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KattandClaude Opus 5.5
6240ed646e
Measured against After Effects 26.3 with the original examples/ae-spatial-tangents.jsx (three paths, ten keys, even and uneven timing): an auto-Bezier key's out tangent is (next - previous) / 6 and the in tangent its mirror, whatever the key times; an end key uses its one neighbour, (neighbour - key) / 6. EffectCraft gave end keys none and scaled middle tangents by segment length, so paths with auto-Bezier keys ran up to 28 px from AE's. All ten tangents now match; path samples are within 0.05 px. Tests that relied on end keys having no tangent now expect AE's: Spatial Bezier keeps auto keys' handles (linear keys still get a third), the motion-path handle is drawn at a sixth, and a straight loopOut path is compared within 1e-9. docs/fidelity records the method and scores. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>