Recent content by otis

I am going through some papers on computer graphics because I'm implementing a 3D engine and have come across and equation I don't recognize. I've looked in every linear algebra book on vectors and matrices I have but had no luck whatsoever. equation goes like that, sorry for bad formatting...

Thanks. I know I described my problem in very unclear way, but that is the best I can do, sorry. So here is a little picture that illustrates it: http://img369.imageshack.us/my.php?image=sampleig2.png As you see I am actually working on a 2D projection plane where the image is drawn. Lower...

I am creating a program where I want to rotate circles facing me(point sprites for those familiar with CG) so they look like spheres. Data I have: - coordinates of every point inside point sprite in [-1,1] € R^2 space. - center of point sprite in 3D space - point sprite normal in 3D space...