Added handling of short (<=4 points) polygons as tri fans and the rest as polygons which are tesselated, to improve load and build time, yet still resselating the large polygons that need it.
Added handling of short (<=4 points) polygons as tri fans and the rest
as polygons which are tesselated, to improve load and build time, yet
still resselating the large polygons that need it.


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@3327 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg