[Paraview] Inconsistent client view in tiled-display mode

Thu Aug 26 07:55:08 EDT 2010

Un-check the checkbox to the left and the client should get the full res
geometry too.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109

On Thu, Aug 26, 2010 at 7:50 AM, Stephane PLOIX <stephane.ploix at edf.fr>wrote:

>
> Hi,
>
> Since this thread is started, I would like to point out that saying that
> display walls are only used if the data size is large is not true for
> everybody.
>
> We have several use cases where having a correct rendering on the client
> would be helpfull :
> * display walls can be used for team meetings : the space is then used to
> have several people view the same thing, not always very big in terms of
> number of cells. In this case, it is very usefull to have the possibility to
> pick/select some part of an object, and it is very diffcult to do so with a
> decimated view.
> * we also use some tools like virtualGL that enable image-based
> collaboration by streaming the image of the client to a remote viewer : for
> instance if someone was not able to join the meeting and still want to
> participate and share the same view on his desktop. Sending a view of a
> decimated object is not very helpfull...
>
> I would vote for having the possibility to have a full-resolution view on
> the client, comments?
>
> Best,
> Stephane
>
>
>       *Stephane PLOIX**
> Pilote Opérationnel - Visualisation scientifique*
> EDF - R&D
> SINETICS
> 1, Av du Général de Gaulle
> 92140 Clamart
>
> *stephane.ploix at edf.fr*
> Tél. : +33 (0) 1 47 65 51 10   Un geste simple pour l'environnement,
> n'imprimez ce message que si vous en avez l'utilité.
>
>
>
>  *dave.demarle at kitware.com*
> Envoyé par : paraview-bounces at paraview.org
>
> 26/08/2010 13:14
>   A
> c.willing at uq.edu.au
>  cc
> paraview at paraview.org
> Objet
> Re: [Paraview] Inconsistent client view in tiled-display mode
>
>
>
>
> This is probably intended behavior. What is the setting of the "Client
> Collect" slider on the "Options"||"Preferences"->"Render
> View"->"Server"->"Tile Display Parameters" tab of the Options panel?
> Unless its checkbox is unchecked, ParaView either decimates the
> geometry before sending it to the client or if larger than the
> threshold, sends only bounding boxes. The reasoning being that if the
> rendered geometry is big enough to require a tiled display to show, a
> single GPU on the client is unlikely to be able to handle it a full
> resolution.
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 28 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-371-3971 x109
>
>
>
> On Thu, Aug 26, 2010 at 2:50 AM, Christoph Willing <c.willing at uq.edu.au>
> wrote:
> > When running in tiled display mode, the view at the client is sometimes
> > missing part of the geometry.
> >
> > The effect appears to differ according to the number of tiles in play. As
> an
> > example just to demonstrate the effect:
> > - with a 4x4 tiling, a simple cylinder with no capping starts losing bits
> of
> > the cylinder when resolution setting is at 17. With a 4x5 tiling,
> distortion
> > starts when resolution is 61. I have snapshots to show the effect at:
> >    http://www.vislab.uq.edu.au/research/paraview/missingbits.html
> >
> > Of course it starts looking pretty bad with a real, more complicated,
> > visualisation.
> >
> > Just to reiterate, this effect is just in the client viewer. The
> rendering
> > on the tiled display itself is perfect.
> >
> > Is this a known phenomenon?
> >
> >
> > chris
> >
> > (I'm running 3.8.0 built from tarball at paraview website).
> >
> >
> > Christoph Willing                       +61 7 3365 8316
> > QCIF Access Grid Manager
> > University of Queensland
> >
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