Compositing Hi-Res Stereo Images - Nuke 101: Professional Compositing and Visual Effects - page 376

You can now view your handiwork. The thing is, however, that this is a stereo
pair of views you have here and you can only watch one eye at a time.
If you have anaglyph glasses (red and cyan glasses, not the fancy kind you find
in cinemas), you can use them to watch the true image you are producing. If you
don'thave3Dglasses,youcanbuysomeonlineordownloadinstructionsonhow
to make them here: www.peachpit.com/nuke101 .
To view stereo with anaglyph glasses, you need your image to be an anaglyph
image in the first place. You can do that with the Anaglyph node, found in the
Views/Stereo toolbox.
7. Select Write1 and insert an Anaglyph node after it ( FIGURE 8.47 ).
Figure 8.47. Inserting an Anaglyph node after the Write node.