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Thanks for the hint! “glxinfo | grep -i version” did the trick for me.
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<div class="">Regards,</div>
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<div class="">Michael</div>
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<div class="">P.S.: Unfortunately, for our cluster OpenGL 3.0 seems to be the norm, so I guess I will have to explicitly disable the new backend starting with 5.2.0…</div>
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<blockquote type="cite" class="">
<div class="">On 30 Aug 2016, at 15:00 , Ken Martin <<a href="mailto:ken.martin@kitware.com" class="">ken.martin@kitware.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div dir="ltr" class="">It is a little tricky as I think the answer is a combination of your hardware and your software. I'm not the best Linux person around so maybe someone else has a better answer. From a live system point of view I believe glxinfo will
report the GL_VERSION your system supports. So anything 3.2 or later should be good for your default OpenGL. OSMesa is I think a bit different as I do not think glxinfo picks that up.
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</div>
<div class="">I have seen good results with the nvidia linux drivers on hardware from the past 5 years.</div>
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</div>
<div class="">One other gotcha that has bitten us, is that there is an SGI patent that impacts Mesa's support for floating point textures. So some distros ship a version of Mesa that does not include floating point textures. This can cause issues depending
on what you are rendering.</div>
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<div class="">Hope that helps</div>
<div class="">Ken</div>
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<div class="gmail_quote">On Mon, Aug 29, 2016 at 11:36 AM, Schlottke-Lakemper, Michael
<span dir="ltr" class=""><<a href="mailto:m.schlottke-lakemper@aia.rwth-aachen.de" target="_blank" class="">m.schlottke-lakemper@aia.rwth-aachen.de</a>></span> wrote:<br class="">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word" class="">Hi Ken,
<div class=""><br class="">
</div>
<div class="">Thanks for your reply. This is going to be an issue for us (as expected), as a quick check reveals that we use an older Version of OS Mesa on our cluster (of course, this can and will be changed eventually). Do you know if there an easy way to
check if my hardware/Linux distro supports OpenGL 3.2 (we are using openSUSE)?</div>
<div class=""><br class="">
</div>
<div class="">Yours</div>
<div class=""><br class="">
</div>
<div class="">Michael</div>
<div class=""><br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On 24 Aug 2016, at 16:19 , Ken Martin <<a href="mailto:ken.martin@kitware.com" target="_blank" class="">ken.martin@kitware.com</a>> wrote:</div>
<br class="">
<div class="">
<div dir="ltr" class="">I have a OpenGL2 document I try to keep up to date here
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</div>
<div class=""><a href="https://docs.google.com/document/d/1ojY_20mQbRyCfmgxe-LuPKi82x3XwPlU_KfFLeJoBvo/edit#heading=h.a92mikls63mw" target="_blank" class="">https://docs.google.com/<wbr class="">document/d/1ojY_20mQbRyCfmgxe-<wbr class="">LuPKi82x3XwPlU_KfFLeJoBvo/<wbr class="">edit#heading=h.a92mikls63mw</a></div>
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</div>
<div class="">I could probably be expanded some. The section on compatibility is currently as follows:
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</div>
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</div>
<div class=""><span class="">
<div style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" class=""><span style="font-size:14.6667px;font-family:Arial;vertical-align:baseline;white-space:pre-wrap;background-color:transparent" class="">The new OpenGL2 backend typically requires OpenGL
3.2. Most hardware from 2010 or later should support OpenGL 3.2. For Linux systems that lack hardware support for OpenGL3.2, Mesa version 10.5.5 and later has been shown to work with VTK. OS Mesa requires version 11.2.</span></div>
<br class="">
<div style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" class=""><span style="font-size:14.6667px;font-family:Arial;vertical-align:baseline;white-space:pre-wrap;background-color:transparent" class="">Apple Mac Pro with AMD Graphics Chips - there is/was
a bug in some ATI drivers that causes picking and cell coloring to fail as of March 19th 2015. We have coded a workaround for the bug but it does impact performance significantly on Apple systems with AMD hardware. We have worked with Apple to fix the bug
in El Capitan for most AMD cards they use.</span></div>
<br class="">
<div style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" class=""><span style="font-size:14.6667px;font-family:Arial;vertical-align:baseline;white-space:pre-wrap;background-color:transparent" class="">Windows remote desktop only supports OpenGL version
1.4, the new backend will not work with this. Other options like VNC and nomachine should work.</span></div>
<br class="">
<div style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" class=""><span style="font-size:14.6667px;font-family:Arial;vertical-align:baseline;white-space:pre-wrap;background-color:transparent" class="">Windows computers that DO NOT have an NVidia or AMD
GPU will rely on their Intel GPU if present. Desktop and laptop Intel CPUs from IvyBridge (early 2012) or later should be fine as long as your drivers are up to date. Most Intel Xeon CPUs lack a GPU and some workstation CPUs (6 cores or more) do as well. In
those cases you would need a dedicated GPU.</span></div>
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<div class="gmail_extra"><br class="">
<div class="gmail_quote">On Wed, Aug 24, 2016 at 9:36 AM, Schlottke-Lakemper, Michael
<span dir="ltr" class=""><<a href="mailto:m.schlottke-lakemper@aia.rwth-aachen.de" target="_blank" class="">m.schlottke-lakemper@aia.<wbr class="">rwth-aachen.de</a>></span> wrote:<br class="">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word" class="">Hi Utkarsh,
<div class=""><br class="">
</div>
<div class="">Especially with the first change (rendering backend upgraded to OpenGL2) I suspect that some users might have builds fail because of missing dependencies on older systems (at least I expect it for some of our systems). Is there somewhere a list
of library prerequisites that will change with this switch? I only know of <a href="http://www.paraview.org/Wiki/ParaView:Build_And_Install" target="_blank" class="">http://www.paraview.org/Wik<wbr class="">i/ParaView:Build_And_Install</a> <wbr class="">and
there no OpenGL dependencies are listed explicitly.</div>
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</div>
<div class="">Regards,</div>
<div class=""><br class="">
</div>
<div class="">Michael</div>
<div class=""><br class="">
</div>
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<span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;border-spacing:0px" class="">
<div style="word-wrap:break-word" class=""><span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;border-spacing:0px" class="">
<div style="word-wrap:break-word" class="">--<br class="">
Michael Schlottke-Lakemper<br class="">
<br class="">
Institute of Aerodynamics and Chair of Fluid Mechanics<br class="">
RWTH Aachen University<br class="">
Wüllnerstraße 5a<br class="">
52062 Aachen<br class="">
Germany<br class="">
<br class="">
Phone: <a href="tel:%2B49%20%28241%29%2080%2095188" value="+492418095188" target="_blank" class="">
+49 (241) 80 95188</a><br class="">
Fax: <a href="tel:%2B49%20%28241%29%2080%2092257" value="+492418092257" target="_blank" class="">
+49 (241) 80 92257</a><br class="">
Mail: <a href="mailto:m.schlottke-lakemper@aia.rwth-aachen.de" target="_blank" class="">
m.schlottke-lakemper@aia.rwth-<wbr class="">aachen.de</a><br class="">
Web: <a href="http://www.aia.rwth-aachen.de/" target="_blank" class="">http://www.aia.rwth-aachen.de</a></div>
</span></div>
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<blockquote type="cite" class="">
<div class="">On 24 Aug 2016, at 15:09 , Utkarsh Ayachit <<a href="mailto:utkarsh.ayachit@kitware.com" target="_blank" class="">utkarsh.ayachit@kitware.com</a>> wrote:</div>
<br class="">
<div class="">Folks,<br class="">
<br class="">
I wanted to propose changing the defaults for the following CMake<br class="">
variables in ParaView:<br class="">
<br class="">
VTK_RENDERING_BACKEND = OpenGL2 (currently OpenGL1)<br class="">
VTK_ENABLE_KITS = ON (currently OFF)<br class="">
<br class="">
The former will use the new rendering backend. The latter will build<br class="">
fewer libraries since multiple VTK modules gets built as a single kit<br class="">
library.<br class="">
<br class="">
Thoughts? Any other suggestions?<br class="">
<br class="">
Utkarsh<br class="">
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-- <br class="">
<div data-smartmail="gmail_signature" class="">Ken Martin PhD
<div class="">Chairman & CFO<br class="">
Kitware Inc.<br class="">
28 Corporate Drive<br class="">
Clifton Park NY 12065<br class="">
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<div class="gmail_signature" data-smartmail="gmail_signature">Ken Martin PhD
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