Bug 11165

Summary:	Scribus-produced gradients render with moire patterns in evince
Product:	poppler	Reporter:	Nathaniel Smith <njs>
Component:	general	Assignee:	poppler-bugs <poppler-bugs>
Status:	RESOLVED DUPLICATE	QA Contact:
Severity:	normal
Priority:	medium	CC:	njs, sanjoy
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Nathaniel Smith 2007-06-05 21:32:50 UTC

This PDF containing a circular gradient, produced using scribus:
  http://www.cogsci.ucsd.edu/~njsmith/poppler-bug/grad.pdf
Looks like this when rendered with evince 0.8.1 (using poppler 0.5.4, all from debian sid):
  http://www.cogsci.ucsd.edu/~njsmith/poppler-bug/evince-moire.png
I.e., there are horrible aliasing/moire patterns.

When rendered with xpdf (v3.02), the result is beautiful and clean:
  http://www.cogsci.ucsd.edu/~njsmith/poppler-bug/xpdf-clean.png
Spot checks reveal that it also looks perfect in Adobe Reader on Win32 and OSX, and Preview.app on OSX.

In case it is useful for some reason, I also put up the scribus source file:
  http://www.cogsci.ucsd.edu/~njsmith/poppler-bug/grad.sla

(In real life this arose with the background of a presentation I wanted to give via PDF.  Unfortunately, the talk is insufficiently psychedelic to live up to this background.)

Comment 1 Sanjoy Mahajan 2007-06-07 13:27:07 UTC

I can confirm the problem with evince (libpoppler 0.5.4, Ubuntu feisty, i386) and that it looks fine with xpdf 3.02.  It also looks fine with ghostscript (gs 8.54).

Comment 2 Nathaniel Smith 2007-06-29 14:24:11 UTC

This may be related to #10942

Comment 3 Kristian Høgsberg 2007-08-05 07:26:31 UTC


*** This bug has been marked as a duplicate of bug 10942 ***

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