| Summary: | Anti-aliasing is applied when using pressure sensitive stylus, with anti-aliasing unchecked | ||
|---|---|---|---|
| Product: | [Applications] krita | Reporter: | Domarius <domarius> |
| Component: | Brush Engine/Shape | Assignee: | Krita Bugs <krita-bugs-null> |
| Status: | RESOLVED INTENTIONAL | ||
| Severity: | normal | CC: | griffinvalley |
| Priority: | NOR | ||
| Version First Reported In: | 4.4.2 | ||
| Target Milestone: | --- | ||
| Platform: | Manjaro | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: | Brush stroke that starts aliased, but becomes anti-aliased as it gets smaller. | ||
Hi, What you are seeing is not anti-aliasing, but rather a side effect of our subpixel coordinate system. If you want the edges to be hard, check the 'sharpness' option. https://docs.krita.org/en/reference_manual/brushes/brush_settings/options.html#sharpness Oh, so it would seem. Certainly not an obvious thing; basically getting pixel sharp strokes is a two step process in Krita. I asked on the forum weeks ago and didn't get a response, and I figured it has to be a bug. Glad to see it works after all. |
Created attachment 135292 [details] Brush stroke that starts aliased, but becomes anti-aliased as it gets smaller. SUMMARY When you don't want any anti-aliasing (or should I say, when you want aliasing), and you uncheck "Anti-aliasing" in the brush settings, drawing with the mouse is fine. But drawing with a stylus on a graphics tablet and allowing the pressure to control the size, will introduce anti-aliasing when the brush shrinks below a certain size. This causes pixelated halos when using the fill tool. STEPS TO REPRODUCE 1. Click the "Edit brush settings" icon 2. Uncheck "Anti-alias" 3. Draw on the canvas using a stylus and vary the pressure to control the size OBSERVED RESULT The brush stroke becomes anti-aliased below a certain size. EXPECTED RESULT The brush stroke should never become anti-aliased when anti-alias is unchecked. SOFTWARE/OS VERSIONS Windows: Unknown macOS: Unknown Linux/KDE Plasma: Confirmed (available in About System) KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.79.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION