if your are using "triangle strip" you will need to access the index buffer by using trianglenum*3+"vertex index"(the num you talk about before) and then use the index to access vertex buffer. if you are using "triangle list" just access the vertex buffer using trianglenum*3+"vertex index".
----- Original Message ----- From: "Zahraa Yasseen" <[EMAIL PROTECTED]> To: <osg-users@lists.openscenegraph.org> Sent: Wednesday, October 17, 2007 7:42 PM Subject: (ÈðÐÇÌáʾ-´ËÓʼþ¿ÉÄÜÊÇÀ¬»øÓʼþ)[osg-users] Analyzing the Topology of osg::Geometry > Hello, > > Is there a way to tell which vertices (of the vertex array) in an > osg::Geometry instance belong to a given face i, regardless of the > PrimitiveSet type? > The query is: > Given face Id (i), and vertex index (j=0,1,2 if the face is a > triangle) in this face, > What is the index of this vertex in the VertexArray of the osg::Geometry? > > Thanks > > > > > ---------------------------------------------------------------- > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
