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From: | Pantxo Diribarne |
Subject: | [Octave-bug-tracker] [bug #45494] Patches have spurious (antialising) lines in vector printout |
Date: | Tue, 18 Jul 2017 17:15:11 -0400 (EDT) |
User-agent: | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 |
Follow-up Comment #21, bug #45494 (project octave): @Dan: >> Can we pin-point where exactly the issue is? It's a lot of work to build OpenGL/Mesa from scratch and convince developers there is something to fix. I think there is nothing to fix on the mesa side: the on-screen and raster offscreen images don't show these artificial lines. AFAIU it is pdf/eps rasterization libraries that need a fix: you could try to find how to implement a better anti-aliasing algorithm (that doesn't take background colors into account when two foreground polygons, triangles or not, are adjacent) and submit it to libpoppler/xpdf developpers. >> Is there the possibility of "covering-up" the tessellation lines by drawing lines the same color as the patch after the convex shapes have been drawn? How would you handle two adjacent polygons with different colors? _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?45494> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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