blob: 3bf66033c1e534f3a1f6a0fc2956613ef211e5b3 [file] [view] [edit]
<!-- Instructions
This changelog follows the patterns described here: <https://keepachangelog.com/en/>.
Subheadings to categorize changes are `added, changed, deprecated, removed, fixed, security`.
-->
# Changelog
## [Unreleased]
This release has an [MSRV][] of 1.89.
## [0.3.0][] - 2026-10-02
This release has an [MSRV][] of 1.89.
### Added
- `RenderContext::push_clip_rect` for non-isolated rectangular clipping. ([#1916][] by [@LaurenzV][])
- Support for `ImageSampler::alpha`. ([#1880][] by [@LaurenzV][])
### Changed
- Breaking change: Replaced `CompositeMode` with `TargetInit`, adding configurable target clears. ([#1866][] by [@LaurenzV][])
- Breaking change: Renamed `RenderContext::pop_clip_path` to `pop_clip`. ([#1942][] by [@LaurenzV][])
- Breaking change: `GlyphRunBuilder::fill_glyphs` and `stroke_glyphs` now return `Result<(), glifo::GlyphRenderError>`. ([#1944][] by [@LaurenzV][])
- Breaking change: Updated `fearless_simd` to v0.7.0. ([#1853][] by [@LaurenzV][])
- Breaking change: Reorganized shared type re-exports and removed the crate-root `Paint` re-export. ([#1881][] by [@LaurenzV][])
- Root-level blend operations are now isolated from the target background. ([#1865][] by [@LaurenzV][])
- Bitmap glyphs now consistently use bilinear sampling (`ImageQuality::Medium`) instead of switching to bicubic sampling when downscaled. ([#1970][] by [@LaurenzV][])
### Fixed
- Image-sampling errors near texel boundaries with `Repeat`, `Reflect`, and bilinear/bicubic filtering. ([#1946][], [#1950][] by [@LaurenzV][])
- Scene contents being cut off when compositing over a background in the u8 pipeline. ([#1933][] by [@LaurenzV][])
- Layer opacity is now clamped to the range 0 to 1. ([#1856][] by [@LaurenzV][])
- Rendering on big-endian targets. ([#1845][] by [@LaurenzV][])
- Gradient cache collisions between premultiplied and unpremultiplied alpha interpolation. ([#1932][] by [@LaurenzV][])
- Draws with non-invertible paint transforms are now skipped. ([#1949][] by [@grebmeg][])
- Resetting a render context now also resets the aliasing threshold. ([#1945][] by [@LaurenzV][])
- Incorrect placement of non-Apple `sbix` glyphs caused by the Apple Color Emoji workaround. ([#1936][] by [@LaurenzV][])
- Incorrect `sbix` glyph placement caused by sign errors in bearing offsets. ([#1939][] by [@LaurenzV][])
### Optimized
- Rectangle rendering. ([#1962][] by [@nicoburns][])
- Rectangle rendering in multi-threaded contexts. ([#1924][] by [@LaurenzV][])
- Rectangle rendering under rectangular clips. ([#1926][] by [@LaurenzV][])
- Transparency hints for rendered pixmaps. ([#1867][] by [@LaurenzV][])
## [0.2.0][] - 2026-08-07
This release has an [MSRV][] of 1.88.
### Fixed
- Wrong application of extend mode in the y-direction. ([#1803][] by [@LaurenzV][], [@ShiroKSH][])
### Optimized
- Multi-threaded render contexts now initialize task dispatch lazily on the first drawing operation, avoiding unnecessary setup for empty frames and after resets. ([#1787][] by [@LaurenzV][], [@yezhizhen][])
## [0.1.0][] - 2026-07-29
This release has an [MSRV][] of 1.88.
### Added
- `RenderContext::reset_and_resize`, allowing a render context to be reused after its target size changes. ([#1705][] by [@LaurenzV][])
- `RenderContext::is_multi_threaded` for querying whether the context uses multi-threaded rendering. ([#1703][] by [@LaurenzV][])
- Inverse blurred rounded rectangles through the new `invert` parameter on `RenderContext::fill_blurred_rounded_rect`, enabling inset box shadows. ([#1715][] by [@nicoburns][])
- `FilterPrimitive::DropShadowOnly` for rendering a drop shadow without compositing the original input over it. ([#1763][] by [@LaurenzV][])
### Changed
- Breaking change: The methods `render_to_pixmap` and `composite_to_pixmap_at_offset`
have been replaced with unified `render` and `render_with` methods, whose settings
control the target, pixel format, compositing, and rendering mode.
([#1665][] by [@LaurenzV][])
- The Vello CPU frontend and coarse rasterizer have been rewritten. As a result:
- Filter layers always render correctly, even at viewport boundaries.
- A number of issues with layer clipping have been fixed.
- Performance improves by up to 10% across a variety of rendering workloads. ([#1701][] by [@LaurenzV][])
### Fixed
- Opaque image rendering when blend modes or masks are active. ([#1697][] by [@LaurenzV][])
- Gaussian blur strength changing abruptly at decimation thresholds. ([#1720][] by [@grebmeg][])
- Panics when resetting or dropping a multi-threaded render context while worker tasks are still in flight. ([#1732][], [#1756][] by [@yezhizhen][])
### Optimized
- x86 rendering, including blending and high-quality image sampling, through improved SIMD code generation. ([#1688][] by [@LaurenzV][])
- Clip-path intersection by skipping rows outside the paths' shared vertical extent and locating the first relevant strip with binary search. ([#1690][], [#1691][] by [@LaurenzV][])
- Radial-gradient evaluation and gradient lookup-table generation. ([#1723][], [#1726][] by [@LaurenzV][])
- Rendering opaque `peniko::ImageData` by computing and retaining its transparency hint during conversion. ([#1760][] by [@tronical][])
## [0.0.9][] - 2026-05-30
This release has an [MSRV][] of 1.88.
### Fixed
- Rendering of glyphs with complex paints. ([#1668][] by [@LaurenzV][])
- Rendering of paths with high winding counts. ([#1673][] by [@b0nes164][])
### Optimized
- Optimized rendering of a number of blend modes. ([#1653][] by [@LaurenzV][])
## [0.0.8][] - 2026-05-15
This release has an [MSRV][] of 1.88.
### Added
- `render_decoration` on glyph run builders for rendering text decorations with skip-ink behavior. ([#1592][] by [@taj-p][])
- Support for rendering VARC glyphs in text paths. ([#1594][] by [@nicoburns][], [@oscargus][])
- Support for synthetic font emboldening in text glyph runs via `GlyphRunBuilder::font_embolden` and `glifo::FontEmbolden`. ([#1628][] by [@jrmoulton][])
### Changed
- Migrated text rendering to `glifo`; rendering, glyph, and image APIs now use an explicit `Resources` object for persistent image and glyph caches. `RenderContext::render_to_buffer`, `RenderContext::render_to_pixmap`, `RenderContext::composite_to_pixmap_at_offset`, and `RenderContext::glyph_run` now take resources, and image registration moved from `RenderContext` to `Resources`. ([#1562][] by [@LaurenzV][])
- Renamed image transparency hint APIs from `may_have_opacities` and `*_opacity_hint` to `may_have_transparency` and `*_transparency_hint`. ([#1613][] by [@upsuper][])
### Removed
- Experimental `vello_api` integration and `api` module. ([#1602][] by [@waywardmonkeys][])
- Support for recordings.
This decision was made due to a number of downsides that came with the implementation.
See the corresponding PR and Zulip thread for more information. ([#1611][] by [@LaurenzV][])
### Fixed
- Rendering of rare degenerate radial gradients with undefined regions, which should render those regions transparent. ([#1529][] by [@LaurenzV][])
- Incorrect rendering of filter layers containing nested clip layers. ([#1541][] by [@LaurenzV][])
- x86 artifacts in bicubic image rendering caused by negative interpolated color values wrapping during SIMD `f32` to `u8` conversion. ([#1563][] by [@LaurenzV][])
- Stroked glyph rendering when scaled glyph runs absorb the transform into the font size, preserving the expected stroke width. ([#1576][] by [@LaurenzV][])
- COLR glyph rendering, including glyphs using non-default blend modes. ([#1584][] by [@LaurenzV][])
- Rendering of inverted rectangles, including blurred rounded rectangles. ([#1589][] by [@LaurenzV][])
### Optimized
- CPU fine rasterization performance through improved SIMD codegen. ([#1616][] by [@LaurenzV][])
## [0.0.7][] - 2026-03-24
This release has an [MSRV][] of 1.92.
### Added
- `composite_to_pixmap_at_offset` method to `RenderContext` for compositing at specific offsets within a larger pixmap. ([#1416][] by [@grebmeg][])
- `ImageResolver` for resolving opaque image IDs at rasterization time. ([#1451][] by [@grebmeg][])
- Support for image tinting. ([#1460][] by [@grebmeg][])
### Fixed
- Rendering of blurred rounded rectangles with zero or very small blur standard deviations. ([#1422][] by [@tomcur][])
- Off-by-one error in gaussian blur decimation filter. ([#1488][] by [@LaurenzV][])
- Filter layers with zero clips. ([#1437][] by [@LaurenzV][])
### Optimized
- Bilinear image sampling in the `RenderMode::OptimizeQuality` (`f32`) pipeline. ([#1343][] by [@tomcur][])
## [0.0.6][] - 2026-01-15
This release has an [MSRV][] of 1.88.
### Added
- Support for the "offset" filter. ([#1351] by [@waywardmonkeys])
### Changed
- Breaking change: Updated Peniko to [v0.6.0](https://github.com/linebender/peniko/releases/tag/v0.6.0). ([#1349][] by [@DJMcNab][])
- This also updates Kurbo to [v0.13.0](https://github.com/linebender/kurbo/releases/tag/v0.13.0).
- Upgraded Skrifa to v0.40.0. ([#1353][] by [@waywardmonkeys][])
- Upgraded Hashbrown to v0.16.1. ([#1354][] by [@waywardmonkeys][])
- Optimized image rendering for axis-aligned images. ([#1335][] by [@grebmeg][])
See also the [vello_hybrid 0.0.6](../vello_gpu/CHANGELOG.md#006---2026-01-15) and [vello_common 0.0.6](../vello_common/CHANGELOG.md#006---2026-01-15) releases.
## [0.0.5][] - 2026-01-08
This release has an [MSRV][] of 1.88.
### Added
- The `RenderContext` now has a `set_blend_mode` (and a corresponding `blend_mode` getter method) that can be used to support non-isolated blending. ([#1159][] by [@LaurenzV])
- The `RenderContext` now contains a `push_clip_path` and `pop_clip_path` method for performing non-isolated clipping. ([#1203][] by [@LaurenzV])
- Experimental support for image filter effects: ([#1286][] by [@grebmeg][])
- New filter API methods on `RenderContext`:
- `set_filter_effect()` - Set a filter to be applied to subsequent drawing operations.
- `push_filter_layer()` - Create a new layer with a filter effect.
- `FilterEffect` trait providing both u8 and f32 precision variants for rendering across different backends.
- Gaussian Blur filter with configurable standard deviation and edge modes (`None`, `Mirror`, `Wrap`, `Duplicate`).
Uses an optimized decimated blur algorithm with automatic downsampling for performance.
- Drop Shadow filter with customizable offset, blur radius, and shadow color.
- Flood filter for solid color fills.
- A `set_mask` method to make it possible to mask rendered paths without inducing layer isolation. ([#1237][] by [@LaurenzV])
- Support for conditionally disabling the u8 or f32 pipeline. ([#1294][] by [@nicoburns])
### Changed
- Improved performance of rendering opaque images. ([#1327][] by [@grebmeg])
### Known Limitations
- Filter effects currently support only single-primitive filters; filter graphs with multiple chained primitives are not yet supported.
- Multithreaded rendering is not supported for filter effects; filters are only applied in single-threaded mode.
See also the [vello_hybrid 0.0.5](../vello_gpu/CHANGELOG.md#005---2026-01-08) and [vello_common 0.0.5](../vello_common/CHANGELOG.md#005---2026-01-08) releases.
## [0.0.4][] - 2025-10-17
This release has an [MSRV][] of 1.86.
No changelog was kept for this release.
See also the [vello_hybrid 0.0.4](../vello_gpu/CHANGELOG.md#004---2025-10-17) and [vello_common 0.0.4](../vello_common/CHANGELOG.md#004---2025-10-17) releases.
## [0.0.3][] - 2025-10-04
This release has an [MSRV][] of 1.86.
No changelog was kept for this release.
See also the [vello_common 0.0.3](../vello_common/CHANGELOG.md#003---2025-10-04) release.
## [0.0.2][] - 2025-09-22
This release has an [MSRV][] of 1.85.
No changelog was kept for this release.
See also the [vello_common 0.0.2](../vello_common/CHANGELOG.md#002---2025-09-22) release.
## [0.0.1][] - 2025-05-10
This release has an [MSRV][] of 1.85.
This is the initial release. No changelog was kept for this release.
See also the [vello_common 0.0.1](../vello_common/CHANGELOG.md#001---2025-05-10) release.
[@DJMcNab]: https://github.com/DJMcNab
[@b0nes164]: https://github.com/b0nes164
[@grebmeg]: https://github.com/grebmeg
[@jrmoulton]: https://github.com/jrmoulton
[@LaurenzV]: https://github.com/LaurenzV
[@nicoburns]: https://github.com/nicoburns
[@oscargus]: https://github.com/oscargus
[@ShiroKSH]: https://github.com/ShiroKSH
[@taj-p]: https://github.com/taj-p
[@tomcur]: https://github.com/tomcur
[@tronical]: https://github.com/tronical
[@upsuper]: https://github.com/upsuper
[@waywardmonkeys]: https://github.com/waywardmonkeys
[@yezhizhen]: https://github.com/yezhizhen
[#1159]: https://github.com/linebender/vello/pull/1159
[#1203]: https://github.com/linebender/vello/pull/1203
[#1237]: https://github.com/linebender/vello/pull/1237
[#1286]: https://github.com/linebender/vello/pull/1286
[#1294]: https://github.com/linebender/vello/pull/1294
[#1327]: https://github.com/linebender/vello/pull/1327
[#1335]: https://github.com/linebender/vello/pull/1335
[#1343]: https://github.com/linebender/vello/pull/1343
[#1349]: https://github.com/linebender/vello/pull/1349
[#1351]: https://github.com/linebender/vello/pull/1351
[#1353]: https://github.com/linebender/vello/pull/1353
[#1354]: https://github.com/linebender/vello/pull/1354
[#1416]: https://github.com/linebender/vello/pull/1416
[#1422]: https://github.com/linebender/vello/pull/1422
[#1437]: https://github.com/linebender/vello/pull/1437
[#1451]: https://github.com/linebender/vello/pull/1451
[#1460]: https://github.com/linebender/vello/pull/1460
[#1488]: https://github.com/linebender/vello/pull/1488
[#1529]: https://github.com/linebender/vello/pull/1529
[#1541]: https://github.com/linebender/vello/pull/1541
[#1562]: https://github.com/linebender/vello/pull/1562
[#1563]: https://github.com/linebender/vello/pull/1563
[#1576]: https://github.com/linebender/vello/pull/1576
[#1584]: https://github.com/linebender/vello/pull/1584
[#1589]: https://github.com/linebender/vello/pull/1589
[#1592]: https://github.com/linebender/vello/pull/1592
[#1594]: https://github.com/linebender/vello/pull/1594
[#1602]: https://github.com/linebender/vello/pull/1602
[#1611]: https://github.com/linebender/vello/pull/1611
[#1613]: https://github.com/linebender/vello/pull/1613
[#1616]: https://github.com/linebender/vello/pull/1616
[#1628]: https://github.com/linebender/vello/pull/1628
[#1653]: https://github.com/linebender/vello/pull/1653
[#1665]: https://github.com/linebender/vello/pull/1665
[#1668]: https://github.com/linebender/vello/pull/1668
[#1673]: https://github.com/linebender/vello/pull/1673
[#1688]: https://github.com/linebender/vello/pull/1688
[#1690]: https://github.com/linebender/vello/pull/1690
[#1691]: https://github.com/linebender/vello/pull/1691
[#1697]: https://github.com/linebender/vello/pull/1697
[#1701]: https://github.com/linebender/vello/pull/1701
[#1703]: https://github.com/linebender/vello/pull/1703
[#1705]: https://github.com/linebender/vello/pull/1705
[#1715]: https://github.com/linebender/vello/pull/1715
[#1720]: https://github.com/linebender/vello/pull/1720
[#1723]: https://github.com/linebender/vello/pull/1723
[#1726]: https://github.com/linebender/vello/pull/1726
[#1732]: https://github.com/linebender/vello/pull/1732
[#1756]: https://github.com/linebender/vello/pull/1756
[#1760]: https://github.com/linebender/vello/pull/1760
[#1763]: https://github.com/linebender/vello/pull/1763
[#1787]: https://github.com/linebender/vello/pull/1787
[#1803]: https://github.com/linebender/vello/pull/1803
[#1845]: https://github.com/linebender/vello/pull/1845
[#1853]: https://github.com/linebender/vello/pull/1853
[#1856]: https://github.com/linebender/vello/pull/1856
[#1865]: https://github.com/linebender/vello/pull/1865
[#1866]: https://github.com/linebender/vello/pull/1866
[#1867]: https://github.com/linebender/vello/pull/1867
[#1880]: https://github.com/linebender/vello/pull/1880
[#1881]: https://github.com/linebender/vello/pull/1881
[#1916]: https://github.com/linebender/vello/pull/1916
[#1924]: https://github.com/linebender/vello/pull/1924
[#1926]: https://github.com/linebender/vello/pull/1926
[#1932]: https://github.com/linebender/vello/pull/1932
[#1933]: https://github.com/linebender/vello/pull/1933
[#1936]: https://github.com/linebender/vello/pull/1936
[#1939]: https://github.com/linebender/vello/pull/1939
[#1942]: https://github.com/linebender/vello/pull/1942
[#1944]: https://github.com/linebender/vello/pull/1944
[#1945]: https://github.com/linebender/vello/pull/1945
[#1946]: https://github.com/linebender/vello/pull/1946
[#1949]: https://github.com/linebender/vello/pull/1949
[#1950]: https://github.com/linebender/vello/pull/1950
[#1962]: https://github.com/linebender/vello/pull/1962
[#1970]: https://github.com/linebender/vello/pull/1970
[Unreleased]: https://github.com/linebender/vello/compare/sparse-strips-v0.3.0...HEAD
[0.3.0]: https://github.com/linebender/vello/compare/sparse-strips-v0.2.0...sparse-strips-v0.3.0
[0.2.0]: https://github.com/linebender/vello/compare/sparse-strips-v0.1.0...sparse-strips-v0.2.0
[0.1.0]: https://github.com/linebender/vello/compare/sparse-strips-v0.0.9...sparse-strips-v0.1.0
[0.0.9]: https://github.com/linebender/vello/compare/sparse-strips-v0.0.8...sparse-strips-v0.0.9
[0.0.8]: https://github.com/linebender/vello/compare/sparse-strips-v0.0.7...sparse-strips-v0.0.8
[0.0.7]: https://github.com/linebender/vello/compare/sparse-strips-v0.0.6...sparse-strips-v0.0.7
[0.0.6]: https://github.com/linebender/vello/compare/sparse-strips-v0.0.5...sparse-strips-v0.0.6
[0.0.5]: https://github.com/linebender/vello/compare/sparse-stips-v0.0.4...sparse-strips-v0.0.5
[0.0.4]: https://github.com/linebender/vello/compare/sparse-stips-v0.0.3...sparse-strips-v0.0.4
[0.0.3]: https://github.com/linebender/vello/compare/sparse-stips-v0.0.2...sparse-strips-v0.0.3
[0.0.2]: https://github.com/linebender/vello/compare/sparse-strips-v0.0.1...sparse-stips-v0.0.2
[0.0.1]: https://github.com/linebender/vello/compare/ca6b1e4c7f5b0d95953c3b524f5d3952d5669c5a...sparse-strips-v0.0.1
[MSRV]: README.md#minimum-supported-rust-version-msrv