Found two different ways to tell OSG that vertexs were modified.
Maybe these are circumventions that aren't proper (?).
What is the "one right way"?
Call dirtyDisplayList() ?
ctor()
: mVertexs(new osg::Vec3Array),
mDrawArray(new osg::DrawArrays( osg::PrimitiveSet::POINTS,0,0))
{
}
void AddParticle( const osg::Vec3& v )
{
mVertexs->push_back( v );
#if REGULAR_OPENGL_POINTS
mDrawArray->setCount( mVertexs->size() );
#endif
#if POINT_SPRITES
// Passing same vertex array causes update.
mGeom->setVertexArray( mVertexs.get() );
#endif
}
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