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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - gl_BaseVertex should always be zero when the draw command has no <basevertex> parameter"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102678#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - gl_BaseVertex should always be zero when the draw command has no <basevertex> parameter"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102678">bug 102678</a>
from <span class="vcard"><a class="email" href="mailto:idr@freedesktop.org" title="Ian Romanick <idr@freedesktop.org>"> <span class="fn">Ian Romanick</span></a>
</span></b>
<pre>glDrawArrays behaves as if you did
unsigned indices[count];
for (i = 0; i < count; i++)
indices[i] = first + count;
glDrawElements(mode, count, GL_UNSIGNED_INT, indices);
The language in the spec is a bit more complicated than that, IIRC, but it
should be equivalent. I think gl_BaseVertex=0 and gl_VertexID=first+i is
consistent with that.</pre>
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