[Paraview-developers] Changing ParaView default CMake variable values

[Ken Martin]

I have a OpenGL2 document I try to keep up to date here

https://docs.google.com/document/d/1ojY_20mQbRyCfmgxe-LuPKi82x3XwPlU_KfFLeJoBvo/edit#heading=h.a92mikls63mw

I could probably be expanded some. The section on compatibility is
currently as follows:


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.

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.

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.

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.


On Wed, Aug 24, 2016 at 9:36 AM, Schlottke-Lakemper, Michael <
m.schlottke-lakemper at aia.rwth-aachen.de> wrote:

> Hi Utkarsh,
>
> 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 http://www.paraview.org/
> Wiki/ParaView:Build_And_Install and there no OpenGL dependencies are
> listed explicitly.
>
> Regards,
>
> Michael
>
>
> --
> Michael Schlottke-Lakemper
>
> Institute of Aerodynamics and Chair of Fluid Mechanics
> RWTH Aachen University
> Wüllnerstraße 5a
> 52062 Aachen
> Germany
>
> Phone: +49 (241) 80 95188
> Fax: +49 (241) 80 92257
> Mail: m.schlottke-lakemper at aia.rwth-aachen.de
> Web: http://www.aia.rwth-aachen.de
>
> On 24 Aug 2016, at 15:09 , Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
> wrote:
>
> Folks,
>
> I wanted to propose changing the defaults for the following CMake
> variables in ParaView:
>
> VTK_RENDERING_BACKEND = OpenGL2 (currently OpenGL1)
> VTK_ENABLE_KITS = ON (currently OFF)
>
> The former will use the new rendering backend. The latter will build
> fewer libraries since multiple VTK modules gets built as a single kit
> library.
>
> Thoughts? Any other suggestions?
>
> Utkarsh
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-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
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