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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Blender Weight paint mode doesn't work with enabled VBOs."
href="https://bugs.freedesktop.org/show_bug.cgi?id=83810">83810</a>
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</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>Blender Weight paint mode doesn't work with enabled VBOs.
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>sunweb@hotmail.ru
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>10.1
</td>
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<th>Component</th>
<td>Drivers/Gallium/r600
</td>
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<th>Product</th>
<td>Mesa
</td>
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<p>
<div>
<pre>HD 5770, OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.1.3
Download and unpack Blender from here <a href="http://www.blender.org/download/">http://www.blender.org/download/</a> or
install from your distrution repository.
Exact steps to reproduce the error:
1) Open Blender and go to File -> User Preferences -> System OR press
Ctrl+Alt+U and enable VBOs
2) Go to Edit mode(press Tab) on a default cube and for clear look for both
problems(unable to paint and slowdowns) subdivide it atleast a few times(press
W -> F6 -> Number of cuts 50*).
3) Go to Weight Paint mode(press Tab -> Ctrl+Tab) and make a stroke, you won't
see anything painting and experience slowdowns.
4) Disable VBOs and repeat 2 and 3 steps and everything works and really fast
then switch on VBOs again and your paint will disappear but turning off VBOs
again will show the one you draw before.
* depending on your GPU the number might be higher. For example on my GPU 20
cuts on a cube won't show any performance decrease with VBOs on thus i am using
50 for more clear look at performance problem.
As described by many users VBOs should make everything faster not slower. And
i've checked proprietary drivers VBOs work there but i have different troubles
with them thus i am using the OSS one that has a very few non crucial broken
features.</pre>
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