[Paraview-developers] Paraview architecture

[Joachim Pouderoux]

Boris,

In the 3D View, and depending on the Render View settings, the client may
render the geometry (that is the external surface) of the datasets that it
receives from the server using OpenGL, or it can receive and display the
images (remote rendering) generated by the server. With the first mode, the
interaction is performed locally with some VTK graphical pipelines (camera,
interactors, rendere, etc.); when the rendering is performed remotely, the
client sends the local camera properties to the server so it can generate
images from the correct viewpoint.

So depending the mode, the raw surface geometry can be transfered or some
compressed images (different compression techniques are available, see
Settings / Render View panel).

Some other views (eg. 2D plots) may have different behaviour and might
require the full dataset to be transfered from the server to the client for
display/analysis (in this case, this will not scale of course : eg. if you
plot a huge UnstructuredGrid within a Line Plot view after applying the
Plot Data filter)...

Hope it helps,

Joachim

*Joachim Pouderoux*

*PhD, Technical Expert*
*Kitware SAS <http://www.kitware.fr>*


2014-11-24 12:17 GMT+01:00 Boris Bobrov <breton at cynicmansion.ru>:

> Hello,
>
> I am trying to understand the architecture of paraview and it's dataflow.
>
> 1. What kind of rendering happens on client side? What rendering does
> default paraview client perform? Does it use OpenGL or something? What
> happens when I drag an image in the client?
>
> 2. What kind of data flows between a client, a data server and a rendering
> server? What's the format?
>
> I tried to search the wiki but either I am a bad lurker or it's not there.
> I am also not sure which mailing list to use, so I'll send this email to
> both.
> --
> WBR,
> Boris
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>
>
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