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| 1 | +# Changelog |
| 2 | + |
| 3 | +All notable changes to Kromacut are documented in this file. |
| 4 | + |
| 5 | +## [2.3.2] - 2026-03-13 |
| 6 | + |
| 7 | +### Added |
| 8 | +- **Native desktop app** — Tauri-based builds for macOS (Apple Silicon + Intel), Windows, and Linux |
| 9 | +- **Filament calibration wizard** — Measure accurate TD values from physical test prints with confidence scoring |
| 10 | +- **Advanced optimizer** — Simulated annealing and genetic algorithms for finding optimal filament ordering |
| 11 | +- **Region weighting** — Prioritize accuracy in center or edge regions during auto-paint optimization |
| 12 | +- **Auto-paint Web Worker** — Optimizer runs off the main thread with debounced dispatch and cancellation |
| 13 | +- **Update checker** — Desktop app checks `kromacut.com/version.json` for new versions |
| 14 | +- **Theme persistence** — Dark/light mode choice saved to localStorage |
| 15 | +- **Sticky Build 3D Model button** — Stays visible when scrolling through settings |
| 16 | +- GitHub Actions release workflow for automated multi-platform builds |
| 17 | +- GitHub Actions deploy workflow triggers on version tags |
| 18 | + |
| 19 | +### Changed |
| 20 | +- `filamentCoverage` confidence metric now uses deltaE-based color matching instead of filament-count heuristic |
| 21 | +- Calibration quality metric uses actual filament calibration data instead of hardcoded value |
| 22 | +- Region weights integrated into optimizer scoring via `applyRegionWeightHeuristic` |
| 23 | +- CSP properly configured for Tauri (whitelists `kromacut.com` and Google Fonts) |
| 24 | +- Vite base path set to `/` for custom domain deployment |
| 25 | +- Docs (`TAURI.md`, `UPDATE_CHECKER.md`) moved to `docs/` folder |
| 26 | +- README updated for multi-platform support with correct release links |
| 27 | + |
| 28 | +### Fixed |
| 29 | +- `package-lock.json` version synced to match `package.json` |
| 30 | +- Google Fonts blocked in Tauri production builds due to missing CSP directives |
| 31 | +- `useAutoPaintWorker` firing excessively due to unstable object references |
| 32 | +- Build 3D Model button had transparent gap at top of scroll container |
| 33 | + |
| 34 | +## [2.2.0] - 2026-02-15 |
| 35 | + |
| 36 | +### Added |
| 37 | +- **Auto-paint mode** — Define filaments with color and Transmission Distance, automatic Beer-Lambert optical blending computes optimal layer stacks |
| 38 | +- **Enhanced color matching** — Optimizer evaluates filament orderings for best color reproduction |
| 39 | +- **Repeated filament swaps** — Allow filaments to appear multiple times in the stack for intermediate blended colors |
| 40 | +- **Height dithering** — Floyd-Steinberg error diffusion for smoother tonal transitions |
| 41 | +- **Filament profiles** — Save, load, import/export (`.kapp` files) auto-paint configurations |
| 42 | +- **Transition zones** — Automatic calculation of vertical zones where filament colors blend |
| 43 | +- **Processing overlay** — Unified progress indicator for quantization and dedithering |
| 44 | +- **Build warning dialog** — Warns before building 3D geometry when layer count or pixel count is high |
| 45 | +- **Resizable splitter** — Draggable two-pane layout with percentage-based sizing |
| 46 | +- Print settings persistence to localStorage |
| 47 | +- Auto-paint state persistence to localStorage |
| 48 | + |
| 49 | +### Changed |
| 50 | +- Refactored hooks architecture — business logic extracted into custom hooks (`useSwatches`, `useQuantize`, `useThreeScene`, `useAppHandlers`, `useImageHistory`, `useFilaments`, `useProfileManager`, `useColorSlicing`, `useSwapPlan`, `useProcessingState`, `useBuildWarning`) |
| 51 | +- Greedy meshing algorithm made async with periodic yielding for UI responsiveness |
| 52 | +- 3MF export enriched with layer height, first layer height, and filament colors |
| 53 | + |
| 54 | +## [2.0.0] - 2025-12-01 |
| 55 | + |
| 56 | +### Added |
| 57 | +- **3MF export** — Multi-material export with per-color objects and slicer metadata |
| 58 | +- **Layer-by-layer preview slider** — Interactive height slider to visualize print buildup |
| 59 | +- Greedy meshing with separate wall generation to prevent T-junctions |
| 60 | +- Slicer first layer height setting |
| 61 | +- Model dimension display in 3D view |
| 62 | + |
| 63 | +### Changed |
| 64 | +- Complete 3D engine rewrite with BufferGeometry per-face triangles |
| 65 | +- Wall generation based on pixel occupancy to reduce banding |
| 66 | +- Texture uses `NearestFilter` with disabled mipmaps for crisp pixel mapping |
| 67 | + |
| 68 | +### Fixed |
| 69 | +- Non-manifold edge prevention |
| 70 | +- Color swap instruction accuracy |
| 71 | +- Inverted normals in mesh generation |
| 72 | + |
| 73 | +## [1.0.0] - 2025-10-01 |
| 74 | + |
| 75 | +### Added |
| 76 | +- Image upload with drag-and-drop support |
| 77 | +- Color quantization (posterize, median-cut, K-means, octree, Wu algorithms) |
| 78 | +- Dedithering (median-filter smoothing pass) |
| 79 | +- Inline color pickers for palette tweaking |
| 80 | +- Per-color slice heights with drag-and-drop reordering |
| 81 | +- Live 2D canvas preview and 3D stacked preview (Three.js) |
| 82 | +- Binary STL export |
| 83 | +- Plain-text print instructions with copy-to-clipboard |
| 84 | +- Image adjustments (exposure, contrast, saturation, etc.) |
| 85 | +- Undo/redo history for image operations |
| 86 | +- Dark/light theme toggle |
| 87 | +- Predefined color palettes |
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