Hi, sorry late, term is at full swing ;)
On Wed, 2009-11-04 at 13:06 -0200, Thiago Bastos wrote: > Hello, > > Has anyone worked on a "georeferenced" terrain engine for OpenSG? yes. > Something in the likes of Google Earth, NASA World Wind, etc. -- with > CLOD, hierarchical tiling, on-demand loading of imagery and elevation > data (ideally from a map server), etc? I have a sample implementation for hierarchical tiling, it is basically a quadtree hierarchy. It is not quite finished yet as for the direct disk to gpu transfer it needed some infrastructure in OpenSG which is finally done ;), so I see that I can update and finish it. One problem is that it currently depends on my tree and addon stuff http://github.com/vossg , the treegv and addongv. I plan to merge treegv back into the main tree but I have to sort out gdal support first. > I've done some research and found a handful of interesting projects, > but unfortunately most of them have gone the OpenSceneGraph way. > > 1) osgEarth - http://wush.net/trac/osgearth/ > This is exactly what I'd like to have, but unfortunately it's made > specifically for OpenSceneGraph. > > 2) ossimPlanet - http://www.ossim.org/OSSIM/ossimPlanet.html > Similar to osgEarth (although it seems like a bigger project), and > also based on OpenSceneGraph. > > These first two are able to incrementally load data from open map > servers (WMS). If you don't need a WMS, there's a third option: > > 3) Virtual Terrain Project - http://www.vterrain.org/ > Not exactly what I need, but seems like a good starting point. > Technically it is scene-graph independent, but then again, the > OpenSceneGraph integration is well maintained, unlike the OpenSG > integration (unfortunately). I started looking into it at one point and have a rough idea how this one works. If urgently needed I could pick it up again. IIRC I got the basics working with OpenSG2 > Finally, as a last resort, there's libMini -- one interesting OpenGL- > only terrain-rendering library: > > 4) libMini - http://stereofx.org/terrain.html > I guess it wouldn't be too difficult to create a custom Node for > wrapping libMini... I should have this lying around somewhere I'll check in which state it is and push it to my addon tree if it is in reasonable shape. Final question, as this is quite a wide topic, could you narrow down a little what you are looking for, e.g. something like Google Earth with has to deal with the whole planet and wrap arounds or more a localized area ? kind regards, gerrit ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
