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vangel76andClaude Opus 5.5 47b3582a0a Venetian Blinds: stripes from the layer centre, Gaussian feather on both edges, as After Effects
After Effects measures the blinds' phase from the layer's centre and softens
both edges of the transparent band with a Gaussian of sigma = Feather / 2; the
band runs from the origin's phase to Completion x Width. EffectCraft measured
from the buffer corner and ramped only one edge linearly over Feather (a hard
edge on the other side). Fitted to AE 2026 renders of Completion 40,
Direction 30, Width 50, Feather 5 on a 960 x 540 and a 480 x 270 layer (the
origin is the centre + 0.6 px): case 715 was 499 of 5184 grid points off
(max 91/255, 7.1 % of pixels > 8), now 28 (0.056 %), all within ~6 px of the
layer edge where AE differs (up to 48/255, not modelled); away from it within
6/255 (test: one AE row of the 480 x 270 render). CPU and GPU (new erf-based
kernel, same term count). Completion 0 / 100 are unchanged, so the
Transitions presets keep their start and end frames.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-19 16:24:05 +02:00
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