https://bugs.kde.org/show_bug.cgi?id=439156
Bug ID: 439156
Summary: Diagonal lines produce aliasing at certain zoom level
Product: krita
Version: nightly build (please specify the git hash!)
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: major
Priority: NOR
Component: OpenGL Canvas
Assignee: krita-bugs-n...@kde.org
Reporter: thequ...@gmail.com
Target Milestone: ---
Created attachment 139660
--> https://bugs.kde.org/attachment.cgi?id=139660&action=edit
The scale of example images is original (as on monitor)
SUMMARY
Images display incorrectly at certain zoom levels
The bug persists in Krita 4.4.3, krita-nightly-x64-5.0.0-prealpha-583a1a7a36
nightly build and also other builds that I've tested
STEPS TO REPRODUCE
1. Create a 128x128px image
2. Draw a sharp diagonal line
3. Set zoom to 282% (or 282.8% by default)
4. You can see as line distorts at this zoom level
(My display resolution is 1366x768 if it matters to reproducing)
OBSERVED RESULT
See an attachment
EXPECTED RESULT
The line displayed without aliasing
SOFTWARE/OS VERSIONS
Windows: 10
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
Sometimes you can see this effect on different zoom levels (for example at
66.7% zoom)
Panning the canvas doesn't change aliasing pattern
Disabling hardware acceleration or switching Angle to OpenGl doesn't affect the
bug
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