Making a Working Computer in Poly Bridge 3

[@ReidCaptain]

Sorry for the delay in content, I just needed a bit of a break. I'm hoping to have a video out once a week from now on but I may still miss here and there. My goal is to try to make some more involved projects that I've had on my backburner for a while, so there should be some good stuff on the way.

[@TakabaraGaming]

1ST

[@R-BGamingUK]

No wonder theres been 3 weeks since the last video

[@Gooporini]

One video a week seems insane for how hard these projects look.

[@phibik]

Bro these projects take 2 degrees, 3 masters, and being a doctor in math, we can wait more than 1 week.

[@cartatowegs5080]

Your content is great and the fact that you can do these every week is crazy. Dw abt the delay

[@austinestep8461]

Surprisingly this is actually a really elegant explanation of logic gates, I don’t know if that was the plan but well done.

[@StephenHall-zz2ym]

The pointer reminds me of a Turning Machine. Building one would be cool.

[@mobcont8335]

Not only that but he also encountered many problems that were similar to electronic counterparts (chaining gates breaking things, certain gates being more unstable than others, errors adding up etc)

[@kaden-sd6vb]

"happy little accidents"--bob ross

[@austinestep8461]

@@StephenHall-zz2ym that’d be awesome, I don’t know if it’d be possible though since a Turing machine can loop indefinitely

[@szymonwojciechowski8513]

​@@kaden-sd6vbyes

[@DarkChaosMC]

I can finally not have to open another tab to figure out what 2+2 is

[@MTU.474h2]

How have you posted this a day ago it's been out for 13 min

[@Traumafromzoos]

He time traveled lol

[@kamixxae1567]

@@MTU.474h2 If he got the video link before the video was set to public he can comment early, probably a friend of Reid if I had to guess.

[@hiddenguy67]

amigus😊

[@DarkChaosMC]

@@kamixxae1567you’re wrong but I did get access early

[@bluesillybeard]

I was expecting nothing more than an adder. But we got an entire summation machine!

[@EggPiggies]

me too

[@corb5905]

Those are some of the strongest logic gates Ive ever seen

[@AsphaltMuesli]

Man of high culture

[@pig_master101]

8=(x) Solve for x

[@ElliotsLegoCreations]

​@@pig_master101🤨📸

[@boldituzvillam2318]

​@@pig_master101x=8

[@Antal-te6rj]

Indeed this computer was clearly built by an engineer

[@haniyasu8236]

Came expecting just an adder circuit, but I'm genuinely impressed with the registers and bus. Kinda crazy this was possible without it blowing up or the game lagging to unplayableness

[@egrimark2434]

Nice. Now make a bridge in Microsoft word.

[@ReidCaptain]

Sounds like a lot of work

[@Haxihoovis]

D8/`V```````V`\CI |U| I I |U| |U| I I |U|

[@troser4515]

@@ReidCaptain I never new 1+1 is 2

[@RandomBloonStuff]

​@@troser4515You never knew it, because it's actually 3.

[@quackncheese]

Or make Poly Bridge on a TI-84

[@jozimastar95]

He is gonna be a successful redstone master if he try

[@A_Panzer_VI]

"I MADE A CAR IN MINECRAFT"

[@orangeleaf36]

funny, because his first few videos right after the desmos ones are redstone-related

[@JadaTheSupreme]

Redstone digital logic is extremely fun anyway. I know he'd love it. I spend like hours and hours doing it and can't get enough

[@meemmeem9565]

“I just designed a functional bitcoin miner in Minecraft “

[@narrativeless404]

@@A_Panzer_VI That's pretty much useless Unless you make it with mods or command blocks

[@Bobbias]

It's interesting to see what your logic gate mechanisms look like. I don't know enough about mechanical linkages to say much on them in that context, but coming from an electrical engineering/programming background myself, I'd always wondered what sort of mechanisms would be involved in creating logic gates in polybridge.

[@SlicedHackedAndGrinded]

The great part about computer builds in sandbox games is that while they are limited by part count performance, simulated mechanical delay, or delay in the code, they can be built in basically any sandbox game with moving parts because logic gates themselves are simple.

[@TannerJ07]

I love how many random games are Turing complete

[@FernTheRobot]

Achievement Unlocked: Turing Complete! Seriously tho, the whole video is impressiveness one after another. from bits to gates to adders to RAMs to programs to outputs. Inaccuracies are the bane of any mechanical computer yet you conquered it all. I especially love the "wheels on wheels" output method. It reminds me of those fourier transform video demonstration and how elegant it is mathematically. It's basically a branch of a binary tree! Visualized! Needless to say, you mechanical knowledge is incomparable

[@guts60]

For those who don’t know: - AND gates require both inputs to be active for it to make an output. Two 1s go in, 1 goes out. - OR gates only need one of the two inputs to be active for it to make an output. One 1 goes in, 1 goes out. - XOR, or exclusive OR, gates require one specific input for the output. It has two inputs, but it can only accept one at a time or else it doesn’t work at all. - NOT gate, commonly known as an inverter or inverse gate, turns the input into the opposite when outputting. It turns 1s into 0s and 0s into 1s

[@SellusionStar]

I love the error correction compliant mechanism. Like a mechanical amplifier!

[@C0R3894]

Now make it run DOOM.

[@Iasagna_enjoyer]

hes gonna do quantam physics next in poly bridge 3 next, i know it

[@ReidCaptain]

No

[@Iasagna_enjoyer]

@@ReidCaptain darn.

[@chantandbehappy2023]

It's a quantum Computer, obviously!@@ReidCaptain

[@ScrapMikan]

then how about a moving bipedal walker with a machine gun, that would be cool@@ReidCaptain

[@ModerationLabs]

@@chantandbehappy2023We don’t even know how they work in real life

[@gem3763]

Bravo! I’m taking a computer internals class and it’s always fascinating to see the different ways people can simulate or build logic gates

[@alexsgarbagehut2517]

We are making minecraft inside of minecraft, a roblox player inside of a roblox game, now a computer inside of poly bridge (a physical game engine), A COMPUTER WITH A GAME INSIDE OF TERRARIA, AI THAT CAN CREATE AN AI, WHAT FURTHER? ALTERNATIVE REALITY?

[@lagos8010]

This is fantastic. You went way further with this than I thought was possible. I have shared this with everyone I know, amazing work.

[@jetison333]

Right? He made an adder and I thought wow that's awesome, and then he just... kept going lol

[@Rand0mGypsy]

Never would imagine that i would ever watch someone programming in a computer inside poly bridge, but fair enough, here i am fully enjoying it.

[@calvingarbacik272]

This should be useful for my exam in 13 minutes, thanks!

[@genericytprofile852]

I thought you were gonna use some sort of clockwork mechanism but this way is pretty cool too. Would love to see you make computers in different ways in different games too!

[@randomcitizen0]

can I ask you what is clockwork mechanism is?

[@petrovitch8420]

@@randomcitizen0 I think he means like gears and stuff.

[@usuario448]

0:57 for example this its a clock @@randomcitizen0

[@coolandonrs3680]

Your implementation of a almost SR latch was pretty interesting. Hybridizing 2 input types was cool, along with the fact that it was effectively its own logic gate. The only downside is you _technically_ lose Q’, but it’s not often used, and can be simulated with a not gate anyway. Cool gate!

[@mkv1.wood1]

The computer that cost 1,326,966 $ 💀

[@waltergwalterg-k6w]

1326966 bruh 69

[@penzolotl]

i honestly found myself understanding logic gates a lot more, thank you they've been so confusing haha

[@judy3827]

this is great inspiration for some sort of crazy looking steampunk computer

[@animalmango6499]

Hey reid.... this is a game about making bridges. this is a calculator. Your a legend.

[@soranuareane]

12:10 You've made a logic gate called a "buffer", which is logically the same thing as two inverters one after the other. This is used to ensure the signal is either 0 or 1 and not something in between.

[@minheritance]

Not gonna lie once i lose track of wtf was happening, everything else after became impossible to comprehend. Like god damn Algebra II in highschool. Thanks for the nostalgia, loved the vid

[@RicanSamurai]

Great work! I'm always impressed by more mechanical implementations in games without an obvious logic system

[@pyglik2296]

Amazing! I was expecting you to build an adder and call it a day, as many people do, but you actually built fully working, programmable computer!

[@ShadowKestrel]

I tried to make a slightly larger calculator a year and a bit ago in pb2 - managed to get a seriously compact adder, but could never quite get the D-latches to do their job. Most likely because I "locked" them in place by actively tensioning a cable instead of passively using a spring. great work!

[@Смартас]

Wow, you make a computer in game where need create bridge?!

[@ReidCaptain]

Poly Computer

[@verlidesouza]

Really cool! I really like studying and making these sort of computers, the good news is that there is a lot of content on KZbin about it ( usagi electric comes to mind immediately). Glad to add this video to the group!

[@aidanlin4176]

Hey! Love your content! You should try From the Depths, its a really fun sandbox building game that kind of fits in to the genre of games that you play. Its a block based building game where you build ships, tanks, planes, satellites, aircraft carriers, etc to fight ai craft and theres a campaign too. It would be really fun to watch you figure out the weird things you can do in the game

[@meddler2.0]

Do you have like. Napkins or notebooks that you record things on while you're working? It'd be super cool to see all the little thoughts and records that you keep track of while doing this stuff.

[@wSizzli]

I think that making a controllable plane might actually be possible if you find a way to control the weight distribution.

[@c4shguy224]

you could probably pre-program the controls but i don't think poly bridge allows for live input unfortunately

[@kisaragi-hiu]

It always feels magical to see logic gates being composed together to make a programmable computer. This is honestly a pretty good demonstration for how analog (non-electrical) computers are possible. It's great.

[@christopheriman4921]

It is a great demonstration for how digital computers work since they did in fact use digital logic here, analog computers are a bit different than just saying that it isn't electronic since we have analog electrical computers too.

[@jimmybean420]

what christopher said. reid made a mechanical digital computer, here.

[@andueskitzoidneversolo2823]

Wow that's really good. .. I kinda fell in love with computer engineering and went a little crazy and built a working computer in no man's sky. Using inverters and autoswitches as transistors. Would love to see what you would devlop with such a system

[@jasonmonks8423]

Nice one, now make a fully functioning portal gun in beseige Good luck lol

[@ReidCaptain]

Terrible

[@jasonmonks8423]

Understandable, have a nice day

[@C0R3894]

Yeah that would be impossible

[@kman6004]

I guess this means that polybridge is Turing Complete. I can't wait until we get polybridge made inside of polybridge!

[@cadenrowse4993]

i think it would be relatively simple to make a 7 segment display. you could just use a bunch of and gates to convert the binary into decimal, and then run the output to a display

[@Pystro]

There are actually ways to feed the bits directly into gates, but you need 3-5 gates (as far as I remember) for each of the 7 segments. If I remember that right, it would be 30-ish gates total. More gates than this whole computer currently has, even if you count each of the mechanical linkages in the output slider as an "analog addition" gate.

[@SCOP_]

Ok, but can it run doom?

[@Gunnar-i6d]

This is too underated

[@imisstherage1]

Theoretically you can run doom in poly bridge yes but you would need a complicated display

[@SyedF7890]

​@@Gunnar-i6dits underrated,for this channel :/

[@CIWS-Goalkeeper]

@@imisstherage1and a 1 million by 1 million size plot for the mechanics

[@PrestonLK]

My brother and I have *joked* with each other in the past about you doing this, but we didn't expect it to actually happen! Incredibly impressive creation!

[@inconsistentlysleepy]

Ah yes, a $1.3M computer that can add up to 15

[@ВіталікБритан-х7ч]

It's much more complicated than making computer in terraria, or minecraft... You're genius!

[@galladegamerletsplays]

that's exactly what I wanted to try making once I got poly bridge and I wasn't sure if it was possible but HERE WE ARE!

[@samuelsanders115]

What I expected: a full adder What I got: 😲

[@nomekop777]

you should try this in besieged. maybe working in 3d will be a bit easier, and you dont have to reinvent all the logic gates as most of the components available in poly bridge (springs, pistons, rope, etc) are already available

[@Free-4554]

This will run doom for sure

[@goblinkoma]

next up: building complete von Neumann architecture in PB3

[@cjnelson8627]

Me trying to read the output: confused screaming

[@wensstt2157]

Thank you for such great content, this is awesome!

[@FamousGunz]

Bro scares me how smart he is it’s baffling how genius he calculates his next move

[@BioFox08]

*“Today I programmed a computer playing poly bridge in poly bridge”*

[@GlorifiedToaster1]

In the word of RCE, very efficient design

[@btarg1]

7:55 yep, nothing to see here folks just a logic gate

[@RenderingUser]

Bro actually built an analogue/mechanical computer

[@mr.bloudil9744]

super video

[@ScenicFlyer4]

With just those gates you could program poly bridge given enough time (and frames). Prbably couldn't display it, but the code would be simulating it.

[@Roaxial]

LES GOOOOOOOOO BEST VIDEO ON THE CHANNEL SINCE UTTT !!!!!!!!!!!!!!!!!!!!!!

[@jordanwright6854]

My digital systems professor would be impressed. Well done

[@ramaicatseye]

He took it seriously and actually did it!

[@beaverbuoy3011]

Just realised the similarity that nile red holds with your narration style. epic!

[@melonemelone8746]

Time to make Poly Bridge in Poly Bridge (New Redstone)

[@Patashu]

I love the way that it's all jerky and physical, it brings me joy

[@otter502]

7:40 you can definitely make xor w/ just nand, or, and/or and gates. Nand and nor gates allow for all circuits

[@Regaltf]

next time on "ReidCaptain": Hacking into pentagon using polybridge

[@Jelly_beens]

"Making the entire biology of all organisms known in the history of existence in poly bridge 2" is this madlads regular Saturday. Not to mention " Making a working solar system in besiege"

[@robinweiland7533]

I scrolled past a video yesterday along the lines of "How bit flips actually physically happen". Now I know that somebody just miscalculated the stiffness of the many springs in my computer

[@derlol4287]

You are too smart for Polybridge😂.

[@ReidCaptain]

This is still fairly simple, if I wasn't using the hydraulic controller this would be a lot harder

[@phibik]

​@@ReidCaptainyou really called that simple 💀

[@tatecrossette2855]

Make a computer that runs poly bridge 3 in poly bridge 3. I know it wouldn't be possible but it'd be dang funny if it t'were

[@ReidCaptain]

I could maybe make a purpose built thing to do a very basic version of that

[@mrkosmos9421]

This is awesome. And not only did you make a digital computer - it works in analog as well!

[@mrkosmos9421]

Except for the memory, that's digital

[@lashi_0007]

Honestly this video makes me want to know more about your education. Like the typical youtuber lore is “i dropped out of college for [insert major] to focus on youtube,” but this is a lot more complex than jacksepticeye’s marine biology fun facts.

[@crocka1239]

You are insane great vid, I built some logic gates and made an adder years back but it was only 2 full adders together xD

[@PeriOfTheGee]

Not sure if it was suggested before, but I think it might be interesting to see you do a playthrough of Turing Complete? It's a game where you build an 8-bit computer from scratch with logic gates and write programs on it. Not sure if there is a sandbox mode in it though.

[@goshdarntootin]

ive never heard anyone sound so constipated throughout an entire video in my life

[@Pallidum]

This gives a new meaning to bit flip errors.

[@nonix2617]

Congrats, you made a computer in poly bridge. Now here's the question. Can it run Doom?

[@idrankcandlewax]

thats a nice logic gate you have there 7:35

[@MBrubix]

Amazing. Next vid: I made poly bridge 4 in Poly bridge 3.

[@_fudgepop01]

As a developer, I absolutely hate this… by which I mean I love it - fantastic explanation!!

[@Numbr1RatedSalesman1997]

Reid is gonna be so confused when he sees people making bridges in Poly Bridge, when it's clearly for computer making

[@The_Real_Tib]

They said you couldn't do it! They said you shouldn't do it! They begged us NOT to do it! And you did it anyway!

[@Himinoimnoi3298]

I don’t know what any of the gates do, and this made no sense, I just like watching Reid Captain make things that weren’t meant to be created in Poly Bridge 3.

[@charliezard64]

Many of your logic gates look like very strong shapes! 😏

[@UNPSC-0]

Making a working nuclear reactor in poly bridge 3 is getting ever so closer

[@TheDistur]

Mechanical computers are neat

[@Cezzer0]

"Simple Redstone, really."

[@avgeekgupta]

My first reaction: "You did what?"

[@watermf4705]

Imagine being one of those cars in wanting to cross the River and then seeing a huge adder in the sky

[@samuelmackey7081]

A part of me wonders what you do when not doing the most insane things on KZbin. Probably solving all of the world’s engineering problems

[@FrogToTheFrog]

I’m glad ya still make videos!

[@DennouNeko]

Give developer 2 sticks, he'll manage to make a stack and overflow it. Nice to see a mechanical computer :)

[@074rajpurohitvijesh3]

now he gonna make the poly bridge 4 in poly bridge 3.

[@ferrisbowser3352]

One step closer to playing doom in poly bridge

[@Jabozanator]

I understood almost nothing in this video but I loved every second.

[@Cranberrie123]

Your speech mannerisms remind me a lot of nilered. Cool video.

[@HighOnZa]

Man, that OR gate has a unfortunate design ☠️☠️☠️

[@antenna8836]

My dad actually introduced a concept to me once, and it's stuck in my head ever since. All types of logic gates can be created with only the use of NAND gates. Basic examples below NOT = NAND(A~A) OR = NAND(NAND(A~A) ~ NAND(B~B)) AND = NAND(NAND(A~B) ~ NAND(A~B)) XOR = NAND(NAND(NAND(A~A) ~ NAND(B~B)) ~ NAND(A~B) ~ NAND(NAND(A~A) ~ NAND(B~B)) ~ NAND(A~B))