This update took quite a bit longer than I anticipated (3 weeks instead of 1), but the good news it that there’s a lot to like here!
I’ve bumped the version to 4.3 (was 4.2.17), added native ARM64 support, and optimized a whole bunch of important rendering code paths. In addition, the quality of selection antialiasing has been improved by using a 4×4 super sampling filter, whereas before it was 3×3. There should be no performance loss because this is now optimized to use vectorized SSSE3 instructions (“SIMD”) on x86/x64 systems.
To get this update, make sure you have "Also check for pre-release (beta) versions" enabled in Settings, and then click on the Check Now button. (Unfortunately alpha/beta releases are not currently available for the Microsoft Store version of the app).
For direct download links, please visit the forum.
Changes since 4.2.17 alpha build 7858:
- New: ARM64 is now natively supported, which includes devices such as the Surface Pro X
- Improved: Many areas of the app have been optimized to use SIMD (SSE2/3/4.1, AVX2) on x86/x64
- Drawing on an image with a large number of layers is faster
- Drawing with the Gradient Tool’s alpha mode is faster
- Drawing with the Recolor tool is faster
- Drawing with the Erase or Clone Stamp tool is faster when using a color whose alpha value is less than 255
- Drawing with the Overwrite blend mode is faster
- Drawing with the Shapes tool is faster, due to improved compositing performance
- Drawing with a brush tool without antialiasing is faster
- Tile compression has lower overhead due to being optimized for SSE2 and AVX2
- Working with complex selections is faster
- Many other optimizations all throughout the application and rendering engine
- Improved: Selection antialiasing quality is now better by way of using a 4×4 super sampling filter instead of 3×3. The code has also been optimized to use SSSE3 on x86/x64.
- Improved: Performance should be significantly better on systems without HyperThreading (by reserving 1 core for the UI), and also a bit better on systems with it (by utilizing more of the logical cores)
- Improved: Effect and File Type plugins can now be organized into folders — the plugin loader will recursively search for DLLs up to 1 folder deep
- Fixed: There were some issues with zooming in/out using the keyboard, where the anchoring (centering) point was not calculated correctly, causing the canvas to drift in the wrong direction.
- Fixed: If a download fails in the Prerequisites Installer, it will retry and resume up to 10 times, thus greatly improving its reliability for downloading things like .NET 5 and the Visual C++ Runtime
- Changed: A processor that supports SSSE3 (yes 3 S’s) is now required for x86/x64 systems (previously only SSE2 was required). All CPUs released since about 2006 (e.g. Core 2 Duo) support this.
- Known Issue: Due to crashing, GPU accelerated effects (Gaussian Blur, Motion Blur, Radial Blur) on ARM64 will actually use the CPU for rendering.
5 thoughts on “paint.net 4.3 alpha (build 7878)”
Thank you for your hard work. Amazing changes. I think most developers would need significantly longer than a few weeks for that. Any news on the not working plugins? I – and many people I recommended paint.net to over the years – use them frequently. Losing them without an alternative would be a blow. (I understand that it’s not your fault.)
P.S. Could there be an option to use the new effect subfolders within the application? I love the Plugin Browser, but having your own effect folders in paint.net would be even better.
null54 has already put out an update for his PSFilterPdn plugin, and toehead2001 has an update for his Plugin Browser.
Ed Harvey is still working on an update for his plugins.
Also, I have filed a help request over on at the .NET WinForms GitHub to ask for help on this: https://github.com/dotnet/winforms/issues/5368
Hopefully one of the wizards over there can help!
Good news, I have a fix for EdHarvey’s effects, will be pushing out an update soon
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