See also filming in the CAVE for more details and links.
Make an appropriate patch configuration file if you do not already have one. (The following notes assume you are using this template.) Within this file, set the rendering to mono (rather than stereo):
#viewerNames (Viewer, ConsoleViewer) # default settings viewerNames (MonoViewer, ConsoleViewer)
If you want to leave the video camera at one spot, make sure tracking is false within the
headTracked false # true or false, use false for fixed view rendering
and run the calibration program:
Set the camera up and align the grid in the cave so that the lines are horizontal and parallel across the boundaries between the back and side walls and vertical and parallel across the back wall and the floor. Change the settings by changing the numbers in this line within
section MonoCAVESViewer. Pay particular attention to whether or not the lines are converging or diverging.
# The following line sets the fixed view stero location if headTracked false headDeviceTransformation translate (0.0, -96.0, 48.0)
The numbers are in inches relative to the center of the floor of the cave.
+x is to the right when facing the back wall,
+y is toward the back wall, and
+z is up. The edge of the floor away from the back wall is a
Check the alignment by seeing if the 3 color axes are exactly at the tip of the wand. (The second 3 color axes are for the wired headtracking device.)
Once the camera is aligned, you are ready to tape.
To place the tracker on the camera, use double sided sticky tape and regular tape. In
section MonoCAVESViewer, set headtracking to true and check that the head device is set to Head2 (the wired head tracker).
headTracked true # true or false, use false for fixed view rendering headDevice Head2
A gray background can keep the camera from blooming when a menu comes up. To change the background color, see Example Patch Configuration Files.
A fixed exposure time also helps substantially.
The system doesn't track well beyond 1 foot from the cave floor, so if you are tracking the camera, stay within the cave area.