https://bugs.kde.org/show_bug.cgi?id=427831
Bug ID: 427831
Summary: Mirroring tool allows for subpixel placement without
supporting it
Product: krita
Version: 4.3.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Tools
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 132441
--> https://bugs.kde.org/attachment.cgi?id=132441&action=edit
Screenshot showing the mirroring tool effects for different brushes
SUMMARY
Right now Mirroring Tool allows you to set up the mirror line with subpixel
precision, however the tool itself doesn't work with subpixel precision. It
effectively either works as if it was placed before or after the pixel,
depending on where exactly it's placed.
STEPS TO REPRODUCE
1. Try to move the mirroring tool into 1/4 and later 3/4 of the pixel.
2. Try to paint (you can use Pixel Art brushes or any Pixel Brush; Quick Brush
Engine will work in a different way).
OBSERVED RESULT
Mirroring tool does allow for subpixel placement, but it doesn't take that
placement into account and still uses imaginary placement between pixels.
EXPECTED RESULT
Mirroring tool snaps to placements between pixels, showing that subpixel
precision is not possible.
ADDITIONAL INFORMATION
When fixing this bug, please take a note of bug 427829 which is a wish to make
mirroring tool work with specifically half-pixel precision (not all subpixel,
just half).
SOFTWARE/OS VERSIONS
Krita
Version: 4.4.0
Languages: en_US, en, en_US, en, en_US, en, pl_PL, pl, pl_PL, pl
Hidpi: true
Qt
Version (compiled): 5.12.9
Version (loaded): 5.12.9
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