Created attachment 129778 [details] Screenshot showing the issue Please, check the attached image for an illustration of the rendering issues. The problem is present in 5.2.4.1 RC 1. Seen on Linux (ubuntu 16.04 xenial) with intel graphics (haswell) and latest intel drivers. Seen with impress and draw. Note that the issue is due to rendering and not to the image itself. In fact, the rendering artifacts change with the zoom level and disappear in presentation mode. The issues do not go away by disabling hardware acceleration or OpenGL rendering (that is said to be always disabled anyway). The issue goes away by disabling antialiasing. The issue does not seem to be present in 5.3 beta 2.
Created attachment 129779 [details] Image to open to reproduce the issue This is a PDF image. However, the issue is not with importing the image, rather with rendering it. This is shown by the fact that the artifacts change as the zoom level is changed and disappear when the image is pasted into a presentation and shown in presentation mode.
I confirm and confirmed it is fixed in a newer branch. Let's close and add backportRequest and other magical utterances.
Created attachment 143673 [details] sample file
Created attachment 143674 [details] Rendering issue with the sample file
Reopened the issue is still present (maybe more subtle) and has been so through the whole of LibO releases up to 6.1 that is still affected. Even if the original test case does not anymore show the issue, the new one shows exactly the same problem. With metafiles, at some zoom factors areas of the picture that should be blank get incorrectly filled. As before, the issue goes away by disabling antialiasing.
As the issue is something different, we should open a new report for it, if I can confirm. Please, give me exact zoom percentages where you see the problem. I think I saw it on first opening with 6.0.5, but could not find the right zoom % afterwards.