Hi Chris, The ImageLayer is part of osgTerrain, and just wraps up an osg::Image with geospatial coords to place it in the correct place on the terrain. At runtime osgTerrain actually creates an osg::Texture2D for each ImageLayer, but this is not something that is saved to disk, as the ImageLayer is sufficient for all of this.
VirtualPlanetBuilder now defaults to build osgTerrain::TerrainNode and accompanying osgTerrain::ImagerLayers, but it's still possible to force VPB to build osg::Geometry/osg::StateSet based databases by using the --polygonal command line option in osgdem/vpbmaster. As for adding support for exporting the image files in osgTerrain databases written to .osg, or even .ive, this would sensible. Robert. On Tue, Sep 29, 2009 at 9:11 PM, Chris 'Xenon' Hanson <xe...@alphapixel.com> wrote: > Paul Martz wrote: >> So it looks like if you "osgconv -O OutputTextureFiles in.ive out.osg" >> that should do the trick. > > Thanks for that tip. "It would have worked too, if it weren't for you > meddling kids!" > Oh, sorry, wrong script. > > I beat my forehead a bit on this because it wasn't working, and finally put > some > breakpoints in the .OSG Texture2D saver, only to find the OutputTextureFiles > option code > in Texture2D was never hit. Turns out, some dissection of the OSGDEM-created > .osg scene > file shows it does not use a Texture2D object, it uses something known as > ImageLayer. The > .osg output code for ImageLayer (in osgPlugins/osgTerrain/ImageLayer.cpp, > ImageLayer_writeLocalData() ) does not support the OutputTextureFiles option. > > I confess I'm not really familiar with why ImageLayer is unrelated to > Texture2D (it > seems like one would be a subclass of the other). > > My goal at this point is to try to migrate the OutputTextureFiles support > from Texture2D > to ImageLayer, if that's something Robert feels is appropriate? > > So, apparently no one has ever tried using the OutputTextureFiles on > OSGDEM/VPB terrain > databases or they'd have noticed it was unimplemented. ;) > >> Paul Martz >> Skew Matrix Software LLC >> _http://www.skew-matrix.com_ <http://www.skew-matrix.com/> >> +1 303 859 9466 > > > -- > Chris 'Xenon' Hanson, omo sanza lettere Xenon AlphaPixel.com > PixelSense Landsat processing now available! http://www.alphapixel.com/demos/ > "There is no Truth. There is only Perception. To Perceive is to Exist." - Xen > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
