Hmm, I'm not 100% familiar with 3d programming, but wouldn't the best way be to find the cross-section of the object at some distance from the camera, which would be a 2d shape, and then you can center the text on that shape?
On Tue, Jun 30, 2009 at 9:26 PM, Astan Chee <[email protected]> wrote: > Hi, > Im relatively new to opengl and I'm not familiat with its jargon but what I > have is objects in a 3D world in various positions and a camera that can > "move" around. What I'm trying to do is if the distance between object and > camera is close enough, display some information on the screen on the > object. > I know how to calculate distance and I know how to print/display text in > opengl (I'm using glOrtho and glRasterPos2i to map out the characters one at > a time). > Anyway, what I'm having problems with is how do I calculate where to > display these information on the screen so that it overlaps the object > (assuming I know the distance and the angle of the camera and the object > relative to the camera). Does this make sense? I've attached an image that I > photoshopped to look like what I'm trying to do. > Thanks for any help > Astan > -- Visit my blog at http://oddco.ca/zeroth/zblog
