@@plazmotech5969 Ah! But what about the red light from the camera then? (Or why was the fractal red to begin with? I thought it came from the rec light of the webcam.)
@@lonestarr1490 It’s a stable shape with the camera position and rotation of the videos on the screen. Some black will creep in from the outside due to the rotation, but there’s certain spots that stay blue because the video rotation perfectly matches. The blue spots are the spots that are blue because the last frame was already blue at the correct position basically
@@too-many-choices Instead of clearing the sky with white or some other color, it simply stop drawing it all together, leaving whatever was there untouched. If then something else is drawn over it, like for example, the map, it stays in the skybox forever, similar to the recording/viewport effect shown in the video.
Very similar to J. P. Crutchfield, "Space-Time Dynamics in Video Feedback". Physica 10D (1984) 229-245. (though I believe that used a more involved taxonomy for the various spaces of possible outcomes, however didn't get into multi-projector work). Neat stuff!
I've done many experiments myself 20 years ago. Man, the things that came out from This feedback art, are amazing. Almost like liquid plasma animations. It's actually creating frequencies and a sort of a phase modulation with video signals.
This sounds like something I just remembered when I saw the video. I had a VHS portable camera setup years ago, and I remember messing about with feedback by pointing the camera at the screen as it monitored itself, creating these whisp-y effects. Is that the same thing? Wish I still had it!
Video feedback can get so weird. Like insane bubbling plastic neon, stuff much deeper than the initial images. My friend and I used to play with it using multiple CRT TVs and an 80s/90s VHS camera plugged into the main TV, then pointing it at another screen with static on it and then back to the looping screen, introducing new signal into the loop. It was mind blowing. I wish I remember exactly what we did but this was over a decade ago. I highly recommend checking out David Blair's TH-cam channel. He built multiple iterations of an amazing mechanical HD video feedback device. It's extremely impressive and the only digital bits are the screens, cameras, and signal routers on the latest version. The rest is analog, no computation, but it's super meta visual feedback, using multiple reflected screens, feeding back into more than one camera, combining results etc. Words don't really explain it well.
I'm sure almost everyone has seen a camera pointed at its own output before (particularly if they aren't a zoomer), but it's interesting to realize that all it takes for that phenomenon to become a fractal is for a 2nd copy of the video feed to be displayed to the camera.
@@raresmircea the project-record system is iterative, and each cycle has all the points of light in the recorded frame move to the inner display frame (which is presumably smaller). When there's a single projection, you just get a tunnel effect as the next copy is just scaled down from the previous. But with two projections, the next copy goes to two places, and if they overlap, you mix points from both. This overlay of one projection with the other creates places where the image is brighter or darker than originally, and since every redraw will use the previous image as its starting point, every redraw you get a different sort of interference pattern. Eventually all points end up in equilibrium, where they remain with the same brightness from one frame to the next, and that's the fractal we observe. Probably not a complete explanation but it's late here so I'll leave it at that.
@@andremeIIo Fantastic, thanks! Also, shifting the camera is important i’d assume (along with superposing the two windows on the screen), otherwise there’s nothing preventing us from just getting two tunnels.
@@322jed I think the ship has already sailed zoomer has reached critical mass. Interesting how basically all the names for the generation are a previous generation's name with the first letter swapped out with a "z"
something similar, though not fractal like was howlround, where a camera was pointed at a CRT. it's the effects used in the earliest dr who shows' title sequence.
That was actually a whole intro chapter in a math book called "Fractals" I read in high school. It literally explained how a CRT TV and a live camera would create a feedback loop capable of creating interesting patterns. There would be an added effect caused by the scan lines of the TV and the camera not lining up, especially if the camera was rotated.
I think the cooles effect was the color change by putting in a bit of differently colored paper. Filming the screen and then displaying the image on that screen is a bit like a flip flop, thinking about it.
It sounds less serious than it actually is. Almost all early television was broadcast live, as there was no good way to record (and play back) the stuff.
@@Scarabola Home television began officially in the London area in 1936 (later to the Midlands and North in 1937-38) and in parts of the US in 1941. Unofficially, Baird's system transmitted very very low quality video (30, then 60 and 120 line pictures, mostly in amber rather than B&W) on medium wave AM radio to hobbyists in the early 30s However, launching an expensive plaything in the teeth of the Depression wasn't a smart business move. The Berlin Olympics events were also transmitted to "Fernsehstuben" (TV viewing booths, more like small temporary cinemas) in 1936. As economic recovery started, other countries started building up new TV systems as a complement to their radio broadcasts.
It doesn't stop at fractals, you can create something that looks like cellular automata and turing patterns through a similar process, here's an example produced using 1970's equipment: th-cam.com/video/WS8v6jKPP68/w-d-xo.html
he got me feeling like every secret of life and the universe is hidden in this video I want to send him a link to this vid and the website, he'd probably jizz his pants
This exact technique of overlapping rectangles forming an iterated function system is described well in chapter 2 of Kenneth Falconer's very short introduction to fractals. Beautiful stuff.
I did a lot of similar projects using Flash, back in the early '00s. One of the coolest effects I was able to produce was a rotating 3D cube that was texture-mapped with a distorted version of the screen itself, which gave similar effects as these fractals. Messing around with these types of fractals is so much fun because it doesn't take much CPU power and is completely real time. What I think is really funny is that pointing mics at speakers is painful, but pointing cameras at their own live video feeds is awesome. I guess the only time I can think of where audio feedback isn't terrible (in a live setting) is if you have an electric guitar near its own amp, and you can get some cool feedback effects that way.
“There’s something so fun and charming about physically manipulating fractals with your hand” this quote reminds me of an idea that I had which is quite like this, but with sound waves. A program that displays one cycle of a wave that gets repeated over a certain frequency, and you’re able to drag and manipulate the wave however you like
Version I made without cam, press 1 - 4 and use your mouse to change location of cameras (there are two right now, want me to add more?) www.shadertoy.com/view/flfSzs
Video feedback is so fun to play with. Back in the day, I was part of a student tv studio at school where they used old tube based cameras. We were quickly warned against creating video feedback. The concern was that if not carefully controlled that it would quickly overrun the camera's tubes maybe damaging the signal circuits and cause burn-in on the monitors. Of course, we would still do it until we were caught. Sadly, with a single camera-monitor setup, the best we created was a very basic fractal pattern; nothing as great as what you're showing.
Theres a few pages dedicated to this in Godel Escher Bach by douglas hofstadter. He even explores how you can get oscialations without even moving the camera
@@Miyelsh yes! that was one of my favorite chapters, i enjoyed all of the diagrams and how he characterized the different kinds of emergent behaviors (along with the tie in to the whole theme of self reference)
Most fascinating part of your setup is using two or more virtual screens. In year 1994, I have been fooling around with positive feedback looping my 100 Hz 16:9 TV (analog, CRT , PAL, 576i - what heavy piece of about 32'' display) with the live view of my Hi8 video camera (with integrated analog recording/playing on/from a magnetic tape boxed in a truly small plastic cassette system - at least in comparison with silly, but most common VHS standard cassettes), interconnected by a S-Video cable (separate video or Y/C are synonyms). As expected, this generated kind of infinity mirror. When I started moving or turning the video camera I created wonderful spinning spirals, most of the white or blue colored - sometimes they started pulsing slowly or flashing fast. Truly fascinated, I spent for sure at least one hour craving for the most overwhelming effect. What a pity, I was not recording this pleasure of old school analog equipment. Feed back looping 4k digital video live stream from my DLSR on a 4k 27'' LCD display did not create the same amazing effects lately. Now, I very thank You for Your video clip here - it opens me the door of new perceptions of a much greater space of fantastic worlds to visit. quantenkristall aka FarbigeWelt alias Michael Trösch (born end of May 1973).
"Space-Time Dynamics in Video Feedback" by Jim Crutchfield is probably the best example of this I've seen. Analogue fractals made in the 1980's It's on yt here: th-cam.com/video/B4Kn3djJMCE/w-d-xo.html Seriously some of the stuff in that film is almost magic.
I had a few TVs and a few security cameras as a kid. Used to do this all the time. And yes is works really nice with a pair of projectors pointed at the same screen at different angles. nice video!
this is unbelievably cool, and I bet you could set it up entirely digitally in a game to move with the player's first person camera movement! If I knew how to code I would try it in an instant, maybe someday!
as a boomer I can tel you they did do it. In the 70's at school we had a closed circuit TV station and often pointed the cameras at the TV screens to create trippy FX too, many of the 60's and 70's music clips featured these effects.
My brother and I did something similar with a camera upside down (with some tilt) pointed at the TV. Turn the colour and contrast up and adjust the brightness for a black screen. Then put stuff inbetween camera and tv. This is the next level! Multiple viewports! My brother would have been impressed!
It's not all analog. The computations are happening in the digital camera sensor, in any software running, and the digital display. Analog video cameras are getting scarce. But, it doesn't matter if anything is analog or digital. Both are cool. Digital can do things analog can't, and vice versa.
So cool! First saw this in a demo for a 3trinsRGB+1c analog video synth demo, where they feed the output of a camera facing the output screen for the video synth back into the video synth and process it to make them even cooler.
I was doing this with my analog video gear in the mid 1970s and I was far from the first. You are correct that they didn't do it in the 1920s or 30s. The cameras were not sensitive enough to see the light output of early video screens until the 1950s. See: Ernie Kovacs for early TV effects. Not necessarily fractals, but he would have loved that.
I did this in 1978 in high school w. our home tv and a borrowed jvc reel (pre vhs) camera+recorder. I managed to "tip balance" the b/w feedback pattern with the zoom and make a circle of points and other weird patterns. I also recorded it on the recorder. Music score was Sonic seasonings by Wendy Carlos. Noone was interested.
When people had those old video cameras there was an urban legend that if you did this it could break the camera somehow. Nobody could explain why but they instinctually felt like there was something so powerful happening that the camera or TV would be overloaded and break.
I keep seeing hints like this of a new theory of intelligence I've had. It involves feedback communication between multiple independent actors. GANs, are one example, this is another. Conversation between people, and even communication between different lobes of the brain. It all seems to boil down to using feedback to find fixed points.
I did this with my dad's old VHS cam and a tube TV. It was pretty rad. Digital and analog cameras produce totally different kinds of artifacts / effects on the screen, too.
Wow, that doped soundtrack really complements the video. Pity that there's no such account at the Soundcloud anymore. I did something similar with our VHS camera and a TV set back when I was like 12yo but never thought that using two cameras and somehow mixing two projections will make so much difference.
Can't help thinking of the Bohemian Rhapsody video while watching this. That's super cool how it makes delayed spiraly echoes though, and I loved how you changed the color with the blue post it note ^.^
Cool! I did this kind of "fractals" using video feedback in the 1980's using cathode-ray-tube television and vidicon-tube color video camera. It actually works with only one monitor/projector too, because if they are rotated in a certain way, or perhaps the camera should be turned upside-down - I don't remember exactly, the scanning delays of the tubes create feedback-loops in the signals and fractals emerge. Though, it might not work with digital displays and cameras in the same way, and certainly the fractals will not be as multifaceted.
Very clever and beautiful! I need to play with this, thanks for making and sharing the site. It's really going to lengths for the community. :) But i agree, this needs to be done in analogue.
Fractal addiciton detected! Seriously though, what you make is really amazing. 3D Fractals look beautiful, Marche Marcher is amazing and this, generating fractals live, is awesome. I don't have the hardware to try it out myself but from what I see in the video, I love it.
Nice. Perfect visual demonstration of iterated function systems. To the point it shows much of the properties of IFS. Like the fractal shape being the same for arbitrary start points and only depending on the transforms. Except for how it's coloured in. All perfectly demonstrated by a physical embodiment of the math involved :D
Sheesh... As somebody who has dabbled with fractal art I find this utterly fascinating. The fractals are even beautiful. In a way that is not always easy to do. But, this is just spontaneous. Incredible.
0:36 My first thought was when I used to connect a video camera up to a TV as a kid and teen to create very cool recursive images on the TV, so imagine my surprise when seconds later at 0:41 happens.
A very similar technique is used in the app Fraksl fraksl.com/ Instead of using the camera, the feedback loop is implemented entirely in software and images are created by inverting the colors at every loop.
The National Museum of Mathematics in New York City has an exhibit where you can play with this effect in real time, using multiple movable cameras aimed at a single large screen. (It's using modern video equipment, though.)
![[#2024MAMA] ROSÉ (로제), Bruno Mars - APT. | Mnet 241122 방송](http://i.ytimg.com/vi/dgGqD28J6aQ/mqdefault.jpg)
"It was called television."
I have no idea what that is.
Must be some kind of ancient technology used before our time
My parents used television in the 00s
What is 'television'?
can you eat it?
Zombies usually don't have idea other than what exists next to their hands and eyes .. a mobile is also a TV duh !
@@_skylined Sounds like a made up word. Maybe it has to do with telemarketers?
My favorite part is when you paint the fractal blue by just passing a post it in front of the camera
I can't wrap my head around why it stays blue after he takes the post it away ...
@@lonestarr1490 because the fractals being displayed are blue and therefore the factals being repeated are blue :)
@@plazmotech5969 Ah!
But what about the red light from the camera then? (Or why was the fractal red to begin with? I thought it came from the rec light of the webcam.)
@@lonestarr1490 it may be his hand
@@lonestarr1490 It’s a stable shape with the camera position and rotation of the videos on the screen. Some black will creep in from the outside due to the rotation, but there’s certain spots that stay blue because the video rotation perfectly matches. The blue spots are the spots that are blue because the last frame was already blue at the correct position basically
When you accidentally delete the skybox in the source engine
@@too-many-choices Instead of clearing the sky with white or some other color, it simply stop drawing it all together, leaving whatever was there untouched. If then something else is drawn over it, like for example, the map, it stays in the skybox forever, similar to the recording/viewport effect shown in the video.
Oof
ah yes, the famous smear effect.
as a hammer user i approve this message
@@128wk hall of mirrors
I saw this exact setup on a CRT at a hippie festival in the middle of the desert. It was so cool seeing the mystery broken down in this video!
Burning man?
This guy really loves fractals
Can you blame him?
Then what can you say about Maths Town?
Who doesn't, it's a beautiful form of art
@@animal_gal_adventures9885 It's impressive that math is so good at art
Who doesn't
Douglas Hofstadter has written about this in his book, called I Am A Strange Loop. Really fun to read, if you're into fractals.
his first book too has a section with different effects from a camera looking into a crt tv its pointing to
That fucking book man. Damn near destroyed my life by showing me that a supernatural explanation for consciousness was superfluous.
What a crazy cool book, i thought of that as well
Goddel, Escher, Bach: An Eternal Golden Braid
Oh, I hope he has seen this video by now. Reread with pleasure. And it's fun to read if you're conscious and you know it -clap your hands-
Fractals have always fascinated me, bot because of their appearance in math and nature and because of their simple yet complex imagery.
Very similar to J. P. Crutchfield, "Space-Time Dynamics in Video Feedback". Physica 10D (1984) 229-245. (though I believe that used a more involved taxonomy for the various spaces of possible outcomes, however didn't get into multi-projector work). Neat stuff!
ooh i wanna find that. im not quite tech enough to get journal articles... but i bet its an interesting read/skim anyway
@@michaelwerkov3438 You'll definitely like this: th-cam.com/video/B4Kn3djJMCE/w-d-xo.html
Was just about to post this haha
@@asdfjkli Fantastic link, thanks so much!
I've done many experiments myself 20 years ago. Man, the things that came out from This feedback art, are amazing. Almost like liquid plasma animations. It's actually creating frequencies and a sort of a phase modulation with video signals.
This sounds like something I just remembered when I saw the video. I had a VHS portable camera setup years ago, and I remember messing about with feedback by pointing the camera at the screen as it monitored itself, creating these whisp-y effects. Is that the same thing? Wish I still had it!
Same here. 😁
Sounds like a job for british youtuber extraordinaire techmoan.
Or Technology Connections
Sounds like xnopyt
Or maybe CuriousMarc
Or LOOK MUM NO COMPUTER.
@@Rob_WDefo LMNC!
Video feedback can get so weird. Like insane bubbling plastic neon, stuff much deeper than the initial images. My friend and I used to play with it using multiple CRT TVs and an 80s/90s VHS camera plugged into the main TV, then pointing it at another screen with static on it and then back to the looping screen, introducing new signal into the loop. It was mind blowing. I wish I remember exactly what we did but this was over a decade ago. I highly recommend checking out David Blair's TH-cam channel. He built multiple iterations of an amazing mechanical HD video feedback device. It's extremely impressive and the only digital bits are the screens, cameras, and signal routers on the latest version. The rest is analog, no computation, but it's super meta visual feedback, using multiple reflected screens, feeding back into more than one camera, combining results etc. Words don't really explain it well.
I'm sure almost everyone has seen a camera pointed at its own output before (particularly if they aren't a zoomer), but it's interesting to realize that all it takes for that phenomenon to become a fractal is for a 2nd copy of the video feed to be displayed to the camera.
It’s interesting alright but i haven’t realized anything about why that’s so
I'm sure it can be set up on tiktok someway
@@raresmircea the project-record system is iterative, and each cycle has all the points of light in the recorded frame move to the inner display frame (which is presumably smaller). When there's a single projection, you just get a tunnel effect as the next copy is just scaled down from the previous. But with two projections, the next copy goes to two places, and if they overlap, you mix points from both. This overlay of one projection with the other creates places where the image is brighter or darker than originally, and since every redraw will use the previous image as its starting point, every redraw you get a different sort of interference pattern. Eventually all points end up in equilibrium, where they remain with the same brightness from one frame to the next, and that's the fractal we observe. Probably not a complete explanation but it's late here so I'll leave it at that.
@@andremeIIo Fantastic, thanks! Also, shifting the camera is important i’d assume (along with superposing the two windows on the screen), otherwise there’s nothing preventing us from just getting two tunnels.
@@322jed I think the ship has already sailed zoomer has reached critical mass. Interesting how basically all the names for the generation are a previous generation's name with the first letter swapped out with a "z"
something similar, though not fractal like was howlround, where a camera was pointed at a CRT. it's the effects used in the earliest dr who shows' title sequence.
That’s what I thought of while watching this
That was actually a whole intro chapter in a math book called "Fractals" I read in high school. It literally explained how a CRT TV and a live camera would create a feedback loop capable of creating interesting patterns. There would be an added effect caused by the scan lines of the TV and the camera not lining up, especially if the camera was rotated.
I think the cooles effect was the color change by putting in a bit of differently colored paper.
Filming the screen and then displaying the image on that screen is a bit like a flip flop, thinking about it.
“No one was livestreaming in the 1930’s, right?”
“Actually they were, it’s called television.”
SAVAGE
It sounds less serious than it actually is. Almost all early television was broadcast live, as there was no good way to record (and play back) the stuff.
What were they streaming? Home television wasn't a thing til the 50s.
@@Scarabola World war 2 MLG compilations. They probably just called them news then.
@@Scarabola
Home television began officially in the London area in 1936 (later to the Midlands and North in 1937-38) and in parts of the US in 1941. Unofficially, Baird's system transmitted very very low quality video (30, then 60 and 120 line pictures, mostly in amber rather than B&W) on medium wave AM radio to hobbyists in the early 30s However, launching an expensive plaything in the teeth of the Depression wasn't a smart business move.
The Berlin Olympics events were also transmitted to "Fernsehstuben" (TV viewing booths, more like small temporary cinemas) in 1936. As economic recovery started, other countries started building up new TV systems as a complement to their radio broadcasts.
That's what came into my mind
It doesn't stop at fractals, you can create something that looks like cellular automata and turing patterns through a similar process, here's an example produced using 1970's equipment: th-cam.com/video/WS8v6jKPP68/w-d-xo.html
He will invent time travel soon at this rate.
True
But this is basic
And will explain it so simply too
@@Anikin3- time travel could be basic too. it could just be that no one has discovered it yet 🤔
We're already traveling through time.
The MoMath museum has this and it's REALLY cool!!
When I was a kid, I used to think that this kind of thing would blow something up in a television studio.
your videos are so amazing dude, please never stop
Hofstadter talks about this in great detail in 'I am a strange loop'
highly recommended!
the simpler version already appeared in his first book too
he got me feeling like every secret of life and the universe is hidden in this video
I want to send him a link to this vid and the website, he'd probably jizz his pants
@@JrIcify he must have an e-mail address, right? I don't see any harm in sending him a link to the site : p
Really cool demonstration of how self-reference naturally leads to chaos and fractals.
This exact technique of overlapping rectangles forming an iterated function system is described well in chapter 2 of Kenneth Falconer's very short introduction to fractals. Beautiful stuff.
I did a lot of similar projects using Flash, back in the early '00s.
One of the coolest effects I was able to produce was a rotating 3D cube that was texture-mapped with a distorted version of the screen itself, which gave similar effects as these fractals.
Messing around with these types of fractals is so much fun because it doesn't take much CPU power and is completely real time.
What I think is really funny is that pointing mics at speakers is painful, but pointing cameras at their own live video feeds is awesome. I guess the only time I can think of where audio feedback isn't terrible (in a live setting) is if you have an electric guitar near its own amp, and you can get some cool feedback effects that way.
The concept of infinity never ceases to amaze me.
Gonna burn a hole in my brain until I find a way to do this with my own cube-based fractals.
Analog version on old equipment will be mindblowing
Yeah, no lag!
3:00 That one wins. I love how colorful it is and how it fades out into smaller spirals.
This guy always put here making novel fractal content just warms my heart - great video!!
Get this to technology connections!!! Its right up his alley for doing it on original equipment
Fractals are awesome
I agree
amojg us
@@fractal5764 lmaooo
(•_) ` ` (_•)
Amo ` Yes.
ngu
sis
coo
l.
well this is a comment by someone
“There’s something so fun and charming about physically manipulating fractals with your hand” this quote reminds me of an idea that I had which is quite like this, but with sound waves. A program that displays one cycle of a wave that gets repeated over a certain frequency, and you’re able to drag and manipulate the wave however you like
Version I made without cam, press 1 - 4 and use your mouse to change location of cameras (there are two right now, want me to add more?)
www.shadertoy.com/view/flfSzs
Video feedback is so fun to play with. Back in the day, I was part of a student tv studio at school where they used old tube based cameras. We were quickly warned against creating video feedback. The concern was that if not carefully controlled that it would quickly overrun the camera's tubes maybe damaging the signal circuits and cause burn-in on the monitors. Of course, we would still do it until we were caught. Sadly, with a single camera-monitor setup, the best we created was a very basic fractal pattern; nothing as great as what you're showing.
Theres a few pages dedicated to this in Godel Escher Bach by douglas hofstadter. He even explores how you can get oscialations without even moving the camera
Was gonna say this. The book was written in the 70s, and done using analog tv camera.
@@Miyelsh yes! that was one of my favorite chapters, i enjoyed all of the diagrams and how he characterized the different kinds of emergent behaviors (along with the tie in to the whole theme of self reference)
Most fascinating part of your setup is using two or more virtual screens. In year 1994, I have been fooling around with positive feedback looping my 100 Hz 16:9 TV (analog, CRT , PAL, 576i - what heavy piece of about 32'' display) with the live view of my Hi8 video camera (with integrated analog recording/playing on/from a magnetic tape boxed in a truly small plastic cassette system - at least in comparison with silly, but most common VHS standard cassettes), interconnected by a S-Video cable (separate video or Y/C are synonyms). As expected, this generated kind of infinity mirror. When I started moving or turning the video camera I created wonderful spinning spirals, most of the white or blue colored - sometimes they started pulsing slowly or flashing fast. Truly fascinated, I spent for sure at least one hour craving for the most overwhelming effect. What a pity, I was not recording this pleasure of old school analog equipment. Feed back looping 4k digital video live stream from my DLSR on a 4k 27'' LCD display did not create the same amazing effects lately. Now, I very thank You for Your video clip here - it opens me the door of new perceptions of a much greater space of fantastic worlds to visit. quantenkristall aka FarbigeWelt alias Michael Trösch (born end of May 1973).
This is incredible! So fundamentally interactive with the use of your hands and everyday objects. The possibilities seem endless... .
You are just an amazing person, CodeParade. Not only does this look cool, but it's simple and you even made a website for it.
Only found this channel a day or 2 ago. Easilly one of the best out there for content. Amazing stuff.
Awesome update to the old process. Iterative analog. It's called video feedback. We used to do it all the time. Nice multiple cam version
very clever! reminds me of the fractals in PowerPoint stuff people have been doing for a while, but the analog aspect makes it new all over again.
The book "Gödel, Escher, Bach: an Eternal Golden Braid" has pictures of this sort of thing with analog TV.
man why is your channel such a goldmine
Amazing!!! Best content on youtube I saw in years! Congratulations! This one deserves go viral!
This fractal-ly video feedback loop is a main point in Douglas Hofstadter's marvelous book I am a strange loop (2006)
"Space-Time Dynamics in Video Feedback" by Jim Crutchfield is probably the best example of this I've seen. Analogue fractals made in the 1980's
It's on yt here: th-cam.com/video/B4Kn3djJMCE/w-d-xo.html Seriously some of the stuff in that film is almost magic.
I had a few TVs and a few security cameras as a kid. Used to do this all the time. And yes is works really nice with a pair of projectors pointed at the same screen at different angles. nice video!
I'm genuinely surprised this *wasn't* done often, its absolutely mesmerising!
this is unbelievably cool, and I bet you could set it up entirely digitally in a game to move with the player's first person camera movement! If I knew how to code I would try it in an instant, maybe someday!
So cool to see new images forming each time from a limit.
I cannot like this video hard enough. So many shapes and colors. Radical.
as a boomer I can tel you they did do it. In the 70's at school we had a closed circuit TV station and often pointed the cameras at the TV screens to create trippy FX too, many of the 60's and 70's music clips featured these effects.
My brother and I did something similar with a camera upside down (with some tilt) pointed at the TV. Turn the colour and contrast up and adjust the brightness for a black screen. Then put stuff inbetween camera and tv.
This is the next level! Multiple viewports! My brother would have been impressed!
This guy wins the internet.
It's not all analog. The computations are happening in the digital camera sensor, in any software running, and the digital display. Analog video cameras are getting scarce. But, it doesn't matter if anything is analog or digital. Both are cool. Digital can do things analog can't, and vice versa.
I hope this doesn’t get buried but I found this one guy on youtube who did this 10 YEARS ago. I believe his name was @RagingRoosevelt.
This would have been so cool for Psychedelic Rock Concerts; It reminds me of the liquid projections bands would use
It really makes clear shows you how fractals emerge from feedback loops, that's neat
So cool! First saw this in a demo for a 3trinsRGB+1c analog video synth demo, where they feed the output of a camera facing the output screen for the video synth back into the video synth and process it to make them even cooler.
When you described the process I didn't think the fractals would look nearly as cool.
well, uh, time to set up the projector lol :)
I was doing this with my analog video gear in the mid 1970s and I was far from the first. You are correct that they didn't do it in the 1920s or 30s. The cameras were not sensitive enough to see the light output of early video screens until the 1950s. See: Ernie Kovacs for early TV effects. Not necessarily fractals, but he would have loved that.
I did this in 1978 in high school w. our home tv and a borrowed jvc reel (pre vhs) camera+recorder. I managed to "tip balance" the b/w feedback pattern with the zoom and make a circle of points and other weird patterns. I also recorded it on the recorder. Music score was Sonic seasonings by Wendy Carlos. Noone was interested.
This is, by far, the coolest thing I have seen on the internet!
When people had those old video cameras there was an urban legend that if you did this it could break the camera somehow. Nobody could explain why but they instinctually felt like there was something so powerful happening that the camera or TV would be overloaded and break.
What an amazing concept! Thanks for putting this together. I enjoyed the play and learned from it.
television sounds so cool. it's amazing what they did with the limited technology of their time
I keep seeing hints like this of a new theory of intelligence I've had. It involves feedback communication between multiple independent actors. GANs, are one example, this is another. Conversation between people, and even communication between different lobes of the brain. It all seems to boil down to using feedback to find fixed points.
Dude this is amazing, what a champion. Instant music video, so using this thank you
I did this with my dad's old VHS cam and a tube TV. It was pretty rad. Digital and analog cameras produce totally different kinds of artifacts / effects on the screen, too.
Wow, that doped soundtrack really complements the video. Pity that there's no such account at the Soundcloud anymore.
I did something similar with our VHS camera and a TV set back when I was like 12yo but never thought that using two cameras and somehow mixing two projections will make so much difference.
Can't help thinking of the Bohemian Rhapsody video while watching this. That's super cool how it makes delayed spiraly echoes though, and I loved how you changed the color with the blue post it note ^.^
I wouldn't be surprised if someone like Len Lye tried something like this. That man was 40 years ahead of his time.
A friend and I used multiple capture windows on OBS along with hue/sharpening effects to make some very trippy fractal imagery!
That was an incredible idea! Never thought like that before.
Cool! I did this kind of "fractals" using video feedback in the 1980's using cathode-ray-tube television and vidicon-tube color video camera. It actually works with only one monitor/projector too, because if they are rotated in a certain way, or perhaps the camera should be turned upside-down - I don't remember exactly, the scanning delays of the tubes create feedback-loops in the signals and fractals emerge. Though, it might not work with digital displays and cameras in the same way, and certainly the fractals will not be as multifaceted.
Very clever and beautiful! I need to play with this, thanks for making and sharing the site. It's really going to lengths for the community. :) But i agree, this needs to be done in analogue.
This was incredible; thank you so much for sharing!
cool! I sometimes played with feedback loop from vhs camera hooked up to a tv. I'll have to try to use this setup with your demo now :)
Fractal addiciton detected!
Seriously though, what you make is really amazing. 3D Fractals look beautiful, Marche Marcher is amazing and this, generating fractals live, is awesome. I don't have the hardware to try it out myself but from what I see in the video, I love it.
I used to stare through a kaleidoscope as a kid…for hours. now this.
try psychedelics, same effect
Frax is a pretty cool fractal app, great video
Truly beautiful and mesmerizing...
This is amazing, I appreciate your work driven by passion a lot!
Nice. Perfect visual demonstration of iterated function systems. To the point it shows much of the properties of IFS. Like the fractal shape being the same for arbitrary start points and only depending on the transforms. Except for how it's coloured in. All perfectly demonstrated by a physical embodiment of the math involved :D
this is so cool! thank you for letting us try it on the website :)
Sheesh... As somebody who has dabbled with fractal art I find this utterly fascinating. The fractals are even beautiful. In a way that is not always easy to do. But, this is just spontaneous.
Incredible.
theres a whole scene about analog video art, fractals, feedback, and glitching!
0:36 My first thought was when I used to connect a video camera up to a TV as a kid and teen to create very cool recursive images on the TV, so imagine my surprise when seconds later at 0:41 happens.
2:06 best part
That and 2:40 the bit with the blue sticky notes.
i tried playing with a screenrecording preview that makes the mousearrow slowly smaller, but this is so much cooler. youre a genius!
I wish I was passionate about something as much as this guy is about fractals.
Reminds me of myself in the 1990s pointing a camcorder at the TV with the date/time display on and turning/zooming the camcorder.
I love your vids!
You just made me SO F*KING HAPPY
There's a scene in the music video for Queen - Bohemian Rhapsody which was filmed using this technique.
A very similar technique is used in the app Fraksl fraksl.com/
Instead of using the camera, the feedback loop is implemented entirely in software and images are created by inverting the colors at every loop.
Ура, кто-то вспомнил про Fraksl
I remember having a kaleidoscope as a kid. It was so pretty. And fractal looking.
The National Museum of Mathematics in New York City has an exhibit where you can play with this effect in real time, using multiple movable cameras aimed at a single large screen. (It's using modern video equipment, though.)