The camera mode refers to any of several
stereo and mono viewing options.
The camera mode of the Chimera graphics window can be controlled with
the command stereo,
the Camera tool,
or the menu raised by double-clicking the eye position in the
The Image camera mode
(used for saving image files)
can differ from the mode shown in the graphics window.
Available camera modes:
- mono - standard single view
- left eye - single view from the left-eye position
- right eye - single view from the right-eye position
- cross-eye stereo
- side-by-side views, with the left-eye view on the right
and the right-eye view on the left
- wall-eye stereo
- side-by-side views, with the left-eye view on the left
and the right-eye view on the right
red-cyan (anaglyph) stereo
- superimposed left-eye and right-eye views in different colors.
Glasses with colored filters (such as used to view 3D movies)
are needed to produce a three-dimensional effect.
The red channel is used for the left-eye view,
green and blue for the right-eye view.
This setting works best with red-cyan glasses, but reasonably well
with red-blue or red-green glasses. Some ghosting will always be present
unless the glasses are perfectly matched to the frequencies of light
emitted by the display. Stereo cues will be greater when colors
with a balance of red and blue/green components are used, for example,
grayscale, magenta, and yellow rather than red, green, blue, or cyan.
The red, green, and blue component values of a color can be viewed by
entering its name in the
- rapid flickering between left-eye and right-eye views;
special synchronized glasses are needed to produce a three-dimensional effect.
This mode is only available on certain systems:
- Sequential stereo is only supported on workstation-class graphics cards
with graphics drivers configured for stereo (e.g.,
ATI FireGL and NVidia Quadro graphics cards for Windows and Linux,
NVidia Quadro for Mac OS X).
- In addition, sequential stereo in Chimera for Mac (X Windows) requires
enabling X11 by entering the following command in a Terminal window:
defaults write com.apple.x11 enable_stereo -bool true
X11 must be restarted after this setting is changed.
The setting is saved in the ~/Library/Preferences directory and will
apply to future sessions.
- An extra step is needed to
display sequential stereo remotely to an SGI.
- DTI side-by-side - for stereo viewing with
UCSF Computer Graphics Laboratory / May 2007