OpenSceneGraph 3.0

Time for action—reading files from the Internet

To understand the use of a pseudo-loader, we will try to read a model from the Internet. The osgviewer utility is enough to perform this example, but you can always make use of the osgDB::readNodeFile() function to achieve the same result in your OSG-based applications.

1. The model file already exists at the following URL: http://www.openscenegraph.org/data/earth_bayarea/earth.ive.
2. Before trying to read files from the Internet or intranet, we'd better have a check of the OSG plugin directory to see if there is an osgdb_curl plugin. It should exist if you are installing OSG from the installer described in Chapter 2, Compilation and Installation of OpenSceneGraph. But for developers who build OSG from ...