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pixtreme 1.2.0

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@minamikik minamikik released this 16 Aug 12:35
· 13 commits to main since this release
v1.2.0
00dd6b4

pixtreme 1.2.0 adds user-supplied fonts for text drawing, expands LUT support with 1D LUTs, new file formats, and bytes/write entry points, and introduces a white-management trio: chromatic adaptation, temperature/tint white balance, and physical white point simulation with named reference whites. The release is purely additive; public signatures and existing behavior are unchanged.

Added

  • px.draw.Font and Font.from_file(path, face_index=0) load user OpenType/TrueType fonts (static faces, variable fonts, and collections). px.draw.text() accepts a Font in place of the bundled font tokens, maps weight to the font's real wght axis and variations to its other axes, and renders missing glyphs with the selected face's .notdef glyph without fallback lookup.
  • px.core.Lut1D is a public 1D LUT type with per-channel domains. px.color.apply_lut() accepts Lut | Lut1D and a new linear interpolation token; interpolation defaults stay tetrahedral for 3D and linear for 1D.
  • px.io.read_lut() additionally reads .cube 1D, .3dl (Lustre and headerless dialects), .spi1d, and .spi3d files. px.io.decode_lut() parses LUT bytes with signature sniffing, and px.io.write_lut() writes deterministic .cube text for both LUT types with full float32 round-trip preservation.
  • px.color.chromatic_adaptation() adapts a float32 RGB Frame between CIE 1931 xy white points using px.core.ChromaticAdaptation CAT tokens (bradford, cat02, cat16, von-kries; default cat02).
  • px.color.white_balance() corrects a source illuminant described by temperature (Kelvin on the Planckian locus) and tint (signed Duv offset, positive toward green).
  • px.color.white_point_simulation() physically re-encodes absolute colorimetry between display device whites (the ICC absolute-colorimetric-intent analogue) without chromatic adaptation, reducing to per-channel gain for same-primaries device pairs.
  • px.core.ReferenceWhite names the reference-white tokens d65, d93, d50, and aces, accepted by white_point_simulation() and chromatic_adaptation() alongside direct CIE 1931 xy pairs.

Full changelog: https://github.com/sync-dev-org/pixtreme/blob/main/CHANGELOG.md

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