Appendix A: Converting 3D Model Files
To display virtual objects in an augmented reality app, you have several options. First, you can create virtual objects out of common geometric shapes (box, sphere, torus, pyramid, etc.). The problem with this approach is that it’s time-consuming and clumsy. Trying to create sophisticated images like a dinosaur, medieval castle, or jungle river can only create chunky figures that don’t look realistic.
A second approach is to draw the virtual object yourself using a 3D modeling program. While this can create more realistic and sophisticated images, it’s beyond the skill of all but the most experienced graphic artists.
A third solution is to simply download and use a 3D model that someone else has already created. ...
