[Paraview] Inconsistent client view in tiled-display mode

[David E DeMarle]

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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