Hi Enrico,
Enrico Borrione wrote:
> Hi marcus, hi antonio,
>
> tank for all these suggestions.
> Let me explain a little better the problem.
>
> Right now I have a big scene loaded up inside a
> multiviewport and then shared between various servers.
>
> I'd like to get a very big image of the scene rendered by the front
> server, so I may print it without loosing too much quality. Right now
> the only solution that I've found is to make a copy of all the geometries on
> an
> auxiliary viewport, local on the client machine and then use the tiled
> camera
> to render the huge image.
>
> It works, but it's far from efficient nor fast.
>
> So I was just wondering if there were a way to use the same idea of the
> Tiledcamera + grabforeground directly on the server machines.
>
I see what you want and I can see that it would make sense. You need a
way to transmit all the partial images from teh servers back to the
client and assemble them. The code for that is mostly there, but it's in
the SortLastWindow, and it is not easy to get out.
I can't see an immediate, simple way to do that inside OpenSG, as by
default there is no data coming through the backchannel except the swap
sync. We could consider extending that by making it more of a protocol
with different kinds of messages, but not sure when that would happen.
If you want to you can derive from the MultiViewportWindow and create
one that can feed back the resulting image (optionally). if you do, we'd
be interested. ;)
Yours
Dirk
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