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522 18. Building on the Basics, Some Projects in VR
Figure 18.9. Placing miniature mesh figures onto a real desktop illustrates the capabil-
ity of an AR head-mounted display.
18.7.1 The ARToolKit
At the core of the ARToolKit is the action of placing the 3D object into the
field of view of a camera so that it looks as if the object were a ttached to a
marker in the real world. This is best illustrated with an example. F irst we
see the scene with the square marker indicated on the white sheet of paper in
Figure 18.10(a).
The software in the ARToolKit produces a transformation matrix that,
when applied to an OpenGL scene, makes it look as if the ...