On Tue, Aug 10, 2010 at 1:09 PM, Chris Debenham <[email protected]> wrote: > I have been hitting a problem where when displaying a cluttertext > 'some' of the characters do not display. (screenshot attached showing > the problem) > There doesn't seem to be any pattern to the behaviour - and it only > occurs for some people. I haven't found anything in common between > failing systems (ie: distro/libclutter version/graphics drivers) > If it makes any difference the text being displayed is actually a > cluttergroup containing 5 black cluttertexts that create an > outline/shadow and then a white cluttertext over the top of it all. > When the problem occurs the same letter often disappears in all these > independent texts (but not always)
It implies to me that something has gone wrong with the glyph cache. Internally we maintain a texture with pre-rendered glyphs which we texture from when drawing your text. Certainly if you see the same letter disappearing that would imply that glyph has been cleared in the cache but for some reason Cogl doesn't know about it. Have you tried with Clutter master? Failing that it would be interesting if you are able to test the 'wip/pango-share-atlas' branch on clutter-project.org. We are hoping to merge this soon and it changes how we manage the glyph cache to share the code we use for texture atlasing. In general it sounds a bit too random to give much more insight, its quite possible its a driver bug. If you are running with mesa perhaps you can try running with LIBGL_ALWAYS_SOFTWARE=1 in your environment and see if it fixes the issue. kind regards, - Robert _______________________________________________ clutter-app-devel-list mailing list [email protected] http://lists.clutter-project.org/listinfo/clutter-app-devel-list
