HI Mustafa, You'll need to call dirty on the vertex arrays for them to be updated.
Robert. On 10/23/07, Mustafa Kabak <[EMAIL PROTECTED]> wrote: > Hi, > > I am using osg 2.0 on Windows XP. > > I am trying to get my own subclass of TerrainTechnique (which is > heavily inspired by GeometryTechnique) to work. Similar to > GeometryTechnique, I set and populate the vertex arrays and primitive > sets of an osg::Geometry object. > > Differently from GeometryTechnique, in the cull() method I > incrementally update the vertex arrays; remove all primitive sets from > Geometry and set and populate new ones. (i.e. a dynamic terrain) > > Here is my question: Do I need to do any specific things to use vbo's? > I only call setUseVertexBufferObjects(true) on Geometry and get > incorrect results, as if the primitives are not updated. No problems > when not using vbo's. > > Before getting into debugging, I wanted to know if I am missing > anything simple (maybe setting a flag, or flushing a buffer?). > > Regards, > > -- > Mustafa Kabak > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
