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vangel76andClaude Opus 5.5
6eeee03658
In a segment that is Bezier on one side and linear on the other, the linear side keeps the segment's average speed, but with the 16.67 % influence After Effects shows for linear keys in the Keyframe Velocity dialog (and reports to scripts), not 33.3 %. Measured on an After Effects 2026 time-remap render (a square at x = 50 + 455 * remap): out of a key at 2 s (3.5, speed 0, influence 50 %) into a linear key at 4 s (0.5), AE plays 3.290 at 2.5 s and 2.657 at 3 s; EffectCraft played 3.308 and 2.629 (8 and 13 px off), now the same square positions to the pixel. LINEAR_SIDE_INFLUENCE is used by evaluation (scalar, per-dimension, paths and spatial), side_ease (Graph Editor, velocity dialog, keyIn/OutTemporalEase) and the Lottie export, so exported easing plays as EffectCraft does. Segments linear on both sides stay straight lines. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>