osgLua: lua dynamic wrapper for OSG

[Jose Luis Hidalgo Valiño <joseluis.hidalgo@...>]

This is a dynamic wrapper that uses osgIntrospection to instance and  
invoke methods of the classes reflected by
OSG. It could be used to load data, but since osgProducer is  
reflected you can set up a viewer from the script.

subversion repository: http://svn.pplux.com/lab/osgLua

This is the first version, and needs a lot of improvement... but may  
be someone else will find this useful.

Example (http://svn.pplux.com/lab/osgLua/scripts/test.lua):

root = osg.Group()
geode = osg.Geode()
shape = osg.ShapeDrawable()
shape:setShape( osg.Sphere(osg.Vec3(4,5,6),15) )
geode:addDrawable(shape)
root:addChild(geode)

viewer = osgProducer.Viewer()
viewer:setSceneData(root)
viewer:setUpViewer(osgProducer.Viewer.ViewerOptions.STANDARD_SETTINGS)

viewer:realize()

while ( not viewer:done()) do
	viewer:update()
	viewer:frame()
	viewer:sync()
end

Cheers,
    Jose L.