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Bug 688672 - Rotate operation renders with artifacts
Rotate operation renders with artifacts
Status: RESOLVED FIXED
Product: GEGL
Classification: Other
Component: operations
0.2.0
Other All
: Normal normal
: ---
Assigned To: Default Gegl Component Owner
Default Gegl Component Owner
Depends on:
Blocks:
 
 
Reported: 2012-11-19 19:33 UTC by Max Mustermann
Modified: 2013-04-20 23:51 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
Demonstration (47.59 KB, image/png)
2012-11-19 19:33 UTC, Max Mustermann 		Details
Demonstration (2) (21.56 KB, image/png)
2012-11-23 07:09 UTC, Max Mustermann 		Details

Description Max Mustermann 2012-11-19 19:33:27 UTC 
Created attachment 229400 [details]
Demonstration

How to reproduce: 
1. In GIMP 2.8.2 call Tools/GEGL operations.../rotate.
2. Check the 'Preview' checkbox to enable previews.
3. Increase the degrees value with the spinbuttons.

Expected result: 
The image or the selected part of the image is rotated with no artifacts.

Actual result:
The image or the selected part of the image is rotated. The rendered result contains artifacts, see attachment.

I tested on Linux, Windows and Mac OS X. It's always reproducible.
Comment 1 Øyvind Kolås (pippin) 2012-11-21 00:32:02 UTC 
The code involved in rotation has recently changed, does this artifact also occur with a fully up to date version of GEGL built from git master?
Comment 2 Max Mustermann 2012-11-23 07:09:32 UTC 
Created attachment 229697 [details]
Demonstration (2)

I just tried to reproduce on Win7 with the latest master build from 20.11.2012, but it doesn't contain the Rotate operation in GEGL operations anymore.
Then I tested with the stable 2.8.2 nightly build from 20.11.2012, but it has become worse, see attachment. The artifacts remain after confirming the dialog.
Comment 3 Nicolas Robidoux 2013-04-20 23:51:33 UTC 
I have not seen artifacts in recent versions of the tools.