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Envelopes: Anti-Alias and Preserve Shape Using change how distorted images draw

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Envelope Options stored Anti-Alias and Preserve Shape Using, but nothing that
draws an image read them: a distorted image was always smoothed and always
cut into clip groups.

- With Anti-Alias off, each piece of a distorted image is marked pixelated
  (saved as `pixelated`). The renderer draws it with nearest-neighbor
  sampling and without mips, SVG export writes `image-rendering: pixelated`,
  and PDF export writes it without /Interpolate.
- With Preserve Shape Using Transparency, each piece is the image with a
  white opacity mask in the piece's shape instead of a clip group. The
  renderer paints an image whose mask is one plain white path straight into
  that path, as it does for an image in a clip group, when the path lies
  inside the image's frame.

Docs: docs/mcp.md, docs/target-app-parity.md.
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2026-10-29 11:07:57 +07:00
committed by bflatastic
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@@ -5134,7 +5134,10 @@ the options, `editing`), or with no envelope selected the options new envelopes
the current shape) switch its kind and keep its content. `object.envelope.options` sets `fidelity` and the options
(`antiAlias`, `preserveShape`: clippingMask or transparency, `distortAppearance`, `distortLinearGradients`,
`distortPatternFills`; the last two need `distortAppearance`); with no envelope selected it sets them for new
envelopes. New envelopes start with Distort Appearance on, as in the reference app; envelopes saved before these
envelopes. With `antiAlias` false, the envelope's distorted images are drawn without smoothing, SVG export writes
them with `image-rendering: pixelated` and PDF export writes them without `/Interpolate`. With `preserveShape`
`transparency`, each piece of a distorted image is the image with a white opacity mask in the piece's shape instead
of a clip group, after Expand too. New envelopes start with Distort Appearance on, as in the reference app; envelopes saved before these
options existed keep their old look (appearance applied after the distortion).
`object.envelope.release` gives back the content and the envelope's shape (a grey gradient mesh for warp and mesh