[Chimera-users] Red-cyan stereo

Greg Couch gregc at cgl.ucsf.edu
Thu Mar 8 14:49:02 PST 2007

On March 7, Tom Goddard wrote:

>   I do not think Chimera produces red-green stereo, only red-cyan.  Greg
> Couch in our lab would know.  I've sent your question to the Chimera
> users groups so he can give a more definitive answer.

Yes, for red-cyan stereo, chimera puts the left eye in the red channel and 
the right eye in the blue and green channels.  This allows for stereo 
viewing of color images with red-cyan glasses, but there are many 
problems, such as red objects not having any stereo cues because they are 
in only one eye.  You will get the best stereo effect with gray-scale 
images (shades of gray) and if you do use color, avoid saturated colors.

You can see the red, green, and blue components of a color with chimera's 
Color Editor tool.  The color name field can be set to any of the color 
names in the Actions Color menu.

Other glasses, red-blue and red-green, will work well with gray-scale 
images, but will have greater problems with ghosting (ie., part of one 
eye's image appearing in the other's) in color images.  Ghosting will 
always be present to some degree unless the glasses are perfectly matched 
to the frequencies of light emitted by the display.

So the best advice is to color your data various shades of gray.

 	Hope this helps,

 	Greg Couch
 	UCSF Computer Graphics Lab

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