[Libreoffice-bugs] [Bug 130233] Skia: quality of font rendering to canvas is degraded

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=130233

--- Comment #3 from V Stuart Foote <vstuart.foote at utsa.edu> ---
Created attachment 157484
  --> https://bugs.documentfoundation.org/attachment.cgi?id=157484&action=edit
zip of several screen clips Writer document and UI with Skia-Vulkan and OpenGL

Screen clips from 1920x1080 res monitor, Intel HD Graphics 620 (26.20.100.7584)
Windows 10 1903, Google Roboto regular (unhinted) installed to system.

Pairs of LO with OpenGL v. Skia/Vulkan rendering of the UI.

One set shows smooth Chrome browser rendering of Roboto regular sample text
with LO writer canvas rendering of the same text.

Other set shows LO rendering of document at 250% with the 'Insert' menu
showing.

So, while for the Roboto font, rendering to document canvas is not excessively
different--both renderings are rough--the Skia/Vulkan rendering has line weight
and aliasing issues.

Where differences are quite noticeable is in rendering the LibreOffice user
interface (which IIUC is fully hinted Segoe UI). The labeling of LO menu
entries with Skia/Vulkan at screen resolution is painful.

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