Hi Michael, On 2/03/12 3:41 , Michael Schanne wrote: > I am trying to create a scene which contains a texture displaying a live > video image. > The image is sent as a buffer of raw data from an attached camera. I was able > to get > something working but the performance is terrible: about 1.42 frames per > second. I need to > get to at least 20 fps. I am dealing with an image that is 640x480 pixels > with 32 bits per > pixel. I have stripped down my scene to contain only a geode with a quad > geometry, and an > attached texture, and I still see the performance problem. The texture has an > attached > StateAttributeCallback, in which I fetch the buffer of data for the next > video frame, and > then call setImage:
Make sure that the image is not scaled to a power-of-two, by setting the appropriate hint. This can absolutely kill texture upload performance. /ulrich _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
