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Post by the light works on Dec 21, 2015 3:47:25 GMT
our discussion on the Star Wars thread reminded me of the fad in the 90s, where a random looking pixellated image in a book or on a poster would supposedly form a 3D image if you unfocused your eyes and stared at it just so. the book I had also had a couple of regular images which you could practice with, and I could see those in 3D, but I could never resolve the other images. en.wikipedia.org/wiki/Magic_Eyeis there any way of proving to a person who cannot resolve the images that such images exist? |
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Post by GTCGreg on Dec 21, 2015 4:05:38 GMT
I could never see any of these images. My wife and kids had no problem resolving them and I had no doubt they could see them. It just never worked for me no matter how long I would stare at them.
I never thought of asking, but did the images appear to be 3D?
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Post by the light works on Dec 21, 2015 4:36:49 GMT
I could never see any of these images. My wife and kids had no problem resolving them and I had no doubt they could see them. It just never worked for me no matter how long I would stare at them. I never thought of asking, but did the images appear to be 3D? the ones that I could resolve - being ones where there were recognizable images even in 2D did appear in 3D to me. the ones that just appeared to be random spots of color were always random spots of color to me. I rather suspect that visual acuity might play a role in the ability to resolve them. |
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Post by silverdragon on Dec 21, 2015 9:53:23 GMT
My Vision id "Long sight", in that I can see things at distance better than most, but am bloody useless at anything close range. Even with my Glasses on, I can not do those 3D "Magic eye" images. I am not alone.... From here. mentalfloss.com/article/29771/why-cant-some-people-see-magic-eye-picturesIts a good article and explains a lot quite quickly. I know I have "problems" in my eyes, one "doctor" told me I have no stereoscopic vision and zero depth of field ability, this was embarrassing to say the least, because his magic box of tricks on the desk was useless, yet I can tell how far something is away at a distance of 150 yards to say the nearest two feet.... I have no problems in the real world at all and can judge distance pretty well, yet his box says I see the world in only two dimensions?... I went to a "Real" opticians and got a "Real" diagnosis. The real diagnosis is I need to wear my glasses on any optical test like that, which that doctor did not do, because I can focus on anything that "close" And the other thing with the Magic Eye?... My own eyesight is trained to see the world as it is and see through optical illusions... I cant let that relax enough to see the illusion. The magic eye thing is all about being able to see an illusion..... I cant do that. Edit, I now have a headache from tying to see through one that is supposed to have a how-to on how to see the image... |
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Post by silverdragon on Dec 21, 2015 9:59:17 GMT
Just a mention, am I the only one to get headache from 3d specs?...
Yeah, I have a problem viewing in 3d as well.
I can see 3d films, its quite good, I do get the full effect, but....
Ok, so the screen is far enough away that I should not need glasses, as at that distance, my eyesight is perfect.
But those damn glasses hurt my eyes?... and I dont know why.
Anyone else or is it just me?...
And to be honest, after the novelty wears off, well, the novelty has worn off, so whats the big deal?..
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Post by the light works on Dec 21, 2015 15:46:39 GMT
Just a mention, am I the only one to get headache from 3d specs?... Yeah, I have a problem viewing in 3d as well. I can see 3d films, its quite good, I do get the full effect, but.... Ok, so the screen is far enough away that I should not need glasses, as at that distance, my eyesight is perfect. But those damn glasses hurt my eyes?... and I dont know why. Anyone else or is it just me?... And to be honest, after the novelty wears off, well, the novelty has worn off, so whats the big deal?.. Mrs TLW has the same complaint. the explanation is actually rather simple - the glasses are cheap. if your vision is borderline anyway, they will push it over the edge, and your eyes will pitch a fit - which arrives in the form of a headache. |
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Post by GTCGreg on Dec 21, 2015 16:22:05 GMT
Yes, 3D glasses give me a headache. As I mentioned before, one of my eyes is good for closeup and the other for distance. My brain just ignores the eye that isn't being used. As another side effect of this my eyes don't even try to track one another. If I am reading something, I use my close up eye and it can track the printing. My far eye doesn't move nearly as much. I ran into a real problem when I developed a cataract on my right (reading) eye. I had to use reading glasses so my left (distance) eye could focus on what I was trying to read. While everything was clear with the glasses, I still had great difficulty reading because my left eye didn't know how to track a printed sentence.
Using only one eye does not mean you can only see in 2D. Your brain uses other tricks to figure out distance such as moving your head slightly and analyzing how the image changes and then translating this to calculate distance. It is done completely in the subconscious. Like SD, I can guess distances as well as a person with normal vision. Where it get's me into trouble is when trying to track a fast moving object coming toward me. This was why I was bad at sports in grade school although I didn't understand the reason until many years later. No matter how much I practiced trying to hit a base ball, I would usually miss it by a mile. I was a little better at catching as the ball was usually moving slower, but was still not as good at it as most kids. I'm sure this is one of the reasons I am not much interested in sports even to this day.
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Post by the light works on Dec 21, 2015 16:36:03 GMT
cheap sunglasses also always gave me trouble. I've also always had a little trouble focusing on fast moving things. it makes it nearly impossible when someone is trying to show me something - they usually put it too close to my face and don't hold it still.
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Post by silverdragon on Dec 22, 2015 10:33:55 GMT
I wonder... in Target shooting, static, I used to be able to score mid to high 90's, but in clay pigeon, useless... I cant do fast moving and small like that.
I had put it down to having to use my back to swing, but I couldnt get other ball sports either?..
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Post by silverdragon on Dec 22, 2015 10:37:35 GMT
cheap sunglasses also always gave me trouble. I've also always had a little trouble focusing on fast moving things. it makes it nearly impossible when someone is trying to show me something - they usually put it too close to my face and don't hold it still. Amusing story, "friend" of mine goes to show me something on his phone, I back away, "Get hold of it you need to see it..." "I have already" "You cant see it from there" So I read out what was on the screen..... from 15 ft away.... He still cant work that one out. |
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Post by the light works on Dec 22, 2015 15:22:25 GMT
I wonder... in Target shooting, static, I used to be able to score mid to high 90's, but in clay pigeon, useless... I cant do fast moving and small like that. I had put it down to having to use my back to swing, but I couldnt get other ball sports either?.. snap shooting, like clays, I do very well with. I was not bad at paintball, either. static shooting, I am not so good at. as a kid I was mediocre at best at sports. I've figured out over the years that I have certain athletic limitations. my consistency is poor, and while I had pretty good acceleration when I was younger, I had neither the top speed nor endurance to be good at more than a select handful of things. interestingly, bicycling turned out to be one of those things. I guess because I can gear up slightly, so I'm not pedaling as fast, it uses my particular muscle structure more effectively. I guess if I were to compare myself to a car, I'd be a diesel. |
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Post by silverdragon on Dec 23, 2015 9:03:37 GMT
Same here, I remember the time we had a school bike race and my own Road bike complete with 28 by one-and-a-quarter thick road tyres, luggage rack, and obvious "Touring" build, was laughed at until they set the course and I complained that they didnt put any hills in....
Then powered off and only slowed down slightly for the corners....
We had a mile and a half one in four grade hill up out of the village that I used to go up in top gear (We only had 5 back then) every day "Just for fun", it kept my legs in order for all the hill walking I did?.
My sports were not school sports, so I had no interest in footballs hand-egg or anything like that, but white water excited me, and rock climbing was like going up a ladder.
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Post by silverdragon on Dec 23, 2015 9:13:53 GMT
We digress from visual acuity....
Perhaps the fact we never trained for the hand-to-ball skills is why we were never any good at it?.
However, my kids were amazed that here I was, truly the worst football player available, but I can "Bend it like Beckham", and curve a ball with accuracy?.. all that is is knowing where to kick it.
I used to play a LOT of pool and snooker, striking a ball off centre is easy when you know how.
My school football teacher was all "Strike with the side of your foot you have more control"
Here hold my Coke and watch this....
Curve to the top of the net whilst dropping my left shoulder and sending the ball exactly the wrong way....
Its still in the net whats your problem now?..
The best result is to leave the field and leave them wondering just how the hell you did that.
Target, hold, breath, aim, strike, Relax.
My kid now says he has a different way of shooting, watch the sights and bring them to the target?..
Nope.
I watch the target and bring the sights to bear on it.... I know what the sights look like, I dont focus on the cross hairs at all, and I know where they are anyway.
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Post by the light works on Dec 23, 2015 11:51:52 GMT
We digress from visual acuity.... Perhaps the fact we never trained for the hand-to-ball skills is why we were never any good at it?. However, my kids were amazed that here I was, truly the worst football player available, but I can "Bend it like Beckham", and curve a ball with accuracy?.. all that is is knowing where to kick it. I used to play a LOT of pool and snooker, striking a ball off centre is easy when you know how. My school football teacher was all "Strike with the side of your foot you have more control" Here hold my Coke and watch this.... Curve to the top of the net whilst dropping my left shoulder and sending the ball exactly the wrong way.... Its still in the net whats your problem now?.. The best result is to leave the field and leave them wondering just how the hell you did that. Target, hold, breath, aim, strike, Relax. My kid now says he has a different way of shooting, watch the sights and bring them to the target?.. Nope. I watch the target and bring the sights to bear on it.... I know what the sights look like, I dont focus on the cross hairs at all, and I know where they are anyway. I played goalkeeper the times I played. in college, I got a bit of a reputation, because I played in black leather fingerless gloves, and played under the philosophy that if I prevented the shot on goal I didn't need to block it. I also developed the technique that I could deliver the ball to pretty much any point on the field I wanted to, so the leading edge of my team usually started their charge from 3/4 of the way down the field. I think I once, for a lark, went for a goal to goal shot. |
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Post by OziRiS on Dec 28, 2015 23:48:19 GMT
I never thought of asking, but did the images appear to be 3D? They do. I didn't remember until I read your post and found a bunch of the pictures online to test with. But yes, they do actually appear to be in 3D, even when viewed on a computer screen. As for the sports thing you guys have been talking about, when it comes to vision and coordination, I've always had a weird problem that's kind of the opposite of what the rest of you have experienced. I see things perfectly and am able to deconstruct even the most complex mechanics of how athletes do whatever it is they do, right down to the exact sequence of which muscles and tendons do what in which order. I've just never been able to reproduce the movements myself. I know the mechanics of how to perfectly throw a football, how to perfectly swing a tennis racket, how to perfectly perform a roundhouse kick and so on, but I can't for the life of me get my body to actually do any of it very well. I can teach others how to do it though and that p*sses me off immensely, because I'd honestly rather be able to do it myself  |
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Post by GTCGreg on Dec 29, 2015 0:27:59 GMT
I never thought of asking, but did the images appear to be 3D? They do. I didn't remember until I read your post and found a bunch of the pictures online to test with. But yes, they do actually appear to be in 3D, even when viewed on a computer screen. As for the sports thing you guys have been talking about, when it comes to vision and coordination, I've always had a weird problem that's kind of the opposite of what the rest of you have experienced. I see things perfectly and am able to deconstruct even the most complex mechanics of how athletes do whatever it is they do, right down to the exact sequence of which muscles and tendons do what in which order. I've just never been able to reproduce the movements myself. I know the mechanics of how to perfectly throw a football, how to perfectly swing a tennis racket, how to perfectly perform a roundhouse kick and so on, but I can't for the life of me get my body to actually do any of it very well. I can teach others how to do it though and that p*sses me off immensely, because I'd honestly rather be able to do it myself I have a similar problem with art. I am NOT an artist by any stretch of the imagination. I can look at a picture or drawing and analyze it in my head. I know the shapes and how the colors can add depth. I can close my eyes and visualize it perfectly. But try to get my hands to draw it? Impossible. That wiring between my brain and my hands was never installed. It's strange but it only applies to more abstract artwork like people's faces or landscapes. I can visualize the most complex mechanical part and draw it out to perfection. I've given my mechanical drawings to machinists and they've had no problem reproducing the parts I've drawn. But a picture? No way. |
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Post by OziRiS on Dec 29, 2015 1:09:59 GMT
They do. I didn't remember until I read your post and found a bunch of the pictures online to test with. But yes, they do actually appear to be in 3D, even when viewed on a computer screen. As for the sports thing you guys have been talking about, when it comes to vision and coordination, I've always had a weird problem that's kind of the opposite of what the rest of you have experienced. I see things perfectly and am able to deconstruct even the most complex mechanics of how athletes do whatever it is they do, right down to the exact sequence of which muscles and tendons do what in which order. I've just never been able to reproduce the movements myself. I know the mechanics of how to perfectly throw a football, how to perfectly swing a tennis racket, how to perfectly perform a roundhouse kick and so on, but I can't for the life of me get my body to actually do any of it very well. I can teach others how to do it though and that p*sses me off immensely, because I'd honestly rather be able to do it myself I have a similar problem with art. I am NOT an artist by any stretch of the imagination. I can look at a picture or drawing and analyze it in my head. I know the shapes and how the colors can add depth. I can close my eyes and visualize it perfectly. But try to get my hands to draw it? Impossible. That wiring between my brain and my hands was never installed. Know the feeling. When I'm coaching my kid's handball team, I can explain perfectly how the kids are supposed to do a jumpshot for instance, but can I actually show them how it's done? Nope. Not unless I take out my phone and show them a YouTube video of a professional doing it It does give me a serious workout as far as being able to explain things to people, though. The fact that the power in a good jumpshot comes from the second to last step you take before actually jumping and then twisting your torso back to act like a bow might sound easy enough to explain, but try describing it in a way that a 9 or 10-year old will not only be able to understand but put to use afterwards. Not exactly easy, I can tell you that!  |
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Post by silverdragon on Dec 29, 2015 8:11:33 GMT
Dependant on the sport.
I can, no, strike that, I COULD manage a decent attempt at white water Canoe stuff, but since my back injury....
But never at "Competition times"
Thing is, I play to enjoy, and enjoy when I play, so I never actually got the idea that what I was doing should be done at record speeds.... I we enjoying it too much to waste it as effort and task, too much like hard work taking over what I enjoy?...
Bike racing, I spent too much time having a laugh to ever threaten the lap times.
The joy of for instance getting the Goose-neck at Cadwell Park right, getting the sequence of foot over the pedal left right lean into it and squeeze without scraping your foot, yeah, I enjoy that, but then there I am raising the front wheel on a power wheelie on the back straight but the bike wasnt the one that would do that in record times.
I had more fun doing the same track on a 100cc bike throwing it about like a toy.
It was FUN.....
And only dangerous to a point.
Thats the thing, how often do you get to play on a real race track?... enjoy it whilst you can.
Competing is all about the enjoyment.
Finishing is everything, being 1st is just extra?.
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