Re: [osg-users] "Tiling" data

2010-09-20 Thread Grahame Bowland
Hi Robert I've had a look at OSG's databases. I'm extracting 2D slices from a 3D database. I can't change the data storage method used for the 3D data, and I want to avoid any preparation stage that would require duplicating all the data in another format. Once I've extracted a 2D slice I need to

Re: [osg-users] "Tiling" data

2010-09-20 Thread Robert Osfield
Hi Grahame, Are you aware of VirtualPlanetBuilder and osgEarth? They both provide support for taxing high res imagery and generating OSG databases from them. VirtualPlanetBuilder is an offline too, while osgEarth can do it at runtime. Robert. On Mon, Sep 20, 2010 at 7:14 AM, Grahame Bowland w

[osg-users] "Tiling" data

2010-09-19 Thread Grahame Bowland
Hi all I'm wondering if anyone could give me some advice - I'm working on a 3D viewer application that makes use of OpenSceneGraph. At the moment I'm loading large 2D slices of data into textures, and then using a fragment shader to colourise them. The slices of data are big (up to 150MB), and co