Bug 143576 - Red hatch has faded colors in Skia/GTK3 for a sphere (3D object). Anti-aliasing involved
Summary: Red hatch has faded colors in Skia/GTK3 for a sphere (3D object). Anti-aliasi...
Status: UNCONFIRMED
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
Inherited From OOo
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-07-28 09:14 UTC by Telesto
Modified: 2021-08-05 18:30 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


Attachments
Comparison Screenshot (204.99 KB, application/pdf)
2021-07-28 09:14 UTC, Telesto
Details

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Description Telesto 2021-07-28 09:14:12 UTC
Description:
Red hatch has faded colors in Skia/GTK3 compared to GDI for a sphere (3D object). GDI matches my expectations

Steps to Reproduce:
1. Open attachment 173897 [details] (on Windows with Skia)
2. Press F5.. 
3. Switch to GDI and press F5 again.. compare

Actual Results:
Faded colers

Expected Results:
GDI looks


Reproducible: Always


User Profile Reset: No



Additional Info:
Found in
Version: 7.3.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: 2a151d1d5bc055d5e0011460b6ec42ea9f34f880
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL

Fine in
Version: 7.0.0.0.beta1+ (x64)
Build ID: 2891e91a513520d68ea2b8c59c14335861a15253
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL
Comment 1 Telesto 2021-07-28 09:14:33 UTC
Created attachment 173908 [details]
Comparison Screenshot
Comment 2 Buovjaga 2021-08-04 16:03:30 UTC
There is a new crash regression for this file: bug 143728
Comment 3 Telesto 2021-08-05 17:53:34 UTC
Hmm.. apparently anti-aliasing being responsible for the color shift. Turned off it's OK. Turned on it's getting bad
Comment 4 Buovjaga 2021-08-05 18:16:40 UTC
(In reply to Telesto from comment #3)
> Hmm.. apparently anti-aliasing being responsible for the color shift. Turned
> off it's OK. Turned on it's getting bad

So is it really a regression or a case of the setting with different versions you tried? I didn't see any difference when aliasing was on in 7.0 repo oldest
Comment 5 Telesto 2021-08-05 18:30:06 UTC
(In reply to Buovjaga from comment #4)
> So is it really a regression or a case of the setting with different
> versions you tried? I didn't see any difference when aliasing was on in 7.0
> repo oldest

Well you're right.. Also seen in
LibreOffice 3.5.7.2 
Build ID: 3215f89-f603614-ab984f2-7348103-1225a5b