Hi Isha, On Fri, Jun 10, 2011 at 3:36 PM, Isha Kandaswamy <[email protected]> wrote: > Hi, > > I'm also using svn/trunk version of the OSG and the 3.6.1 > version of DCMTK, and built both myself from source. > > I'm using a ubuntu 10.04 64 bit linux system with an and I dont know if i > have a graphics card or open gl drivers... my laptop is a very old dell > inspiron 1525 core 2 duo machine... I tried adjusting the modes using v, and > adjusting the alpha values... but it still looks the same.. Do you think it > could be a problem because of my machine???
It could be a driver/hardware issue. One way to check this would be to test your data on another machine. Another check you could do to just check to make sure that the dicom data loading is all working OK is to do a md5sum check on a model generated by osgvolume, try: $ osgvolume Skull-2mm -o test.osgb $ md5sum test.osgb The value I get is: 505e17054521b05e62b1f920537a7cfb test.osgb As a general note, volume rendering is amoungst the most challenging tasks that GPU's ever have to deal with, the texture bandwidth load is several orders of magnatude higher than most normal 3D graphics loads so using embedded graphics won't be sufficient, even older mid range graphic cards will struggle. The memory footprint of 3D textures is also huge and can easiy swamp smaller graphics cards. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
