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kotulskyandkotulsky
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* perf(gpu): reuse filled-shape effect maps during translation Hash filled-shape outlines in local coordinates so whole-pixel movement can use the existing effect-map translation reuse path. Keep its region-size and exact coverage checks, and invalidate the key when the outline deforms. Add a shape-key regression and a synchronized styled-shape group benchmark with fresh-render parity verification. On RTX 4070 Laptop, the 1600x1200 fixture improves from 61.336 to 33.120 ms median; a 24 MP full-canvas fixture improves from 223.018 to 184.289 ms. Warm frames rebuild zero effect programs, and the quick fixture matches fresh rendering exactly. * fix(gpu): stabilize fractional shape effect fingerprints Quantize only origin-normalized fingerprint coordinates to a 1/65536 pixel grid and canonicalize signed zero. Preserve the render path and exact coverage guard. Cover fractional anchors and handles, positive and negative integer translations and handle deformation. Exercise fractional origins in the benchmark and document its entry points. All 40 GPU tests, Clippy and WASM checks pass; reused output matches a fresh compositor exactly. --------- Co-authored-by: kotulsky <7805437+kotulsky@users.noreply.github.com>