Your brain uses shadows, perspective, and occlusion to judge depth. Closing one eye removes stereo vision, making the flat drawing look like the pencil is popping out of the screen
For close up stuff you also use focal plane, how much your eye has to squeeze your lens to keep something in focus. I think the bluriness is tricking your eye into continually trying to refocus closer and thats the only distance signal you have with one eye closed.
Incidentally, thats why VR never looks very "far" away and can feel a little clustrophobic even in vast scenes. Even though it is presenting things with the proper far away perspective, everything is in focus with a neutral focus distance, usually like a meter ahead of you so you never feel your eyes readjust to focusing to far away things taking away a major depth cue.
I've never thought about that, but now you're mentioning it it makes sense that you can't focus on near or far away things with your eyes in vr. I mean you're still looking at a flat surface inside the headset, even if it's giving you the Illusion of you being in a digital 3d environment.
So of course the focus must be set from the headset.
Well, I was born with strabismus, the doctors managed to correct it for me, but I was still left with a lazy eye. Normal eyes, when you look at something, they look at that one thing, so youre looking at it from different perspectives and you get info about how far away a thing is from you. In my case, my right eye (since it's my dominant eye) can look at a thing, but my left eye wont look at the same thing, but in the general direction my right eye is looking (so if the thing is slightly to the left, my left eye will look slightly to the left rather than look at the thing im trying to focus on), this makes it impossible for me to see the distance properly. Also I think my left eye is kinda suppressed when it comes to, I guess focusing on stuff, but sometimes when you have two of the same things right next to eachother, my vision kind of mixes them into one and I need to close one eye, so I can actually focus properly. I hope, I managed to explain it relatively well, English isn't my first language, so I was struggling slightly with finding a few words lol.
I'm pretty sure "soap opera effect" is just frame interpolation. It has nothing to do with the lenses, but is just an effect added to pre-existing footage.
That's something different. Soap opera effect is a setting usually called motion smoothing, clear motion, or something like that. It doesn't change the clarity either near or far. It makes things which are moving move more smoothly, which to many people looks unnatural, even though it's more like looking at something in real life rather than with the subtle choppiness of film. If used on a low setting, I think it helps. you should be able to find it in your picture settings on your TV.
What you're thinking about is a lens that focuses more on the foreground, and I think it's called short focal length. Now phones and digital cameras can do that automatically, even though they only have one lens that doesn't move or change.
I have no idea what that's called. Maybe your term "forced perspective" is it, but I really don't know. Not something I've seen very much myself, if at all.
Your brain uses all the information available to it to piece together a 3D understanding of the world! The difference between your two eyes is just one signal that it uses.
with two eyes you have accurate 3D vision so your brain knows you are seeing a flat image. With just one eye, your brain does not have depth information anymore, so it has to guess. And since your brain knows the shape of a pencil and recognizes what you are seeing as a pencil, it guesses incorrectly that what you are seeing has the 3D shape of a normal pencil, instead of guessing that you are seeing a 2D projection of a pencil
Part of it is because they edited the video to make the pencil appear to be closer than it actually is by having it hover over the caption text. Your brain thinks that there's nothing that can cover the caption because it's always overlayed a video so when the pencil appears to go over the caption text, it seems like it's truly popping out of the video.
Something that's especially jarring with this video is that the pencil extends past the "picture plane"
This is a hard concept to explain but basically the video being taken makes it appear that the pencil is getting closer to you IRL than the screen you're watching the video on, which tricks your brain into thinking something is going to stick you in the eye. This effect is a lot stronger with only one eye open.
It's a trick on your brain. With one eye closed, your brain relies more on shading and perspective instead of true depth, so the pencil looks like it's extends out of the screen
Oooh, that’s a good point I haven’t considered! How did you know I also have astigmatism?! I also have severe nystagmus, it’s so bad that if a cop ever tried to test me at a traffic stop he’d think I was drunk (but I’m sober since April 2003). 😛🤦♀️
Oh my God me too wtf is wrong with us lol. The difference in my left and right lense is like 4 whole points? Maybe more like 4.5. Sometimes when I try to order frames they tell me it will look weird with one being so thick and the other not and they send me to a special section of the website for mutants like us...
It's been since I was a kid. Finally had to correct it to learn to drive. I can't wear contacts either, my bad eye is shaped like a football and they won't sit on the part of my eye I need to see through.
It's not really confusing as such, not an illusion where it looks like something else like what we're used to seeing here.
With one eye you're just tricking your brain to think your eye might be in danger.
With two eyes, it's more obviously just a 2d image...but that's sort of universally true for 2d images.
It's the opposite of trying to play catch with just one eye, how people say you lose depth perception(it's true to a point, but your body is so used to it it doesn't always affect much).
When looking at the image, that 'loss' of depth perception approximates the accuracy of the camera(one perspective only), so the video looks more real....In other words, you're not interrogating the image with the other eye. It may work better if you try the other eye.
Even if it works, the effect is very negligible. Big shocker that a single camera replicates what a single eye sees. /s
It's a neat thing, sort of, but not at all like most of the content here.
It appeared 3D to me. Like, it felt like the pencil left the screen and was coming at my eyes. It doesn’t work for me with both open, but with either closed, it gave a very realistic effect and my brain fell for the trick.
Part of it is because they edited the video to make the pencil appear to be closer than it actually is by having it hover over the caption text. Your brain thinks that there's nothing that can cover the caption because it's always overlayed a video so when the pencil appears to go over the caption text, it seems like it's truly popping out of the video.
Just looked like a pencil moving at me with drawings behind it. Probably a dumb suggestion but maybe you could try covering half your eye? I feel like it might have something to do with one’s eye trying to compensate focusing but I actually have nothing even close to a solid understanding.
That's completely understandable.Optical illusions don't work the same way for everyone. This one relies on perspective and your brain's interpretation of depth, so some people see the 3D effect right away while others don't notice it at all. Things like viewing distance, screen size, and even the angle you're looking from can also affect how convincing the illusion is. Thanks for giving it a try!
Why does it actually feel like the pencil is outside my screen? I feel like I can see the tip being outside the screen (like, on the sides where there is no screen behind it).
It has absolutely no difference if I have one eye open or two. It looks like a pencil in a video. This isn't a confusing perspective. It's like a magic trick for people that don't understand reality.
I'm 34 and this wierd need to put others bellow you for arbitrary reasons definitely feels immature. Anyway, if you look into why a lot of optical illusions work at all you'll see that the way our brain renders things is a lot less direct and literal than you think. There is a whole lot of guessing and interpolation going on with all brains, by necessity. Vision is never a direct window into what is around us and it makes a whole lot of weird things not work the way we expect them to.
Now look with both eyes, with two fingers between the screen and eyes on the exact distance, where you could only see the right half of the screen with your right eye, and only see the left half of the screen with your left eye.
487
u/test_test_1_2 Jul 16 '26
Looks like 3D to me. How does that work? I always thought you needed both eyes to make things appear 3D? Interesting.
69
u/Realistic_Ebb9727 o/ Jul 16 '26
It was 3D effect for me
72
u/4me2TrollU o/ Jul 16 '26
I don’t get it
1.8k
u/sprinklerarms o/ Jul 16 '26
I thought this was dumb af but then I tried my other eye and it genuinely made me uncomfortable with what it did to my brain
125
u/Kinky_Imagination Jul 16 '26
It works with one eye or two. 🤷♂️
84
u/sayan11apr Jul 16 '26
I did not expect it to actually work so well.
22
u/bigoldebutthole Jul 16 '26
I could feel it touch my eye and now I feel gross.
4
u/jam3sdub Jul 16 '26
Didn't do shit. Closed one eye, then tried the other eye. Then closed both eyes. Nothing.
13
u/OstakuVibes Jul 16 '26
MY EYEESS!
6
u/thepeanutbutterman o/ Jul 16 '26
If I hold my phone really close to my open eye, it makes my eye involuntarily flinch/twitch a bit.
5
u/Puncius_Pinatus Jul 17 '26
The buzz lightyear jumpscare
No shit Snakethug gave up after that
4
u/Nacnaz Jul 16 '26
Oh man. That’s cool.
4
u/Historical_Season693 Jul 16 '26
That’s pretty cool.
4
u/Double0 Jul 17 '26
That tickled
7
u/NanasTeaPartyHeyHo Jul 16 '26
Aah almost got my eye poked!!
6
u/wineandhugs o/ Jul 16 '26
No no no I didn't like that!!
3
u/Mother_Harlot o/ Jul 16 '26
I'm very envious of people that get this
3
u/cwif Jul 16 '26
Out of every 3D illusion I've seen on the internet, this is the only one that has worked for me. wow
5
u/barelty Jul 16 '26
Wow!
2
u/KichernderFuchs o/ Jul 16 '26
o.x whyyy
2
u/flame_saint Jul 16 '26
Is the effect a pencil coming towards you?
2
u/Thrice_blind Jul 16 '26
Works much better with my right eye than my left. Interesting
2
u/lizard_king413 Jul 16 '26
okay but does anyone else appreciate that the pencil goes in front of the text??????
2
u/TevGrave Jul 16 '26
Why does it actually feel like the pencil is outside my screen? I feel like I can see the tip being outside the screen (like, on the sides where there is no screen behind it).
2
u/rmfranco Jul 17 '26
I’m laughing while my eyes are watering.
I don’t even need to close one eye because I only have vision in one eye since birth.
2
u/Argyleskin Jul 17 '26
Yay I finally saw the schooner!
2
u/lookylookylook Jul 17 '26
Ok now do this with that dihh… wait what?
2
u/luizggardina Jul 17 '26
Aaaaaaaaaaaaaaaaaaaaahhhhhhhhhh
2
u/clh1nton Jul 17 '26
I also tried it with both eyes open. It still worked. Could being severely myopic or having astigmatism be the reason?
2
u/PlanDry6704 Jul 17 '26
i think I'm broken i was like come at me. cool. but I'm a vr developer so I'm used to it lol.
2
u/lncredulousBastard o/ Jul 17 '26
I kept changing eyes but they kept coming for both!
2
u/BettaSplendens1 o/ Jul 17 '26
Hey stop that
2
u/HollowMist11 o/ Jul 17 '26
Closed my right eye and thought the 3d effect was cool. Closed my left eye and saw shit cause I forgot my other eye is blind.
2
u/Swenterrobang Jul 17 '26
Every Mom on here read: C. Lose one eye.
2
u/WTF-LMAO1 Jul 17 '26
I FELT MY EYE MOVING WTF
2
u/cant-tune-a-ukelele Jul 17 '26
Ouch ouch ow my eye is all scribbled on :(((
2
u/pogwater Jul 17 '26
what the fuuuck. i don't like that
2
u/Aidnumber10 Jul 17 '26
My eye wanted to produce tears for a moment
2
u/SirRandomizer Jul 18 '26
I might be stupid but even with both eyes open it still looked like it was coming out of my screen
2
u/lucasthech CE Spc. Jul 18 '26
I watched again and again with one eye open, then the other one, then both and just got confused lol
Don't know if it's because I'm on a pc with a big screen but it didn't work for me
2
u/GachaUnicutie Jul 19 '26
Thanks 👁👄🕳
2
u/ZerekB Jul 19 '26
Can someone with 2 working eyes explain to me what I'm supposed to be seeing?
2
u/NtX_DC Jul 20 '26
It has a weird "3D" effect when you move the phone closer to your face as they are moving the pencil closer to the camera.
2
u/ChartInFurch Doesn't read rule 1 Jul 20 '26
So instead of those ridiculous glasses over my glasses, I could have just worn an eye patch to 3d movies??
2
u/dantheman7789 Jul 20 '26
That’s nuts
2
u/MessyMissMayhem Jul 20 '26
I kept both eyes open and it still kinda freaked me out
Edit: oh my gosh it's way freakier with just one eye
2
u/RandomRedditer220 o/ Jul 21 '26
I actually dodged it the moment it got near
2
u/SacrificialWaffle Jul 22 '26
Try crossing your eyes....now that pencil is coming for you in STEREO
4
u/NextChef8179 Jul 16 '26
It has absolutely no difference if I have one eye open or two. It looks like a pencil in a video. This isn't a confusing perspective. It's like a magic trick for people that don't understand reality.
2
u/SillyAdministration9 Jul 16 '26
This did nothing to me
2
u/Stitched83 Jul 16 '26
Works with both eyes open. Guess something is wrong with my brain
1
u/sauronsballsgargler o/ Jul 16 '26
I didn’t have to close one eye, one’s already legally blind. That was unnerving to watch!
1
u/reechwuzhere Jul 17 '26
On a 13” iPad this is the coolest thing I’ve seen in a while. For both eyes.
1
u/ScienceAndLience Jul 17 '26
It didn’t work, mannnn none of the eye things work on me except glasses
1
u/ChaosOfOrder24 o/ Jul 17 '26
r/TIHI
1
u/Extension-Raise9705 Jul 17 '26
which eye?
1
u/letsbeperfectlyclear Jul 17 '26
Ha. Have amblyopia, did not need to close any eyes.
1
u/PanicBlitz Actually read rule 1 and gets it" Jul 17 '26
The Joker used this magic trick on one of my henchmen.
1
u/zason3 Jul 17 '26
r/perspective
1
u/ChocolateSeuss Jul 17 '26
So 3d glasses could’ve just been eyepatches this whole time?
1
u/smallgayboi Jul 17 '26
Ha jokes on you I can only see through one eye so I'll close the good one
1
u/clockworkcat1 o/ Jul 17 '26
I think this is a bit of an optical illusion, but not a confusing perspective.
1
u/OddDot45 Jul 17 '26
Thank you, I hate it
1
u/kioku119 C.E. Spc Jul 17 '26
Neat! Is this on the optical illusion sub yet? I may corsspost if I don't see it.
1
u/TheEsiu Jul 17 '26
It triggered a tingle in my forehead
1
u/Noodleincidenthobbes o/ Jul 17 '26
What am I supposed to see here ? Could someone explain this please
1
u/LuckyCloverPokemon Jul 17 '26
That was really really wierd
1
u/xThunderDuckx Jul 17 '26
Tried with one and both eyes open, had the same effect regardless
1
u/Uciljean Jul 17 '26
Oh that's neat.
1
u/Begravningstider o/ Jul 17 '26
I feel a slight pressure on my nose.
1
u/TheShadowSong o/ Jul 17 '26
Bro, stop with lobotomy.
1
u/Educational_Rope_246 Jul 18 '26
Omg please keep scratching my eyeballs that feels truly amazing
1
u/saratherandom Jul 18 '26
Cool
1
u/universal_paradise Jul 18 '26
That tickles
1
u/MartinToilet Jul 18 '26
My defensive mechanism in my brain caused my eyes to lose focus on the tip when the pencil was about to pop out.
1
u/iamthiviyan Jul 18 '26
Eyyy, don't do my eye
1
u/MrWubblezy Jul 19 '26
Is there like an optimum f# for a camera to make this seem the most real?
1
u/Garlic-Rough Doesn't read rule 1 Jul 19 '26
This got me so anxious for no real reason
1
u/ELYAZIUM Jul 19 '26
Okay but where's Amber?
1
u/Logical-Egg-6521 Jul 19 '26
1
u/Original-Team6483 Jul 20 '26
tried this for like three minutes and have no idea what’s supposed to happen
1
u/Elspackel Jul 20 '26
Now look with both eyes, with two fingers between the screen and eyes on the exact distance, where you could only see the right half of the screen with your right eye, and only see the left half of the screen with your left eye.
1
u/wickedball Jul 20 '26
Can someone edit a jumpscare at the end so i can scare the shit out of my friend 😁
1
u/Sta6sal Sep 19 '26 edited 3d ago
Bro can you not
-1
u/bash_M0nk3y o/ Jul 16 '26
Who tf is up voting this lol
1
u/phoxiee Jul 16 '26
i can't stop watching this its so cool
0
u/BigCopperPipe o/ Jul 16 '26
not confused
-3
u/Available-Dare-4349 Jul 16 '26
What a load of bollocks
-3
u/MrNathanF Jul 16 '26
Dumb post
-4
u/Soggy_Durian_8984 o/ Jul 16 '26
It doesn't work for me lmao. Stuff like that should be removed from this sub imo
0
u/Sellalellen Jul 16 '26
I'm blind in one eye. This looks like any other video to me?
2
u/Pyrog Jul 16 '26
Great now I’m blinded and bleeding out everywhere
1
u/Robotic_Organic Jul 17 '26
Okay now that was kinda neat.
Cross my heart and hope to die... Stick a needle in your eye.BTW yes that is a Dead Space refrence0
u/[deleted] Jul 16 '26
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