I think the "cross eyed" phrase is a bit ambiguous.
What I ended up with (I think) is a focal point not closer than the screen but farther than it. My eyes didn't want to do it at first but then they did.
What is weird about it is the focusing and focal point are out of sync --- my brain can do it but the weird feeling is one of "gosh, this thing is a lot closer than it should be" where "should be" is based on focal point, and "is a lot closer" is based on focus.
Don't want to do this too much, feels like I could easily decalibrate my brain for real life lol.
That focus-farther-than-the-page works (for most people) as long as the distance between the (center of each of the) two images on the page is smaller than your interpupillary distance. In this case the left eye will see the left image, the right eye the right image, in the overlaid resolved image.
For most people, having the images resolve in front of the plane of the page such that in resolved overlaid image the right eye sees the left image, and the left eye sees the right image, will work ... and it can work even if the images are farther apart than the interpupillary distance.
Thanks, that is nicely explained --- you finished the thinking I had only started!
Are the eyes mechanically capable of pointing outward (so the interpupillary distance is not longer a constraint)? If so, is the problem then neurological not mechanical (brain doesn't want to send signal so they do that)?
This helped me more than any other comment here, but I've still not got them fully overlapping. (Probably just a matter of practice/trials at this point, to be fair.)
I think the "cross eyed" phrase is a bit ambiguous.
What I ended up with (I think) is a focal point not closer than the screen but farther than it. My eyes didn't want to do it at first but then they did.
What is weird about it is the focusing and focal point are out of sync --- my brain can do it but the weird feeling is one of "gosh, this thing is a lot closer than it should be" where "should be" is based on focal point, and "is a lot closer" is based on focus.
Don't want to do this too much, feels like I could easily decalibrate my brain for real life lol.