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------- Additional comments from a...@openoffice.org Mon Jan 31 15:30:01 +0000 2011 ------- I just had a look at this document (to test another issue). I found that a large part of this problem is the huge number of shadow primitives. About 110000 2D polygon primitives are created for the monochrome shape area. It takes a lot of time just to delete this number of primitives when I switch to another slide. With this many polygons to render, antialiasing may add its share to the time it takes to render the slide. I am not sure how this can be fixed, though. Joining all shadow polygons with our current O(n^2) algorithm would make the problem worse. Even an optimized O(n log n) algorithm may not improve the overall time to create the primitives for the shadow. Better and easier to implement might be to create one primitive with 110000 polygons instead of 110000 primitives with one polygon each, both with respect to memory consumption and to render time. --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@graphics.openoffice.org For additional commands, e-mail: issues-h...@graphics.openoffice.org --------------------------------------------------------------------- To unsubscribe, e-mail: allbugs-unsubscr...@openoffice.org For additional commands, e-mail: allbugs-h...@openoffice.org
