Bug 137728 - Area transparency doesn't seem to work properly with glow effect on
Summary: Area transparency doesn't seem to work properly with glow effect on
Status: RESOLVED NOTABUG
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
7.1.0.0.alpha0+
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: needsUXEval
Depends on:
Blocks:
 
Reported: 2020-10-25 09:00 UTC by Telesto
Modified: 2020-10-25 09:42 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:

Attachments
Example file (18.48 KB, application/vnd.oasis.opendocument.presentation)
2020-10-25 09:00 UTC, Telesto 		Details
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Description Telesto 2020-10-25 09:00:43 UTC 
Description:
Area transparency doesn't seem to work properly with glow effect on

Steps to Reproduce:
1. Open the attached file
2. Select the fontwork
3. Properties deck -> Drag the transparency slider for 'area'

Actual Results:
Everything getting orange (because of glow effect)

Expected Results:
More transparent (don't glow so interact with area)


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.1.0.0.alpha0+ (x64)
Build ID: 94e6e140491de31c0788c91af855a75a3bb12709
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: default; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL
Comment 1 Telesto 2020-10-25 09:00:56 UTC 
Created attachment 166686 [details]
Example file
Comment 2 Telesto 2020-10-25 09:10:10 UTC 
Not sure if this belongs to UX or being simply a bug
Comment 3 Mike Kaganski 2020-10-25 09:42:07 UTC 
Glow treats any part of image that is not *fully* transparent as the source of glow. Glow intensity does not depend on "intensity" of the source. Glow intensity only fades in the areas outside of the source. That's how it works in the MSO, which was used as model for implementation.

NOTABUG.