FullSpectrum Studio v0.4.12 macOS H2C Prerelease

FullSpectrum Studio v0.4.12 macOS H2C Prerelease

This macOS-only prerelease focuses on the H2C workflow: faster Best planner
search, clearer palette controls, and a viewport that uses an H2C-sized plate
reference. It keeps the same honest scope as previous releases:
FullSpectrum reduces and remaps existing Bambu painted .3mf states. It does
not repaint, smooth or clean up a badly painted model.

What changed since v0.4.9

• Best planner now uses an adaptive spectrum search. It probes around quality
  70/100, reads the resulting error/waste, then jumps only to quality bands
  that are likely to improve the model. Skipped bands are written into the JSON
  result and validation report.
• Anchor shortlisting now keeps hue and neutral spectrum compartments so reds,
  blues, yellows, darks and warm/cool neutrals have a better chance to survive
  into the final physical-slot search.
• The engine builds a target-aware in-memory mix recipe database for the active
  Bambu candidate pool, so repeated anchor trials reuse reconstructed Bambu mix
  colors instead of recomputing the same pair and triple recipes.
• macOS planning can use render-preview weighting. The optimized viewport mesh
  can guide anchor selection for large visible regions while the final .3mf
  export still uses the original decoded Bambu paint states.
• The macOS viewer now shows an H2C-oriented 330 x 320 Textured PEI plate
  reference, including a front marker and model-scale-aware plate sizing.
• The app displays the bundle version badge in the lower-right corner.
• Catalog planning and anchor selection can be filtered by Bambu material
  family, with optional pinned anchors and one-click recommended anchors.
• The estimate text uses option-aware local runtime history and model metrics,
  and active progress reports when a deep search is still working rather than
  silently appearing frozen.

Seraphin private benchmark

The private Seraphin source model was used locally to validate this build. The
source .3mf, reference .glb and generated model exports are not included in
the repository or release notes.

Item	Result
Mode	official, all-bambu, automatic physical slots, Best planner
Planning sample	Render preview weighting with local reference
Smart quality tested	70, then 100
Smart quality skipped	35, 50, 85
Local wall time	123.45s
Selected quality	100/100
Palette	5 physical anchors, 21 mixed slots, 26 output slots
Estimated mean Delta E	1.45
Estimated max Delta E	10.94
Quality score	96.8

Screenshots and the full validation narrative are in
the macOS H2C adaptive planner report.

Validation

• python3 -m unittest discover -s tests -v passed: 45 tests.
• swift build passed.
• ./script/build_and_run.sh build produced dist/FullSpectrum Studio.app.
• The Desktop copy reports version 0.4.12, build 14.
• codesign --verify --deep --verbose=2 passed for the Desktop app bundle.

Known limits

• FullSpectrum still remaps existing paint states only.
• Very complex/noisy painted models can still take minutes in Best mode.
• Bambu catalog colors are local planning entries, not live regional stock
  checks.
• Physical print color depends on filament opacity, layer height, lighting and
  calibration; the app validates against Bambu's reconstructed swatches, not a
  measured print.