[Fiware-miwi] oulu3d city model

[Philipp Slusallek]

Hi,

Thanks a lot, Toni.

We will definitely give it a try and Torsten can report the results,
once we did. This may also be a data set that we can use for benchmarking.

I actually just tried loading the scene into Blender (Version 266a under
Linux) but did not really know where to start. All the readmes are in
Finnish and the Masterscene file just shows a few markers (but then I am
not a Blender expert either :-). Any hints at how to load the entire
scene into Blender to look at it?

One aspect that we on our side should be looking into a bit more is
support for compressed textures (so they do not get expanded along the
way but are passed through to the HW directly). This is related to the
shading work we are doing right now. Might take a bit to get there,
though. Any ideas Kristian/Felix?

We have some similar models that we used in our XML3D-REPO project, you
can look at them at http://verser2.cs.ucl.ac.uk/xml3drepo/ (this is a
tiny server at UCL, so be careful with it please :-). Works best with
Chrome for me. It should give you a good idea for the rendering
performance of XML3D. Also please keep them confidential.

Not everything in the table works, but you can try some non-trivial
scenes like
-- UT4_Austria
-- Arabic_City
-- Sumerian_City
-- UT4_WildWest
-- UT4_Beijing_B1
-- UT4_IB
-- UT4_Maximus_v1
-- UT4_Poland_B10
-- UT4_Paradise

Within the table you find different versions of the models in various
formats (see the paper at
https://graphics.cg.uni-saarland.de/2013/xml3drepo/).

The default view is often in the middle of the scene: Use the left mouse
button to rotate a bit upwards and then retrat with the right mouse button.

Note that there is no scheduling of the loading yet and that textures
are at the every end right now, so be patient.



Best,

	Philipp

Am 06.09.2013 11:22, schrieb Toni Alatalo:
> (was discussed in the meeting now)
> 
> This is the old small & even optimised version from >year ago, for use
> for first performance tests now:
> http://www.ee.oulu.fi/~antont/download/oulu3dlive-lofi.zip
> 
> There's the source blends, with a Masterscene blend where everything is
> integrated so it's easy to export to whatever you can export to from
> Blender.
> 
> With DDS textures at least, runs fine with Ogre and I think with
> three.js too (others (especially CIE) have done that earlier, we are
> repeating now at Playsign too). Would be really interesting to know how
> xml3d.js runs it so please tell if you test on the DFKI side --
> otherwise we can give it a sho v>
> It is nothing special and also quite small, 9 blocks, with somewhat high
> detail (is an optimised version though for low end machines).
> 
> The new version with some ~30 blocks is being worked on in an SVN now -
> we'll share that later. With that we'll really need managing resources
> sensibly, loading & unloading based on distance/visibility etc., perhaps
> using image placeholders instead of the geometry so much etc.
> 
> This is creative commons material by the Oulu smart city consortium /
> University of Oulu NIMO EU & internal infrastructure projects. Not
> really published for big audiences yet (launch with applications on top
> is being prepared) so not something to publish widely, but is fine to
> use in research and experiments and project protos etc.
> 
> It is Creative Commons share alike so if you somehow improve the
> original base model we ask you to share the improvements.
> 
> ~Ton i
> <
> 
> 
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