Bug 146105 - Zoom of a complex 3D shape very slow
Summary: Zoom of a complex 3D shape very slow
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: graphics stack (show other bugs)
Version:
(earliest affected)
7.0.0.1 rc
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Performance
  Show dependency treegraph
 
Reported: 2021-12-07 19:13 UTC by Telesto
Modified: 2024-12-29 03:13 UTC (History)
5 users (show)

See Also:
Crash report or crash signature:


Attachments
Example file (21.50 KB, application/vnd.oasis.opendocument.presentation)
2021-12-07 19:14 UTC, Telesto
Details
Example file 2 (17.07 KB, application/vnd.oasis.opendocument.presentation)
2021-12-08 18:55 UTC, Telesto
Details

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Description Telesto 2021-12-07 19:13:32 UTC
Description:
Zoom of a complex 3D shape very slow (Skia Raster and previously GDI)

Steps to Reproduce:
1. Open the attached file
2. Zoom in out (lag) (not rendering each and every zoom frame with CTRL+Scroll wheel would probably improve thinks)
3. Zoom in to 280% and scroll up/down left right (lag)

Actual Results:
Lagging

Expected Results:
Little more speed would be nice


Reproducible: Always


User Profile Reset: No



Additional Info:
Found in
7.4

and in
Version: 7.2.1.0.0+ (x64) / LibreOffice Community
Build ID: 8fdbb8aed1b48734a717d5f98ada566de7204605
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

and in
7.0

and in 
4.4.7.2
Comment 1 Telesto 2021-12-07 19:14:13 UTC
Created attachment 176776 [details]
Example file
Comment 2 Luboš Luňák 2021-12-08 16:52:08 UTC
Nothing to do with Skia, time spent somewhere in drawinglayer.
Comment 3 V Stuart Foote 2021-12-08 17:36:39 UTC
(In reply to Telesto from comment #0)
> 1. Open the attached file
> 2. Zoom in out (lag) (not rendering each and every zoom frame with
> CTRL+Scroll wheel would probably improve thinks)

The rendering speed/buffering for smooth zoom & pan aside, lets not screw with the zoom step behavior for the sd canvas. 

We already have residual of bug 45705 to bring keyboard zoom in/out (via UNO) in line with the Zoom bar and <Ctrl>+MouseWheel controls for Draw & Impress--to match consistent behavior of Writer, Calc and Math.

The zoom steps need to be consistent for all zoom modes, by mouse, zoombar, and keyboard. And, no performance improvement to be found there!
Comment 4 Regina Henschel 2021-12-08 18:49:32 UTC
The problem is, that the object has about 12000 cylinders.
Comment 5 Telesto 2021-12-08 18:55:16 UTC
Created attachment 176819 [details]
Example file 2

(In reply to Regina Henschel from comment #4)
> The problem is, that the object has about 12000 cylinders.

Another example

Pattern fill and hatch still lovely things to generate perf issues.. with 3D objects or fontwork with extrusion enabled
Comment 6 BogdanB 2022-12-29 06:08:48 UTC
We need retesting with attachment from comment 5.
Comment 7 QA Administrators 2024-12-29 03:13:55 UTC
Dear Telesto,

To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information from Help - About LibreOffice.
 
If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


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Warm Regards,
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