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    <body><span class="vcard"><a class="email" href="mailto:siglesias@igalia.com" title="Samuel Iglesias <siglesias@igalia.com>"> <span class="fn">Samuel Iglesias</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [gen7][gen8] glmark2 -b jellyfish misrendered"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86755">bug 86755</a>
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            <th>What</th>
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           <td>siglesias@igalia.com
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [gen7][gen8] glmark2 -b jellyfish misrendered"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86755#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [gen7][gen8] glmark2 -b jellyfish misrendered"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86755">bug 86755</a>
              from <span class="vcard"><a class="email" href="mailto:siglesias@igalia.com" title="Samuel Iglesias <siglesias@igalia.com>"> <span class="fn">Samuel Iglesias</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=113982" name="attach_113982" title="glmark2 jellyfish vertex shader patch">attachment 113982</a> <a href="attachment.cgi?id=113982&action=edit" title="glmark2 jellyfish vertex shader patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=86755&attachment=113982'>[review]</a>
glmark2 jellyfish vertex shader patch

I confirm that this is happening in SNB (gen6) too.

I modified the jellyfish vertex shader (attached patch) to have the sin()
function argument to be within the range of [0, 2*PI) radians by using the
modulo operation. In this case, it renders fine.

I think this is the same problem explained here:

<a href="http://lists.freedesktop.org/archives/mesa-dev/2014-December/072429.html">http://lists.freedesktop.org/archives/mesa-dev/2014-December/072429.html</a></pre>
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