Hi Harash, Render you scene to a depth texture and then compute the normals from this in a second pass in the shader.
Robert. On Mon, Feb 25, 2008 at 3:20 PM, Harash Sharma <[EMAIL PROTECTED]> wrote: > > > > Hi All, > > > > In my OSG application, I want to find the normal vector corresponding to > each pixel position. It means that after rendering if an image pixel (i,j) > comes from an object plane P, I need to find the Normal vector to P. One of > the ways would be to use LineSegmentIntersector to find the intersecting > plane for pixel (i,j), given the Line of Sight. But doing this for all > pixels in the field of view would be a very slow process. > > > > It would be very kind if anyone could tell if a faster mechanism to do > this is there in OSG and give a pointer to it. Thanks in advance. > > > > Regards > > > > Harash. > > > > ________________________________ > Looking for last minute shopping deals? Find them fast with Yahoo! Search. > _______________________________________________ > 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
