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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - UBO matrix in std140 struct does not work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82586#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - UBO matrix in std140 struct does not work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82586">bug 82586</a>
from <span class="vcard"><a class="email" href="mailto:pavol@klacansky.com" title="pavol@klacansky.com">pavol@klacansky.com</a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=82586#c3">comment #3</a>)
<span class="quote">> You say it doesn't work. That's pretty vague. If it fails in some way,
> what is the mode of the failure? (See also
> <a href="http://en.wikipedia.org/wiki/Failure_causes#Component_failure">http://en.wikipedia.org/wiki/Failure_causes#Component_failure</a>)</span >
It just does not display anything, hence either whole pipeline crashes (and
OpenGL KHR_debug does not print it out) or the transform moves vertices outside
clipping region (I might try transform feedback over weekend).
<span class="quote">> Are the member locations incorrect (query through the API)? Is the
> row-major / column-major orientation of the matrices incorrect (query
> through the API)? Is the generated code reading the wrong locations? Does
> it crash in the driver? Does your computer catch on fire?</span >
Locations are correct (at least if gl query returns them properly). I do not
know, I do not read anything (or I do not follow). How do I know if it crashes
in driver? No, though DPM is really bad.
<span class="quote">> Without any information about how it actually fails, it's pretty much
> impossible to fix.</span >
If I apply one of the matrices, it works, if I multiply two of them, it does
not.
<span class="quote">> When I check it now, it should have everything. The other question: does
> this work on older Mesa? Say... a 10.2 stable release?</span >
Yes, it works on 10.2.5
<span class="quote">> You can... at some point there will probably be a patch for you to test, and
> that won't be in PPA. You can probably wait to worry about it until such a
> patch exists.</span >
Ok, hope the process is seamless.</pre>
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