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Black & White: Tint keeps the gray's luminosity, as After Effects

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After Effects tints Black & White's gray like a Color blend: the tint colour's
hue and saturation at the gray's luminosity (weights 0.3 / 0.59 / 0.11, channels
outside 0..1 pulled back toward the gray). EffectCraft used the gray as HSL
lightness. Measured in AE 2026, Tint Color [1, 0.5, 0]: a red solid at Reds 10
(case 717) AE (43, 21, 0), EffectCraft was (51, 26, 0), now (43, 21, 0); a
yellow solid at the default sliders (gray 0.6, case 825) AE (255, 129, 2), now
(255, 129, 3); white stays white. The six sliders already matched AE on eight
colours (cases 816, 817). CPU and GPU.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
vangel76
2026-10-19 16:14:21 +02:00
co-authored by Claude Opus 5.5
parent 960f41d50b
commit 70c1349cbc
4 changed files with 80 additions and 15 deletions
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docs/effects-parity.md
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@@ -30,7 +30,7 @@ corpus compares renders, each effect is assumed to differ somewhere, and users k
| Audio | 13 | 0 | CPU by design (applied in the mixdown) |
| Blur & Sharpen | 16 | 15 | Gaussian Blur interaction and output to be measured first ([fidelity/ae-2026-acceptance.md](fidelity/ae-2026-acceptance.md)) |
| Channel | 13 | 13 | — |
| Color Correction | 40 | 40 | Tint and Tritone match After Effects 2026 renders (Rec. 601 luminance); Tint has Swap Colors (#963); ACES 2.0 / OCIO 2.5 (26.5); Apply Color LUT (#514) and 32-bpc blending (#494) are closed |
| Color Correction | 40 | 40 | Tint, Tritone and Black & White (sliders and Tint) match After Effects 2026 renders (Rec. 601 luminance); Tint has Swap Colors (#963); ACES 2.0 / OCIO 2.5 (26.5); Apply Color LUT (#514) and 32-bpc blending (#494) are closed |
| Distort | 39 | 35 | Liquify has no viewer brush; #303 (Mesh Warp drag) and #534 (CC Power Pin Unstretch) are closed |
| Expression Controls | 9 | 9 | — |
| Generate | 26 | 25 | Fractal on the CPU (needs f64); #526 (Reset) and #536 (Write-on marks) are closed |
@@ -65,6 +65,7 @@ the GPU is performance, not parity.
| Date | Change | Summary |
|---|---|---|
| 2026-10-19 | minor | Tritone uses Rec. 601 luminance, measured against After Effects 2026 renders of a red solid and a grey ramp (CPU and GPU) |
| 2026-10-19 | minor | Black & White's Tint keeps the gray's luminosity (Color blend), measured against After Effects 2026 renders (CPU and GPU) |
| 2026-10-18 | minor | Tint uses Rec. 601 luminance weights, measured against After Effects 2026 renders of red, green, blue and grey solids (CPU and GPU) |
| 2026-10-12 | minor | Parameters 3,014 to 3,017 (effects.md); #303, #514, #526, #533–#536 marked closed instead of pending |
| 2026-10-12 | minor | Effect colour labels (26.5) added in Effect Controls |