementation. The rendering remains consistent with the Manifest's calm, focused, restrained GUI direction.

`DeepPluckLookAndFeel::drawRotarySlider()` now draws, in bounded layers:

- a soft lower-right shadow;
- a raised dark outer rim;
- an inset radial-gradient face with light from the upper left;
- a darker lower-right falloff;
- fine outer and inner bevel rings;
- a narrow upper-left specular arc;
- the established Teal track/value arc and Amber pointer as unchanged foreground information.

The proportional construction works for every 64 x 64 rotary and the sole 112 x 112 Filter Cutoff exception. No bitmap, external asset, animation, cache, allocation, or new dependency was added.

The workflow icon mapping is now an explicit `WorkflowIconKind` enum. `random.undo` is matched before the general `random.*` rule and draws a compact curved return arrow with a rounded stroke and small left-facing head. Master Random and module Random controls retain the dice icon.

## 3. Automated GUI coverage and visual review

The GUI regression suite now additionally verifies:

- `random.undo` resolves to `WorkflowIconKind::undo`;
- `random.master` continues to resolve to `WorkflowIconKind::dice`;
- a software-rendered rotary has a measurable upper-left highlight and lower-right shade;
- the fixed 1536 x 900 geometry and existing 64/112-pixel rotary size contract remain unchanged.

Fresh MAIN, MODULATION, FX, and SETTINGS PNG snapshots were generated by the final Release test. MAIN and FX were visually reviewed at native 1536 x 900. The V0.10.3 label, new rotary depth, large Cutoff rendering, dimmed FX rendering, Teal/Amber foreground information, and dedicated Undo arrow are present without overlap or clipping.

## 4. Confirmed environment and commands

- Windows 11 x64
- Visual Studio 2026 Community 18.9.2
- generator `Visual Studio 18 2026`, architecture `x64`
- MSVC 19.51.36256.0 (`14.51.36231` tool directory)
- Windows SDK 10.0.26100.0
- CMake 4.4.3
- JUCE 9.0.1
- C++20

```powershell
cmake --fresh -S . -B build -G "Visual Studio 18 2026" -A x64
cmake --build build --config Debug --parallel
ctest --test-dir build -C Debug --output-on-failure
cmake --build build --config Release --parallel
ctest --test-dir build -C Release --output-on-failure
```

The fresh configure selected MSVC 19.51.36256.0 and Windows SDK 10.0.26100.0. Generated Debug and Release inputs resolved to 0.10.3.

An initially open user-started Release Standalone held `Artifacts/Release/DeepPluck.exe` during the first local-copy attempt. That process was not terminated by automation. After it was manually closed, the exact full Release build command and complete test invocation passed. This was a transient file lock, not a source, compiler, test, or final Definition-of-Done failure.

## 5. Final build and test results

| Configuration | Build | Compiler errors | New compiler warnings | CTest result |
|---|---|---:|---:|---:|
| Debug | pass | 0 | 0 | 28/28 pass, 60.22 s |
| Release | pass | 0 | 0 | 28/28 pass, 15.85 s |

Both `artifact_version` tests passed. All pre-existing DSP, headroom, performance, migration, preset, randomization, effects, integration, state-neutrality, and audio-neutrality thresholds remain unchanged.

## 6. Version and local artifacts

`project(DeepPluck VERSION 0.10.3)` is the single authoritative current version. VST3 metadata, Standalone FileVersion/ProductVersion, generated JUCE macros, GUI labels, and project-local copies all resolve to 0.10.3.

| Project-local artifact | Bytes | SHA-256 |
|---|---:|---|
| Debug VST3 inner binary | 28,414,976 | `A00CD7A872FD13925F4E21131728361987D9E25149F9DEA2BBE5D3A4F46C5164` |
| Debug Standalone | 28,856,832 | `430E63383DB32F6E4E13C4B81E86D8583CCBB093EC08FA6414CB3965BA6BAAEE` |
| Release VST3 inner binary | 9,422,848 | `0F90A8BD852438C662879999005C933281B3FDE13A972D439E20CBD972EF80CB` |
| Release Standalone | 9,442,816 | `7D96D76BD66134489B6254DF3D4F2BC7637AAE35EBF942F2278F3996A3F11EDF` |

Each build output is byte-identical to its `Artifacts/<configuration>` copy. Both complete VST3 bundles and both Standalone applications exist.

## 7. Standalone smoke

Both Standalone applications reached input-idle with a nonzero native main-window handle, accepted a normal main-window close, exited within the timeout with code 0, and left no test process behind:

| Configuration | Window handle | Exit code |
|---|---:|---:|
| Debug | 2,164,498 | 0 |
| Release | 3,147,462 | 0 |

This verifies construction and clean shutdown. It is not a listening or audio-device acceptance claim.

## 8. Installation and repository hygiene

`COPY_PLUGIN_AFTER_BUILD` remains `FALSE`; the build copied only into project-local `Artifacts`. The pre-existing manually installed system VST3 retained its 2026-08-31 timestamps and hashes:

| Existing system file | Bytes | SHA-256 |
|---|---:|---|
| VST3 inner binary | 7,870,464 | `288F1BC88BBB8FCD131DA089846C3ED99D5E554B77EA9DA4A97EA18E2000FDC3` |
| `moduleinfo.json` | 1,086 | `E42CA30EF209944C12BFB43805D72306F36C642408794DC3D428586F5486FD45` |

`build/` and `Artifacts/` remain ignored and contain zero tracked entries. No file under `JUCE/`, `Source/Synth/`, `Source/Effects/`, `Source/Parameters/`, or the processor changed. Protected untracked files were neither modified nor staged; representative hashes remain unchanged:

| Protected untracked file | Bytes | SHA-256 |
|---|---:|---|
| `CubaseTest/DeepPluckTest.cpr` | 785,571 | `A039DBBF9F60E8A8C61AC11C5CD63527CCD2EE5FF9935020CC0071B93AF36C5B` |
| source GUI image | 1,670,004 | `1C974D7D7820031BE8CB09FB1B2CE656FE4F6F80E344CC9F416155580C5FD219` |
| V0.10.0 master prompt | 66,004 | `627E27F9F9C0DB59576865A6A4B6FED43AC3DE5A4543CF6D60DD2B177B6953EA` |

No push was performed.

## 9. Documentation changed

- `README.md`: V0.10.3 status, rotary depth, Undo icon behavior, regression coverage, fixed Standalone geometry, confirmed environment, and Cubase checklist;
- `ARCHITECTURE.md`: V0.10.3 version, layered rotary rendering, semantic icon mapping, and automated coverage;
- `AGENTS.md`: confirmed V0.10.3 reference environment;
- `CMakeLists.txt`: authoritative 0.10.3 version and milestone description;
- this implementation report.

## 10. Manual Cubase and visual checklist — open

1. Confirm Cubase recognizes V0.10.3 as the same instrument and exposes exactly sixty-two automation parameters in the unchanged order.
2. Restore representative V0.1.0-through-V0.10.2 projects, presets, states, and automation.
3. Judge the rotary depth on ordinary, disabled/dimmed, header, FX, and large Cutoff controls at Windows scaling 100%, 125%, and 150%.
4. Confirm the rotary body is dimensional but remains calm and subordinate to the Teal value arc and Amber pointer.
5. Confirm Undo shows the return arrow, performs one-step Random Undo correctly, and Random controls retain the dice.
6. Reconfirm the fixed 1536 x 900 window fits the intended Standalone and Cubase workflows.
7. Perform realtime playback, multiple-instance, project save/reopen, offline bounce, CPU, headroom, FX, and musical listening checks.

V0.10.3 is automatable-complete; these manual host and perceptual checks remain the only open acceptance work.
