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Apple QuickTime VR User Manual

Page 84

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Capturing images for QTVR objects

You can capture real-world objects using a video, film, or digital camera. For best results,
shoot the object frames in sequence, using a coordinate system and a manual or motorized
rig to ensure that all possible viewpoints you want are captured. Motorized and manual rigs
are available from a number of companies; some are listed in Appendix B.

In the setup pictured below, the object, a portable computer, is mounted on a support that
can be rotated. The camera is mounted on a motorized support. An alternative is to mount
the camera on a stationary support, and place the object securely on a turntable or other
solid support that can be rotated.

Tip: An economical solution for shooting an object that has one row is to place it
on a “lazy Susan.”

Photographic techniques

This section covers some of the issues you should consider before you begin to photograph
your objects.

Backdrop

It’s a good idea to use a backdrop when photographing objects. A black or white backdrop
helps create the illusion that the object is “floating in space” and that the user is picking up
and manipulating the object, rather than just walking around it. If the object is too dark to
contrast well against a black backdrop, use another solid color evenly lit. Then you can
change the background color using an image-processing program.

Use a stable support and
fix the object firmly to the
support so it does not fall.

Video, film, or
digital camera

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Chapter 8