[Ardev-users] Picking with openGL and ARDev

[cbar141 c. <cb...@au...>]

Hey,

I am currently trying to implement picking using OpenGL with ARDev. I
got your code to implement picking from
http://gpwiki.org/index.php/OpenGL:Tutorials:Picking but I am having
some issues. What my program does is it renders a cube on top of a
fiducial marker on a robot. I use picking to select each face on the
cube individually. The program is able to correctly use picking to
select the faces of the cube while the robot is in the centre of the
screen. But when the robot is moved to either side of the screen the
faces of the cube cannot be selected when they are clicked on. Instead
if the mouse is clicked a little bit away from a face, the face is
then selected. It seems as though when the robot is not in the middle
of the screen the program thinks the cube has been rendered to the
side of where it is being displayed.
Is picking compatible with ARDev? and if so do you have any
suggestions as to how I could fix the problem?

Kind regards,
Christine Barber.