David,
Maybe there are some version related differences involved here - I
found a Client Collect checkbox & slider in Edit->Settings->Render
View->Server->Tiled Display Parameters. However unchecking it and then
changing some object parameter to force a re-render makes no
difference to the client view here.
I appreciate the logic behind decimating the client view but, as
Stephane already mentioned, there are use cases where its not helpful.
We have a similar use requirement to Stephane - needing to stream a
lower res version. It would be great if the Client Collect checkbox
would work as you suggest. Should I try a different version? I'm
currently on a Linux build from the 3.8.0 source tarball.
chris
On 26/08/2010, at 9:55 PM, David E DeMarle wrote:
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
<[email protected]> 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
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Stephane PLOIX
Pilote Opérationnel - Visualisation scientifique
EDF - R&D
SINETICS
1, Av du Général de Gaulle
92140 Clamart
[email protected]
Tél. : +33 (0) 1 47 65 51 10
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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 <[email protected]
> 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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