Toshiba Qosmio F750 Series User Manual page 73

Glasses-Free 3D Playback Function cannot be used for two or more
persons at the same time.
Do not cover your nose such as wearing a mask when using Glasses-Free
3D Function.
Make sure you have removed the covering on the Web Camera panel
before watching 3D videos.
Do not cover the Web Camera when watching 3D videos.
Do not dim the lights in room when using the Glasses-Free 3D Function.
The Glasses-Free 3D Function will not be working when moving beyond
the range of the Face Tracking.
Viewing Range Limitations
The sitting distance and viewing angle for Glasses-Free 3D Function are
described below.
Distance
Viewing Angle
Using the X-Tune Utility
The X-Tune utility provides an easy way to enhance the 3D stereo effects.
You are recommended to use this utility to optimize the 3D stereo effects
when using the Glasses-Free 3D function for the first time or being
unsatisfied with the 3D effects.
Starting the X-Tune Utility
Use the following procedure to start the X-Tune utility.
User's Manual
0.6 m (recommended) away from the center of
the LCD.
Perpendicular to the LCD.
Figure 3-8 Viewing Range
Qosmio F750 Series
3-25