OpenSceneGraph 3.0

The pseudo-loader

In the previous table, some extensions are marked as pseudo-loader. This means they are not actually file extensions, but just add a suffix to the end of the real filename to indicate that the file should be read by the specified plugin. For example:

osgviewer worldmap.shp.ogr

The real file on the disk is worldmap.shp, which may store the entire world map in ESRI's shapefile format. The suffix .ogr forces osgdb_ogr to read the .shp file and construct the scene graph; otherwise osgdb_shp will be automatically found and used by default.

Another good example is the osgdb_ffmpeg plugin. The FFmpeg library supports over 100 different codecs. To read any of these, we can simply add a suffix .ffmpeg behind the filename and leave the work ...