Convergence as a Depth Cue

[P3D <LeRoyDDD@xxxxxxx>]

     IMO, convergence is exceptionally weak as a depth cue.

     Experiments have been suggested on the question... though not terribly
scientific, I present the following for your consideration:

     Toward the end of NSA Milwaukee, Bill Duggan was presenting a projection
workshop. He wanted to demonstrate how changing the horizontal adjustment
would move an image into and out of the screen.
     Unfortunately this only works if you can see the screen.
     The projection room was very large with high ceilings and walls which
were dark and non-reflective. There weren't any appreciable light reflections
onto the screen *at all.*
     As he moved the controls, I could feel the convergence happening to my
eye muscles, but the image didn't seem to move forward and back or otherwise
change.

     So I must queque(:=)) with those who think the self-contained image
disparaties are the overwhelming contributors to the mental stereovision
construct.

LeRoy Barco
LeRoyDDD@xxxxxxx


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