[osg-users] discontinuity in texture in VPB...

christophe loustaunau christophe.loustaunau at gmail.com
Thu Mar 26 14:10:42 PDT 2009

I have test with svn/trunk version and everything woks fin.


2009/3/24 Robert Osfield <robert.osfield at gmail.com>

> Hi All,
> I've been looking into the problems reported by Shayne right at the start
> of this thread, and with a little help from Christophe's patch have
> pinpointed the problem and resolved it by re-ordering the reprojection and
> destination graph building to avoid the reproject from invalidating the
> internal quad map that vpb::DataSet maintains internally.  This re-ordering
> solves the bug without having to do an costly (in time) patching of the
> quadMap and is more straight forward code was so will be easier to maintain
> thatn Christophe's patch too.
> In testing I also found that the svn/trunk version of GDAL's
> multi-threading warp operation was generating black output images, so I've
> made use of the single threaded version the default which fixes the black
> texture problem.
> Could users who've seen this problem with VPB database check out the
> svn/trunk version of VPB and see how you get on.
> Cheers,
> Robert
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Christophe Loustaunau.
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