<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - Gen4-5 code lost: runtime_check_aads_emit" href="https://bugs.freedesktop.org/show_bug.cgi?id=78679#c18">Comment # 18</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - Gen4-5 code lost: runtime_check_aads_emit" href="https://bugs.freedesktop.org/show_bug.cgi?id=78679">bug 78679</a> from <a class="email" href="mailto:itoral@igalia.com" title="Iago Toral <itoral@igalia.com>"> Iago Toral</a> <pre>(In reply to <a href="show_bug.cgi?id=78679#c17">comment #17</a>) > (In reply to <a href="show_bug.cgi?id=78679#c16">comment #16</a>) > > (In reply to <a href="show_bug.cgi?id=78679#c13">comment #13</a>) > > Could you try the following? > > > > 1. Disable AA only: Remove glEnable(GL_LINE_SMOOTH) > > 2. Disable blending only: remove glEnable(GL_BLEND) > > 3. Disable AA and blending > > 4. Do 1-3 again but removing also glPolygonMode(GL_FRONT, GL_LINE) > > 0. Patched (original): Upper edges interpolate, back face is blue. In ironlake only one of the upper edges interpolates, back face is properly interpolated. > 1. Disable AA only: No interpolation for upper edges, they are blue as the > back face. Same in ironlake, except for the back face that is interpolated. > 2. Disable blending only: Same as 0 (has no effect). > > 3. Disable AA and blending: Same as 1. Same as ironlake (in the sense that they don't seem to affect the results obtained in 0 and 1 respectively) > 4. Disable line front: Interpolates correctly on both sides independent of > other settings. Interesting, looks like the flat rendering of the back face in Gen4 is unaffected by AA and is only related to the selected polygon modes. > Also > > 5. Enable line front and back: Same as 1 for both sides. > > 6. Disable line front, enable line back: Front face is blue, shorter upper > edge is blue, longer upper edge still interpolates. Based on these results there are two issues: 1) In gen4-5: wrong color interpolation of the GL_LINE face of the polygons. 2) In gen4: wrong color interpolation of the GL_FILL face of the polygon when the other face is GL_LINE. These issues seem to exist with and without AA settings in general and seem to be related mostly with the polygon modes. With this info I think I'll send the patches to the mailing list for review since they seem to fix some problems and we should probably leave this bug open to track the remaining problems (or maybe open a new bug since I don't know if these issues existed before 098acf6c84333edbb7b1228545e4bdb2572ee0cd too). Thanks Sergej, that was useful.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>