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FinnNkandClaude Opus 5.5
89d127d259
* fix(curves): 32-bit Curves continue past 0..1 like Photoshop In a 32-bit RGB document an edited Curves clipped every sample to the curve's table, so HDR values above 1 (and negative ones) were flattened. Photoshop extends the curve beyond its end points along its end segments: the straight curve [[0,0],[255,128]] maps -0.5, 0.5 and 2 to -0.250980407, 0.250980407 and 1.003921628 (measured in Photoshop 27.11 on the issue). The CPU compositor, Image > Adjustments and the GPU kernel now do the same, with the end slopes measured over 16 table steps. 8/16-bit documents and unedited curves are unchanged. Fixes #7157 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * fix(curves): extend 32-bit curves in RGB documents only The curve's space is not the document's: a grayscale, CMYK or Lab 32-bit document with an RGB-space curve keeps the table's ends. The document mode now reaches the decision on the CPU (apply_in, the compositor) and the GPU (adjustment_program). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>