Used offsetof instead of fixed offset for VBO data specification.
Used offsetof instead of fixed offset for VBO data specification.

svn path=/trunk/libavg/; revision=2630

hoodie/libavg,th3infinity/libavg,libavg/libavg,yyd01245/libavg,hoodie/libavg,hoodie/libavg,scotty007/libavg,libavg/libavg,scotty007/libavg,scotty007/libavg,libavg/libavg,libavg/libavg,th3infinity/libavg,hoodie/libavg,yyd01245/libavg,th3infinity/libavg,th3infinity/libavg,yyd01245/libavg,scotty007/libavg,yyd01245/libavg