[Libreoffice-bugs] [Bug 125121] New: Line animation hides background objects

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=125121

            Bug ID: 125121
           Summary: Line animation hides background objects
           Product: LibreOffice
           Version: 6.2.3.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: bugs at mizapf.de

Description:
During wipe animation, a slanted line hides objects behind it with a white
area. In detail, it looks as if the animation "wipes away" the background
object until the animation is over, the background object reappears. 

Steps to Reproduce:
1. Open a new slide.
2. Draw a rectangle. 
3. Draw a diagonal line going through the lower left and the upper right corner
of that rectangle.
4. Assign a "wipe" animation to the line (from left).
5. Start full screen presentation and watch the animation.

Actual Results:
During the animation, the background object is partially or fully obscured
until the animation completes, even in parts that are not visible parts of the
animated object. It looks as if the rectangle is wiped away by the line.

Expected Results:
During the animation, the background objects should remain fully visible,
except for the parts that are visibly obscured by the animated foreground
object.


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Version 6.2.3.2
Build ID: 20(Build:2)
CPU threads: 4; OS: Linux 5.0; UI render: default; VCL:kde5; Locale: en_US
(en_US) [but happens with de_DE as well]; UI language: en_US; Calc: threaded

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