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filmr

0.7.3 - 2026-04-14

v0.7.3 Apr 14 2026 at 08:17 UTC

✨ Features

  • Full-spectrum dye transmittance output (Yellow/Magenta/Cyan dye spectra × D65 → CIE XYZ → sRGB).
  • Self-calibrating exposure norm via binary search (consistent brightness across all presets).
  • Film stock analyzer tool (cargo xtask analyze <image>).
  • Lucky Color 200 and Ricoh GR Street Night presets.

🐛 Fixes

  • Fix negative film inversion in spectral dye output path.
  • Fix grain model: Selwyn √D theory, color_correlation 0.93.
  • Rewrite grain as physically-based texture field (multiplicative, per-layer, spatially correlated).

📝 Documentation

  • Rendering Pipeline chapter with LaTeX formulas in mdBook.
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