We have been prototyping a global terrain layer with Cesium using the GeoServerTerrainProvider (kaktus40) with 90m SRTM (CGIAR). Performance is not great compared to AGI's public quantized-mesh data using CesiumTerrainProvider, which I believe relates to the fact that qm is multiresolution and by nature much smaller payloads and quicker to process by Cesium. Also, with GeoServerTerrainProvider you must make some assumptions about the level of detail (LOD) of your data. This will make things tricky when we get special collects like Lidar for specific areas and we ultimately want to mosaic that right into a single global elevation layer.
I see this as very similar to vector tiles in that 1) its a new general output format to implement for GeoServer, 2) integrates seamlessly with GeoWebCache and 3) to address Andrea's question, it must be capable of on-the-fly simplification using scale hint. So, from raster source to TIN geometries to quantized-mesh on the fly. It seems like we have some decent interest. And a few projects out there doing pieces and parts of this: https://github.com/geo-data/cesium-terrain-builder *https://github.com/loicgasser/quantized-mesh-tile <https://github.com/loicgasser/quantized-mesh-tile>* I wonder if LibCTB implemented qm-1.0 and then exposed a method for us to generate just a single terrain file if that would save some work. Jason Newmoyer Newmoyer Geospatial Solutions 843.606.0424 ja...@newmoyergeospatial.com On Thu, Sep 29, 2016 at 6:12 AM, Brad Hards <br...@frogmouth.net> wrote: > I did see plans for a (large) organisation to use Cesium with GeoServer. > > I'm trying to find the detail, but it did involve an external plugin, > perhaps > https://github.com/kaktus40/Cesium-GeoserverTerrainProvider or something > like > that. > > Brad > > > > ------------------------------------------------------------ > ------------------ > _______________________________________________ > Geoserver-devel mailing list > Geoserver-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-devel >
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