Hi, On Tuesday 08 July 2008 11:57, David Spilling wrote: > Is there an obvious way of aligning the contents of the Vec4Array to 16 > byte boundaries? Can I also guarantee that each std::vector entry will be > contiguous in memory? i.e. I would like to make sure that array[0].x(), > array[1].x() etc. are all on consecutive 16 byte boundaries. > > (I'm using MS VC++ 9, so would natively use __declspec(align(16)) but am > not sure how to "get at" the vector). > > If not, can I declare a big array of floats, that is aligned as per > requirements, and pass it into a geometry as a vertex array direclty, > bypassing use of Vec4Array (and Vec4 for that matter)? > > I guess if neither of these works, then I'm down to subclassing > Vec4Array...
See examples/osgsharedarray.cpp and make sure that the pointer you provide to MyArray is aligned as you like ... Mathias -- Dr. Mathias Fröhlich, science + computing ag, Software Solutions Hagellocher Weg 71-75, D-72070 Tuebingen, Germany Phone: +49 7071 9457-268, Fax: +49 7071 9457-511 -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Florian Geyer, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Prof. Dr. Hanns Ruder Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
