Hi Christian, If you're looking for a way to view terrain data on the fly without VPB preparation, you can check out osgEarth at http://www.osgearth.org. It has a GDAL driver that should read your raster files and display them on the fly.
Thanks! Jason On Mon, Feb 23, 2009 at 2:27 PM, Christian Sam <osgfo...@tevs.eu> wrote: > hi > > i would like to get a better understanding of osg's various possibilities > in terrain-visualization. currently i'm using osggis/virtualplanetbuilder to > display georeferenced, common gis rasterfiles which work wonderful. but as > an osg-newbie i also would like to know what are the approaches of basic > terrain handling of osggis' underlying osg. > > what i know/suppose so far: > > * according to the "osgforest" example, the most basic method seems to be > using osg::Geometry, attach a vertex-/texturecoord array and draw as indiced > DrawElement primitiveset. > > * the other possibility seems to be osg:HeightField, which is less code > than the above one, as well i can omit texturecoordinates (at least > according to the example) because of its regular grid characteristic. > > > > what i would like to know: > > * are these assumptions right? > > * are there other terrain related possibilities? > > * i also have read about osgTerrain, but when i start the osgterrain > example with an osgdem (--TERRAIN) generated dataset: "osgterrain.exe > boston-sample\terrain\out.ive" i get the following message: "No model > created, please specify terrain or master file on command line", so till yet > i haven't got an impression what osgTerrain actually is/does. > actually it is more important for me to get some information about > osgTerrain itself, than to get this example running - but if it happens that > someone knows why that application doesn't work it's okay too ;-) > > * is there an easy way or example on how to load terrain vertices from a > dumb raster file (heightmap, like you use in many 3d modelling programs) > directly to osg (without osgdem preparation)? > > > thanks in advance, > christian > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=7253#7253 > > > > > > _______________________________________________ > 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
