In this scene, there are three objects. Select Panels > Layouts > Two Panes Side by Side to view the perspective view and stereoscopic view simultaneously.
To create a stereoscopic camera, do as follows:
You can also create a stereo camera by selecting Stereo > Create > Stereo Camera.
An icon with three cameras appear, indicating that a stereo camera has been created.
It is best to set up the scene first with your objects, then create a stereoscopic camera.
You may want to change your background color by selecting Stereo > Background color to have a better view in stereo mode.
You have now created and named a stereoscopic camera for your scene. In the next steps you will be adjusting the attributes of the cameras to fine tune the anaglyph effect.
Please see http://www.autodesk.com/hardware for the stereoscopy qualification chart for Maya for Windows.
Here are some general guidelines for tweaking the attributes of the stereoscopic camera:
You should re-adjust your Interaxial Separation if you change your output device, since the settings for one display method may differ from another.
In this example, the stereoscopic effect is the most realistic when the Zero Parallax Plane is in between the two objects.
In this example, the Anaglyph viewing mode is used, and the red/cyan colors are swapped for the object in front of the parallax plane and the object behind. For the object that is behind the zero parallax plane, the object appears in cyan/red. For the object that is in front of the zero parallax plane, it appears in red/cyan.