World's worst video card? The exciting conclusion

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For part 1, see this video: • The world's worst vide...
Let's build a circuit that displays an image on a VGA monitor! In part 2, I talk about how VGA uses analog RGB signals to send different color pixels to the monitor. I use an EEPROM to store an image and build a simple digital-to-analog converter to generate the color signals to successfully display an image.
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Опубликовано:

26 сен 2024

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Комментарии : 7 тыс.

@BenEater 3 года назад

Want more information or want to try building this yourself? Check out eater.net/vga for schematics, kits, and more!

@mynameiszoro 3 года назад

Nice!

@andyanderson3301 3 года назад

It's more like a cga. No DCA, and few bits on each line. I guess I haven't done those for 30 years... Hahahaha 🤣 (I was and graphics engineer).

@achtsekundenfurz7876 3 года назад

I'd say something like the 16-color mode on the CGA, which was actually text mode, but drew no more than the top 1/4 of each character. The characters were either 220 or 221 IIRC (solid block left half. solid block right half), so that you could have 160 "pixels" per line: 80 characters, half foreground and half background color. Background couldn't be anything >7, which rendered some rather bright combinations impossible (like 15/9: white/sky-blue). The 100 lines rather than 200 were a limitation of the video RAM, which would have been too small for 200. More recently, there were hacks which sacrificed even more resolution on the CGA and used the characters 216 to 218 (25% foreground color, 50% foreground color, 75% foreground color) to dither in a 16-color mode. The results were "plasma" demo effects in text mode and a video player called "8088 Corruption" which ran on a 1981 IBM PC. And a demo called "8088 MPH" which ran on the same PC. All of these are on YT, and there's another video called "CGA doesn't suck THAT much!" or similar. Some of those examples are quite impressive.

@manuel.dignani 3 года назад

Can you Make this video card controlled by an Arduino? And you can take an image directly from your computer, or a text...

@AidenJooMV 3 года назад

Nice! Does it have instructions? Also You are no longer answering me 😭

@ubertgold 5 лет назад

"what do you want from me, I'm trying to build a video card on breadboards" - best thing I've heard all day

@cda32 5 лет назад

I'd like your comment but it has exactly 256 likes right now and that's also too cool

@cda32 5 лет назад

ah nevermind someone messed it up

@yashasbharadwajhs 5 лет назад

The other one funny line was “as much fun as colorful stripes are, I want to display more complex image”

@maulaahmad2542 5 лет назад

I read this as he said it

@reznovvazileski3193 5 лет назад

@@cda32 there's always still 2048 from this point :P

@AlekseySmolenchuk 5 лет назад

Also showing off your photoshop, vim, python, and bash skills. This is truly "full stack" engineering.

@Mayank-mf7xr 5 лет назад

ben is a god of electronics for me .

@allat0nce 5 лет назад

@@Mayank-mf7xr ben is based af

@maxhouseman3129 5 лет назад

I like him, but as an engineer it is for me totally normal to know or learn several things to succeed in a project.

@hectornonayurbusiness2631 4 года назад

He flexing on all of us

@aorusaki 4 года назад

Hahahaha

@Braeden123698745 5 лет назад

Man I want Ben's super power of being able to pull properly sized wires right out of thin air.

@leowise2008 5 лет назад

Yes! it was magic! I remember cursing all the time when I was trying to wire a flip-flop in class! I was thinking " there has to be a f****ing better way to do this!"!!!

@mysterythecat971 5 лет назад

@@leowise2008 build it twice. Ben does. Then again he is a technomage.

@DouglasZwick 5 лет назад

Like Professor Farnsworth, he probably has a drawer where he keeps assorted lengths of wire.

@Archgeek0 5 лет назад

I'm more impressed that he's got them pre-routed for his board.

@tray3989 5 лет назад

You have 256 likes. Please don't ruin it :)

@skynet1024 3 года назад

this guy teaching electronics, graphics design, programming and everything in a single video... man that's my entire engineering degree.

@RXC13 7 месяцев назад

As a teacher with a CS and Math background, I can tell you that while this is really impressive, it isn't teaching.

@HeavyReign12 6 месяцев назад

@@RXC13Isn't he teaching if I'm learning from him?

@nidavis 6 месяцев назад

@@RXC13 yes it's much more useful than any formal teaching I got as a CS major!

@damienostler4531 5 месяцев назад

@@nidavis based

@xjustinjx 4 месяца назад

Teachers don't teach kids, they indoctrinate them, it's 2024. This was great, watching that simple effective python script put my python class in perspective. My teacher didn't once teach anything the entire semester, I got a 100% and two certifications, but didn't understand anything, watching that little bit just blew my mind as to why python is necessary and especially when a try except is used.

@notkanye8770 5 лет назад

NVIDIA hates him! Find out how he made his own video card with one weird trick!

@aesthet1k_ 5 лет назад

10/10

@zo1dberg 5 лет назад

Crypto mining farms love him - he's saved them millions!

@maxbouch1128 5 лет назад

his kids hates him cause thats all they gonna get

@prince_keke 5 лет назад

Only 1% gamers can beat lvl 6

@DylanMcMullen 5 лет назад

Lol nah AMD has more to worry about if this card goes to market

@eaaeeeea 4 года назад

All my life, this is exatly the level I've wanted someone to explain and demonstrate me how a picture on the screen is created. Thank you very much!

@rich1051414 4 года назад

It's simultaneously less magical yet also somehow more impressive at the same time.

@nicktimmerman2062 4 года назад

Same for me. I just could not comprehend a human could keep track of whats happening. Ofcourse this is simplified but the perfect amount so I can accept that it is indeed possible

@damiengates7581 4 года назад

It's deeper than this

@damiengates7581 4 года назад

@@nicktimmerman2062 mathematical formulas keep track

@ionrael 4 года назад

Redstone RU-vidrs "it's actually quite simple"

@Sergio0694 5 лет назад

"It might not be the most incredible resolution, but what do you want from me, I'm trying to build a video card from breadboards". Ahahahah bless you Ben, this is amazing work!

@rainerzufall5627 5 лет назад

Found at 4:53. Made me laugh so hard as well :D

@AiOinc1 5 лет назад

Blondihacks has a good series on this too, with very similar comments

@GORF_EMPIRE 5 лет назад

Give him a New Jersey accent and that statement would be perfect!

@mikeb1596 5 лет назад

You beat me to it. Best quote ever

@Anthony-ym6iz 5 лет назад

Love that comment! Ben is simply awesome! Brilliant!!!!!!!

@quickreelbrand Год назад

No way he changed between 4 ROMs in order to display his patreons and the bird as well. Just amazing.

@jincyquones 5 лет назад

I love how you can just hot swap out EEPROM chips to change the image. It makes it feel like some vintage slideshow tech from an old sci-fi movie.

@jaaguar13 5 лет назад

Now, lets give this idea to the professors at university :D No powerpoints or anything. Just breadboards.

@nagualdesign 5 лет назад

PowerPoint 0.1

@Leuel48Fan 5 лет назад

Hot swap a dozen or so EEPROMs having a second person reprogram them to a different image in a "circular assembly line" fashion. Call it a 0.05 FPS video card system and ship it! *Requires 2 operators

@cinderwolf32 5 лет назад

@@Leuel48Fan brilliant

@GigsVT 5 лет назад

@@Leuel48Fan In the 747 they used as mobile nuclear command they had a button on the podium that would flash a light for someone in the back room to change the slide on the slide projector. They can order world destruction from the plane but it took two people to make a slideshow.

@AL_O0 5 лет назад

Please select your graphics adapter: 1- CGA 2- EGA 3- Tandy 4- VGA 5- Ben Eater’s Breadboard graphics card

@mfree80286 5 лет назад

BEBGA, Ben Eater's Breadboard Graphics Adapter.

@dangerx69 5 лет назад

I remember some dos games had options to choose those

@mysterythecat971 5 лет назад

6-Hercules

@GexPlayerMD 5 лет назад

CGA EGA SEGA PS-ONE PS2 PS3 PS4

@masochisticcooking7078 5 лет назад

His graphics card is better then the one in my computer

@tehedx 5 лет назад

Swapping eeproms will be a good replacement for powerpoint presentations. Impressive work!!

@marwinthedja5450 5 лет назад

That's a great idea! One slide per EEPROM - will definitely keep the number of slides down ;)

@adamw.8579 5 лет назад

@@marwinthedja5450 Stack 50 EPROMs one by one and switch CE pin only.

@forestmanify 5 лет назад

It's the future! :p

@GabrielDalposso 5 лет назад

There should be a 90s or something movie where the character does this

@tuesss 5 лет назад

@@marwinthedja5450 Actually, two slides per EEPROM, because one bit was left unused - could easily hook up a switch there. Technically over 5 slides could fit because there were also some unused columns and only 6 bits of every byte were used, but that'd require a much more complex circuit, of course.

@rikvdmark 2 года назад

I love projects like this. They don’t really serve any practical purpose but they’re invaluable for learning concepts. And just to understand what goes into every day stuff we take for granted. In a nutshell, awesome videos Ben!

@blackdeath4eternity Год назад

what you mean you wouldn't use this as a video card for a raspberry pie? :P

@mihajlojovic8631 Год назад

I thought gpus are expensive, but from now I am not sure anymore

@Dude8718 9 месяцев назад

@@blackdeath4eternityman the raspberry pi already has a better video card than this tho. I've played Minecraft on my raspberry pi

@KDYinYouTube 7 месяцев назад

@@mihajlojovic8631learn more about gpu before comment

@adora_was_taken Месяц назад

@@Dude8718 this video "card" doesn't even do graphics acceleration, it literally just converts pixels to video output like in the early 90s

@sto2779 4 года назад

This dude deadass built a video card from IC chips and directly plugged it into a flat screen monitor. He did everything from scratch. That's real talent.

@Atovange 4 года назад

No talent bro, I bet he studied a lot to be in his position :)

@grugiv 4 года назад

Next: "Building my own display"

@monarchseye9146 4 года назад

Perfect for running Temple OS

@FoxhoundULM 4 года назад

@@Atovange you could study for lifetimes and you still wouldn't be able to grasp the skills needed to achieve that on your own. "no talent bro", that's exactly what a talentless being would say.

@Atovange 4 года назад

@@FoxhoundULM How could talent teach you how a quartz clock work? It's all hard work and study

@casinatorzcraft 4 года назад

Screw powerpoint next time I do a presentation I'm gonna hotswap EEPROMs for my homemade vga video card

@simohamedrayeneslimani3418 4 года назад

Was watching this to fall asleep, ended up getting a coffee.

@kasberkhof7958 3 года назад

Lol same. Was watching with one eye open and when i closed my open eye I got annoyed and opened again. Then just sat up right

@ogt92fromthe1step9 3 года назад

Same here 🤣

@michaeldonoghue9015 3 года назад

Ben Eater: digital electronics ASMR channel

@jamesperez-sanchez7573 3 года назад

Lmao

@lotychannel6126 3 года назад

Almost same. I watched this afternight amd fell asleep

@jhiggz9258 3 года назад

Beautiful stuff. I've always worried that the HOW gets invisibly embedded in megachips, potentially lost forever. You keep it alive and visible to the learner. Thanks for that.

@kevinedmunds7745 2 года назад

chill that’s a lil scary to think about

@permissionBRICK 4 года назад

That was the most epic way I have ever seen someone honor their patreons

@danielmalo1753 4 года назад

Honor? More like show off

@TheBandy01 4 года назад

@@danielmalo1753 Looks like someone's jealous.

@questwalkerko 4 года назад

what is that pfp?

@Thewolfobsessedgamer 4 года назад

@@questwalkerko it's Stein from the anime Soul Eater

@MH_Binky 4 года назад

Shiroe from Log Horizon.

@Mondkalb 5 лет назад

+1 for the audio-environment that your keyboard adds to the python explanation segment.

@philrod1 5 лет назад

Definitely not butterfly keys

@uraniumglow2678 5 лет назад

Funny to see you here! Now get back to working on GM. :P

@blodstainer 5 лет назад

That mech board glory

@tonikotinurmi9012 5 лет назад

@@blodstainer Yup, lot faster than any other kind to type on.

@blodstainer 5 лет назад

@@tonikotinurmi9012 it's more to do with the feeling and typing experience than speed. Rubber domes just feel bad, and while I like scizor switched, I definitely prefer colicky or tactile mechs. Or hell, buckling spring Model M styles

@lukemcgarr6127 5 лет назад

That EEPROM could store 2 more frames. You could make this display a gif.

@aelolul 5 лет назад

@Ben Eater gif gif gif gif gif

@l3p3 5 лет назад

Gif? You mean an "animation", don't you?

@HMan2828 5 лет назад

@@l3p3 He means a Graphics Interchange Format image.

@tomkandy 5 лет назад

1 more frame would be relatively easy - just write the second frame starting at 0x4000, and have a switch to take A14 high to swap to the second frame. 2 more frames would be a PITA.

@sherwoac 5 лет назад

Moving picture please! I'm sure with a bit more effort it could be compressed down to get a few more frames too.

@dylangergutierrez Год назад

As an analog IC designer, this is so fascinating to watch. You're deeply knowledgeable in everything you do, and you're hacking in the truest sense of the word. At the same time, you do things where I'm like "Wait! That's illegal!" And any applications engineer would have a stroke over. And it just... Works beautifully. And it's an excellent teaching tool.

@pptheastrologer6870 7 месяцев назад

As a complete noob, and someone wanting to get into this, I'm kinda curious what you find illegal here

@RedHair651 6 месяцев назад

I also want to know @@pptheastrologer6870

@fomxgorl 9 дней назад

@@pptheastrologer6870same

@EtienneSnyman 5 лет назад

Hey Ben, you know we all want to see you connect this video card to your 8-bit breadboard CPU, right? Like, all of us want it!

@demid6532 5 лет назад

Probably his 8-bit computer is too weak for this gpu, 8-bit bus is not enough to allocate 7500 adresses of video memory. It is only possible to make 4x4 pixel display for breadboard cpu.

@absalomdraconis 5 лет назад

With a bit of address mapping (take an address, use it to control a register, then use that register to provide the upper bits of an address when you try to access certain other addresses, called "banks"), and you can fairly easily overcome any memory restrictions. With multiple banks (two is good for moving data, three is good when also executing from "expanded" memory) you get a _very_ powerful system that's almost as fast as an un-banked system.

@keco185 5 лет назад

Демид Ефремов you could easily add stuff in between which takes in an ascii character and then writes that character to the memory at the next available spot on the screen (or newline)

@alalala132whyisthishandletaken 5 лет назад

3:03 image flash.

@23skymaster 5 лет назад

And then we run Crysis on it!

@modestorosado1338 4 года назад

As rudimentary as this "video card" is, you're actually showing how a video card works. I don't know a lot about these things, so to people like me, the way electronic devices work might as well be magic, but this video really shows what the device actually does when it receives an input, and how it interprets electrical signals in order to display colours, creating an intelligible image in the process.

@kxmode 4 года назад

Right? So just imagine when a video card is doing complex things like ray tracing. A video card like an NVIDIA RTX 2080 is a mini-computer--a video computer. 🙂

@MsIndycar 4 года назад

Naa ppl these days only care bout ma fps

@jarls5890 4 года назад

Not only that - I don't know if you catched it - but those 6 resistors that convert the digital image to volts to send to the screen - is actually a small DAC (Digital to Analog Converter). In fact using the same principle you can make a simple audio DAC ...or as we used to call it....a sound card.

@shr6482 3 года назад

@@jarls5890 I used to wonder why my parents interchangeably use "video card" and "sound card". Little did i know that they are very similar.

@flexprods 3 года назад

@@jarls5890 I want him to build a sound card too now lol

@aelliixx 5 лет назад

Incredible work! I'm very excited to see what future projects you come up with!

@TheWeberiz 5 лет назад

nematei ant gala buvo ekrane užrašyta "debilu krastas" nu ble ble lietuviai a ne gieda :D

@aidensamuels3340 5 лет назад

How it was posted today you commented yesterday

@Axristosgr 5 лет назад

@@aidensamuels3340 Patreons can see the video a few days earlier.

@dm3on 5 лет назад

Next project; mining bitcoins on breadboard video card.

@aelliixx 5 лет назад

@@TheWeberiz Sakes :DDD

@out-of-will 3 года назад

"I'm not going to hook this to a computer, at least not yet..." *flashes image of breadboard computer*

@PotatoMcWhiskey 5 лет назад

These videos were incredible. I feel like I have a better understanding of how Computers display graphics now.

@DFX2KX 5 лет назад

and while the formatting is different (digital instead of analoug) this is still how video signals are sent over HDMI.

@manictiger 5 лет назад

I have a Display Port cable that has two damaged wires (I think). So, it's interesting... If I bend the cable at the wrong angle, the wires disconnect and the monitor has little cyan lines going through it, meaning that at least 1 red wire and 1 green wire is having issues.

@doublepmcl6391 5 лет назад

Me too ;-)

@adomasjackevicius6208 5 лет назад

Same here! Great videos.

@fatemonkey 5 лет назад

"I'm not going to hook this to a computer, *at least not yet*" 👀

@atrumluminarium 5 лет назад

Play it with 0.25x speed. He's teasing something in one of the frames

@WokWongz 5 лет назад

3:03

@Goldernturkey 5 лет назад

Oh god I'm excited for that

@thegingerpowerranger 5 лет назад

Holy shit that is amazing. I thought you were taking the piss.

@diamondfailer11 5 лет назад

You can use the "." and "," keys to navigate from frame to frame

@JackTheSpades 5 лет назад

"What do you want from me, I'm trying to build a video card on breadboards" Dunno why but that just cracks me up. xD

@artemyevtushenko8722 5 лет назад

JackTheSpades it’s just such a self aware comment. It really reminds you how silly this whole awesome video is.

@timoofi 5 лет назад

I enjoyed the line "I dont know if this looks like a bird to you" during the hexdump

@willgilliam9053 5 лет назад

That needs to go on a shirt...

@mt_xing 3 года назад

You can tell a hardware person's writing code when there's a try-catch just to check for a valid index.

@davidy22 3 года назад

Python devs be like

@HentaiNat 3 года назад

What should you do in that case?

@davidy22 3 года назад

@@HentaiNat Check for the valid index instead of intentionally doing an invalid index to catch the exception

@HentaiNat 3 года назад

@@davidy22 How would that look like?

@mt_xing 3 года назад

@@HentaiNat Just use an if/else instead of a try/catch. Not only is your intent clearer to someone reading your code, it'll also run much faster.

@moshly64 5 лет назад

To fix the thin lines, put a 74LS374 on the output of the EPROM and clock it from an inverted dot clock (10Mhz) & adjust the H-sync to be one step later.

@diversionmary 5 лет назад

RU-vid is truly the greatest human invention. Not just that the content exists, but instantaneous gem feedback such as this comment. What a time to be alive!

@Balomis 5 лет назад

I love how there's people like me that kinda get what's going on here, and then there's people like you who *get* what's going on here

@fiddley 5 лет назад

Yep, I was just thinking the same. 🙃

@CallumAi 5 лет назад

Unfortunately the worst case tACC for the EEPROM is 150ns, and the period of the 10MHz clock is 100ns, so using a D-type flip-flop (like the 74LS375) and correcting timing by one pixel would still have potential for a glitch. However, as he’s dividing the 10MHz by two by dropping the LSB of the horizontal counter, it would be possible to divide the clock to the D-type by two to produce a sampling period of 200ns and never violate the EEPROM access timing. H-sync would then also need to be delayed by two cycles rather than one.

@cbboegh 5 лет назад

I was immediately thinking the same thing - "you need a buffer on that slow ass prom". Ben's comment about sdram being faster and that this would solve the issue is misleading too. Let's say he used some low latency ddr4 with 15ns latency. That might work, but only because the monitor is too slow and likely samples towards the back end of each 25ns pixel. An old crt would shift the image by about a half pixel and if it was a good monitor, it would display the invalid data as vertical lines of pixel flicker. A 4k pixel is less than 2ns - so sdram is always buffered.

@Sauraen 5 лет назад

The Patreon thanks via EEPROM images was a nice touch!

@KatriceMetaluna 5 лет назад

We need more videos where the end credits roll by switching out EEPROMs.

@jjbailey01 4 года назад

Brought to you by viewers like you.

@thomasvlaskampiii6850 4 года назад

Could you imagine having credits for a movie roll like that? That'd be great

@thomasvlaskampiii6850 4 года назад

@@jjbailey01 I spy a PBS reference

@Preinstallable 4 года назад

@@jjbailey01 pbs kids

@plazmotech5969 5 лет назад

3:03 HE'S GOING TO HOOK UP THE GRAPHICS CARD TO HIS BREADBOARD COMPUTER

@MajjkyTV 5 лет назад

yeah, that would be so awesome!!! :D :D

@fish-qm9dg 5 лет назад

hype

@jamhough22 5 лет назад

was wondering if anyone else seen that hhahaah

@Yuri-bt4wl 5 лет назад

Just saw that and came down here to look for the coment about it. Found ya!

@markkeilys 5 лет назад

I mean I figured that was the case when pt1 came out.. this is was just confermation.

@clysmo_ Год назад

Parts List: 10 Mhz Crystal Oscillator (Full Can) 28C256 EEPROM 74LS161 (x6) 74LS04 (x4) 74LS30 (x8) 74LS00 (x3) 1.5k Ohm Resistor (x3) 680 Ohm Resistor (x3) 15 Pin VGA Female Breakout Board Hookup / Jumper Wire 4 Breadboards

@deadytm Год назад

thnkx a lot !

@antonydecosta6262 Год назад

Can of beer x3

@a.c.2659 Год назад

@@antonydecosta6262more like gram of meth 10x if you want to build this irl

@MattiaDelFranco 2 месяца назад

- Electronic Engineering Degree

@N3tech 5 лет назад

The level of organization on your bread board is incredible. I thought I was organized with mine, but yours make mine look like a bird's nest...

@zwz.zdenek 5 лет назад

Well, he's got a bird in there and that technically makes it a bird's nest too.

@IAmKillEveryone 5 лет назад

It always pays to watch how others organize their circuits.

@johndorian4078 5 лет назад

And his fancy cut's in his video editing.. cause i'd imagine there's a lot of cut out of him measuring them and bending them and removing them...............

@wojciechmuras553 5 лет назад

"I'm not going to hook this up to a computer... yet." *Don't do that. Don't give me hope.*

@azzajohnson2123 5 лет назад

Wojtas! Hook it up to the 8 bit breadboard computer!

@OpenKeith 5 лет назад

hey at least it'd be better than my laptop's integrated graphics card

@TheYaMeZ 5 лет назад

As soon as he says "yet" there is a single frame that contains a picture of his 8 bit computer. So it seems even more likely he will attempt it!

@iProgramInCpp 5 лет назад

@@TheYaMeZ yep

@bamberghh1691 5 лет назад

3:03

@baameows 5 лет назад

3:03 *you can’t escape me, single frame of a dummy thicc breadboard*

@عليمحمدجبار-ت1ي 5 лет назад

actually, it is two frames at 30 fps.

@UltimatePwnageNL 5 лет назад

42!

@kitsunekaze93 5 лет назад

@@عليمحمدجبار-ت1ي four frames at 60 fps.

@fucku2b 5 лет назад

thank you :)

@LocalGuideClyde 5 лет назад

LMAO! dummy thicc breadboard ... I'm ded

@catdog69kool Год назад

Oh man, that 4 bit output voltage divider really tickled me. That's so true genius in it's simplicity.

@ZzSlumberzZ Год назад

i agree. almost seems like a miracle how the numbers work themselves out.

@mineteam0 Год назад

its not about the numbers adding up. its just basic electric physics where 1+1 = 2 in terms of current

@TheGoodChap 10 месяцев назад

Yeah I was immediately stumped as to how he was going to vary the voltages and that was clever

@DaveGagliardi 4 года назад

When Ben used Red, Green, And Blue wires to represent the color outputs on the breadboard, i was delighted by the attention to detail that went into this. Thanks for producing such an interesting and educational video.

@petezzzz 4 года назад

Me too. But it wouldn't have been Ben otherwise.

@raffaelenicolapiazzolla3927 5 лет назад

"I don't know if this looks like a bird to you" that made me subscribe lol

@EYEBALLS-kq2en 5 лет назад

This is the greatest line in internet history!

@TheNamsorg 5 лет назад

Neo surely saw the bird, that’s some Next level matrix shit. fascinating insight of how a picture is generated... and other programming voodoo ;)

@aslongasbassstrings 5 лет назад

You should consider doing a bonus part 3 where you load 3 unique images into the remaining memory and slow the clock enough to make it animate like a GIF!

@xusdk 5 лет назад

He could probably just use the vertical blank for advancing the image. That'll be a 60 fps animation. _Insert joke about 30 fps consoles here._

@solepanic6583 5 лет назад

@SyphistPrime 5 лет назад

Honestly that would be a cool idea

@pneumonoultramicroscopicsi4065 4 года назад

@Richard Clutterbuck not with all games, some of them run at 30 or even 30 unstable

@tawongadonnellmsiska173 4 года назад

Am thinking hoock it up to a raspberry PI and we can have some 100x75 pixel fun

@bimbirobotics1050 2 года назад

the fact that the image it produced is actually not bad and you can even tell what the image is of (to an extent) is impressive good job!

@HallOfMemeYT Год назад

He already mentioned it's distorted because low Frequency 10MHZ

@bimbirobotics1050 Год назад

@@HallOfMemeYT i know that, its impressive how good it is.

@dreamonstage 4 года назад

Just shows how beautiful the engineering process is, from an idea, to hardware, to software, to debugging, to finished product, with testing at every step.

@hello123s 3 года назад

Absolutely beautiful when we are a spectator but extremely excruciating when we are the ones doing that

@derekbarbosa 3 года назад

@@hello123s exactly. In my hardware classes, testing even a simple module with testbenches was hard and annoying. This one-man show is an absolute marvel. Bravo.

@camillecirrus3977 5 лет назад

Ben: I made the world's worst video card! Intel HD Graphics: *Am i a joke to you?*

@koalakun3195 5 лет назад

Lirei Taichen ATI: *Am I a joke to you?*

@BIG_CLARKY 5 лет назад

Ha! that comment was also on the first video!

@GRBtutorials 5 лет назад

Most integrated graphics in general: *Am i a joke to you?*

@Null_Experis 5 лет назад

S3 ViRGE: Am I a joke to you?

@johnfrancisdoe1563 5 лет назад

Gedo De Luchs ATI=AMD Graphics and before that the most common integrated graphics in server boards that only needed a screen for setting the thing up. Anyway, the original IBM PC manual included schematics for everything, even the CGA card built with TTL chips, a RAM chip and an old 6845 chip that did the job of the two bottom breadboards. Max res 640x200 with the 4-bit DAC in the monitor instead of the card. Hercules just added more TTL chips to get 720x350 on the MDA monitor with it's 2 bit DAC.

@gesprengt6561 5 лет назад

I noticed one of the sync wires isn't hooked up correctly I believe. On the second breadboard from the bottom, the white sync wire is hooked up to pin 13, which is an input of the flipflop. Whereas the yellow sync wire correctly is in pin 12. Could that cause the problem with the black bars or am I wrong somewhere?

@BenEater 5 лет назад

You're right, it looks like that was hooked up wrong! That would have made the horizontal sync pulse much narrower than it should be, which apparently the monitor was able to deal with just fine. Presumably I didn't notice it since it worked. But hooking it up to the correct pin which provides the longer correct pulse still gives you the black bars so I think my diagnosis of the slow ROM read time is still likely to be what's going on. Nice catch though.

@paladin1147 5 лет назад

Incredible catch if I might add

@Kitulous 5 лет назад

@@paladin1147 I double this. I look at those holes in the breadboards and I still can't get where to put wires. I believe that all holes on the same column are connected between each other. Amirite?

@HazeAnderson 5 лет назад

Where's this bread you guys keep talking about? I wanna sandwich now. 😂

@h-milch371 5 лет назад

Alter Falter hast du ein Auge fürs Detail 😯

@lorenpearson1230 2 года назад

Not sure why this came up as a recommendation, but we built these 30 years ago in a tech course, as part of our understanding of the display schematics and these signals. We also built the power supplies and operational amplifiers, etc. The fun part was denying the colors and interpreting the interference. Nice to see they are all discrete chips today.

@andyparadis342 5 лет назад

I'm an electronics newbie and I'm impressed that your explanations are detailed enough to follow along without being verbose. I'll keep watching.

@BertGrink 4 года назад

You've come to a great place to learn, then. I would also recommend a couple of other RU-vid channels: *Great Scott!* and *Julian Ilett*

@marcostezo8051 4 года назад

in the future "How to make a 2080ti from scratch"

@vipervidsgamingplus5723 4 года назад

Marcos Tezó not likely

@NeoReibert 4 года назад

Viper vids gaming plus well maybe in 100 years? 🤔

@AQHackAQ 4 года назад

@@NeoReibert I estimate 60-70 years. Fully 3D printed GPU.

@pictzone 4 года назад

Never ever

@ZingarolhoGamer 4 года назад

Viper vids gaming plus it's a joke, dickhead

@bluspectre2042 5 лет назад

Cool! Now we need to make a Ray Tracing module to this breadboard card!

@mestevesx 5 лет назад

I guess if you dont need it in real time it is doable :D cue factorio raytracing engine built with in-game elements

@onuktav 5 лет назад

@@mestevesx I believe that factorio experiment you mentioned did ray casting, not ray tracing. But it surely is an incredible achievement on its own.

@mestevesx 5 лет назад

@@onuktav Yeah, my bad, I thought the had the same principle, but one displays light as it is on camera, the other displays retangles at it's distance location. or something like that

@computerfis 5 лет назад

Wouldn't the card need to support 3d internally to support hardware accelerated ray tracing? I dont know understand your comment.

@ruikazane5123 5 лет назад

And make a GIF that goes on and on at 4k

@tomsparks3259 Год назад

Ben, you have taken something that seems like an impenetrable blur of magic and brought us behind the curtain to see the "wizard" in the flesh. Thank you!

@FoxhoundULM 4 года назад

04:55 "I mean, what do you want from me ? I'm trying to build a video card on breadboards". That's the most badass punchline I've ever heard

@kianroberson8154 5 лет назад

2:58 "I'm not going to hook this up to a computer just not yet" I saw that freeze frame at 3:03!

@srtghfnbfg 4 года назад

pasteboard.co/IORD4YR.png it's a spoiler to show that he's going to connect it to his homemade CPU ? =O

@TheoPantazi 4 года назад

Same. Tried to catch it, that one frame, but couldn't! Hours of fun! :P

@mikuhorizon 4 года назад

@@TheoPantazi put playback speed to 0.25 then pause it

@TheoPantazi 4 года назад

@@mikuhorizon yep I did, I forgot about the playback speed setting, thanks! :)

@bennyswayofficial 4 года назад

@@TheoPantazi or pause near the frame and press fullstop key "." .......on pc xD

5 лет назад

Now u just need a good gaming chair to get more fps

@sarno97 5 лет назад

Add more RGBs

@space1306 5 лет назад

@@sarno97 you're right, few leds added to the board should be quite a nice performance boost

@pappapaps 5 лет назад

How much megapixel would that type of data even transduce? Severely.

@onee 5 лет назад

He also should not forget to download some extra ram.

@sskofu 5 лет назад

And delete local disk c to get infinite fps

@akashsunil7464 9 месяцев назад

This man basically ends up answering every random question that pops up in your head at 3am. when you are not able to fall asleep

@gaellafond6367 5 лет назад

3:03 That image that flashed for 1 frame, wow... Is that where this project is heading?

@hikaruisasleep 5 лет назад

Who knows, but it looks like his long-term project "The 8-bit Breadboard Computer"

@ElPanetone 5 лет назад

This image is from the 8bit breadbord computer video series already available.

@mr.meticulous1241 5 лет назад

He mentioned, “hook this up to a computer...” and showed his breadboard computer HE’S GONNA PLUG IN HIS BREADBOARD VIDEO CARD INTO HIS BREADBOARD COMPUTER

@ddevin 5 лет назад

I counted 2 frames, but yeah, I hope he figures out a way to connect the two.

@mr.meticulous1241 5 лет назад

Arcadefan314 that would be insane XD He would have to write a program to calculate/draw a picture and all the RGB values per pixel, instead of holding a static one in a ROM

@anton201003 5 лет назад

Thank you RU-vid for remembering I wanted to see this video, as I subscribed on the previous one!

@ArtumTsumia 5 лет назад

I forgot to subscribe last time but RU-vid was kind enough to notify me of the new video anyway.

@FalcuunFalcuunn 5 лет назад

"I don't know if this looks like a bird to you" Yeah it does, really does.

@Axqu7227 2 года назад

Thank you for explaining this in an engaging, thorough way my CS professors couldn’t be bothered to. You’re making me want to start playing with breadboards and get back into learning hardware.

@leachim66 5 лет назад

People: There's no way you can top your DIY 8-bit computer!!!! Ben: Hold my breadboard

@leachim66 5 лет назад

Next: "Adding a GUI to the breadboard computer"

@superjugy 5 лет назад

"actually, don't hold my breadboard, I need it to build my gpu"

@uuberr 5 лет назад

Me : *build my own pc* Also me : *Think i am good with computers* Ben : Makes own video card

@5RoD 5 лет назад

😂😂 same

@amineabdz 5 лет назад

Me : * can write assembly programs with only self education and online courses and build computers too * Me : wow i'm kinda good with computers Ben : * Draws stuff on a monitor with some electricity , wires and holes *

@82FGDT 5 лет назад

really makes you appreciate how amazing it is just to see a 1080p desktop

@UNSCPILOT 5 лет назад

Or run a game, even more crazy

@DreamskyDance 5 лет назад

yup, it would be kinda cool if big video card, and computer component companies in general, would do this kind of educational videos with narrators good such as this.

@perfectlybalancedasallthin9319 5 лет назад

@@DreamskyDance Well, a video card, even a low-end one is a thousand times more complicated than this one plus its parts are a lot tinier. Such cards are also produced in a factory. So, making an educational video would be extremely difficult.

@david2438 5 лет назад

@@perfectlybalancedasallthin9319 thera are educational videos about black holes and 4th dimension so i dont think its that hard to make one about videocards

@DreamskyDance 5 лет назад

@@david2438 yup.. i think its more of an issiue of propreitary technology. But it would be interesting if someone could show on a bit simplified examples what exacly happens in Nvidia RTX for example ( as opposed to my old 1050 Ti ). There are specs of cards with release and all, thats nice. Imho in depth educational video would be really interesting for some people.

@kenhaley4 3 года назад

Your explanations are so enlightening! I haven't tinkered with electronics in decades (I'm 74), but now I'm inspired by this and your other videos. Nice work!

@RunFool 4 года назад

Just wrote my first "Hello world!" program. Came out to youtube to hang with the tech types. Turning off my computer now.

@vinceontheweb 3 года назад

Dont give up

@diablo.the.cheater 3 года назад

Don't give up, i work as a programmer and the electronic stuff he does may as well be magic to me, the only thing i understood was the python script and the binary hex part.

@JohnSmith-xf1zu 3 года назад

Don't give up! We all started at "hello world!" We all started out learning the basics. The rest is just study and application. If you are truly interested, you could be doing stuff like this with some study and practice.

@peoplethesedaysberetarded 3 года назад

Everyone starts at “hello world.” And some of these don’t give up. Keep going!

@ashrafulalam3662 3 года назад

@@diablo.the.cheater Funnily enough, that was the only part that seemed like magic to me! I haven't seen shell commands in YEARS

@aydencook03 5 лет назад

WOW... I've always wondered how computers work on the most fundamental level, I'm tired of all of the explanations only going down to the level of "machine code". I'm glad I found this channel. How do you know all of this? Is there a specific topic you could study in school to become fluent in things like this? How did you even begin to learn in a topic like this?

@aronhighgrove4100 5 лет назад

Judging from previous videos, he mentioned books he read about the topic. But more information would be nice, indeed.

@cihstarwhufc 5 лет назад

Study Electronic engineering!

@EekSaidTheCreeper 5 лет назад

A computer science degree will teach you all the things explained in this video.

@orti1283 5 лет назад

@@EekSaidTheCreeper Nope, computer science is all high level stuff, at least in my country. For this you need electric/electronic engineering

@EekSaidTheCreeper 5 лет назад

@@orti1283 Not for me. Any good CS degree will have an introductory electronics course.

@tejasarunkumar4772 5 лет назад

Last time I was this early this calibre of video card was considered good.

@zwz.zdenek 5 лет назад

IKR, 64 colors was a dream config for me for years!

@benwinkel 5 лет назад

I remember the 1st pic i ever displayed on the 1st computer i ever owned was of Gloria Estefan. I downloaded it over a phone line modem and it had worse resolution than this. Man was i excited!

@bgnb 2 года назад

Im proud to say that you are the first content creator I've seen in my entire life who has engaged me this much. Maybe thats because Im also an electronics engineer (I dont really know whether i can call myself an electronics engineer after watching this). But , my man, you've impressed me the hell out. U deserve much more subs than other good for nothing useless creators. Kudos. keep going brother. Would really like to communicate with you. Love from India

@In.New.York.I.Milly.Rock. Год назад

What do you have to be proud about in praising his merits?

@zlr9022 Год назад

Proud🤡 also why bring up good for nothing creators

@curious_banda Год назад

It's just a translation thing / lingo. You know, English is not the first language of majority of world. Monolingual americans won't understand this, especially if the other guy is an Indian, who are on average trilingual.

@zlr9022 Год назад

@@curious_banda then he gotta learn that thats not how we talk in the english language

@curious_banda Год назад

@@zlr9022 Nobody asked to talk with you. You probably don't have friends.

@MrKeebs 5 лет назад

Just subscribed as a Patreon and it already pays off. Incredible work, can't wait to see what comes next!

@robbirobson7330 5 лет назад

yes we need more like this

@doingmoms3483 5 лет назад

How is this comment from 2 days ago?

@MrKeebs 5 лет назад

@@doingmoms3483 I am a Patreon, and if you sub you get the videos earlier.

@dev639 5 лет назад

Wish I also had the coin to put in this one. You have a nice taste of who to back up.

@echofunandgames7874 5 лет назад

How much does patreon pay you?

@peter.dolkens 4 года назад

I found this hilarious as a Windows user - Microsoft Paint forced bitmap on us for years - but you wrote a python script to extract a bitmap from a png =D

@josephlouwerse2105 4 года назад

OHH so thats what bitmap means!! It's a literal map of bits! This is a big revelation to me for some reason

@mikeboggs0 4 года назад

For what it's worth, you'd have to do the same with a bitmap (.bmp) image -- they write data from the bottom row of pixels to the top, and of course still have all the header data and don't have the necessary padding.

@Tadesan 4 года назад

I get it

@diggoran 4 года назад

Yeah I think he could have just increased the canvas size to 128x256 and filled the bottom and right edges with black, then exported as bitmap to avoid the whole python step, right?

@sevret313 4 года назад

You wouldn't get indexed colours like shown with Paint's BMPs, it forces you to use its colour indexing.

@evgeniivorobei69 3 года назад

This is the way everything should be explained in universities. Amazing job!

@farbenpracht Год назад

I'm pretty sure we would have understand woman by now then :>

@In.New.York.I.Milly.Rock. Год назад

That's a terrible idea, especially considering how certain disciplines are logically incompatible with using an example as a metonymy for theory.

@blackwater7183 Год назад

He does teach in a university. Lol.

@reformed_attempt_1 Год назад

isn't it how they explain it in universities already?

@satyris410 Год назад

I love that you include the errors (one might encounter) in your work and not just jumping to the solution

@jamesparker8529 5 лет назад

the interesting thing is that this is more powerful than lots of the 8 bit computers from the 70's and 80's

@rodolforp4200 4 года назад

Cuz of thr integrated circuits , in those times it was not existing yet

@HenryLoenwind 4 года назад

To be fair, their limitations were not really on the circuitry to convert the data into a video signal but in the limited amount of memory to store the data and the limited CPU power to create it. Even with this build, in the end, the size and speed of the memory chip was the limit to what it could do.

@ryanjay6241 4 года назад

@@HenryLoenwind Yep. Something a lot of people don't think about is that, even at a tiny (by modern standard) 640x480 resolution, at 60hz, to update each pixel on a screen would require writing 18 million pixels of data per second. I have doubts that many CPUs from before the late 80s could even handle that. And then consider that 640x480 @ 24 bit color requires at least 1 mb of image buffer - which is almost 16 times the total available memory of a Commodore 64. It's slightly mind-blow and amazing how large the numbers of operations and data modern computers push around while doing "almost nothing".

@rageagainstthebath 4 года назад

@@rodolforp4200 bullshit, they were all available back then.

@m5a1stuart83 4 года назад

But COBOL still control the world...

@RobertMilesAI 5 лет назад

You've got space for several images in that eeprom, right? Could you add a 'frame' counter and have it play a (very) brief animation?

@mrtuffguy2769 5 лет назад

Or a GIF

@morganthomas1463 5 лет назад

@@mrtuffguy2769 JIF

@Iceykitsune 5 лет назад

@@morganthomas1463 Graphics Interchange Format GIF

@toatrika2443 5 лет назад

@@Iceykitsune have you heard of this brand new concept called “joke“?

@computerfis 5 лет назад

Sure he could probably just make some sort of thing on the address bus to the eeprom that would offset the address to the picture he wanted to show, something like (pictureSize * picture_number + counter) then he could increment the picture constant (picture_number) every time he wanted to change to the next picture.

@ruzco4873 4 года назад

-Mom can we have some NVIDIA -no son, we have NVIDIA at home NVIDIA at home:

@BESTofAlp 4 года назад

"some" Nvidia xD

@njlschpprkjrsvk 4 года назад

well this is more epic than nvidia

@muhammadyogi3754 4 года назад

@@njlschpprkjrsvk because free??...

@vykac 4 года назад

@Poff Nada this is simple but honestly cool

@Jontae4288 4 года назад

😂 I’m crying right now lol

@Sentinel95629 3 года назад

I understand almost nothing here, yet I am for some unfathomable reason compelled to watch it still.

@sauliuskrasuckas4355 2 года назад

I think at least you get that it shows how VGA pixels are born. :) And I recommend watching the 1st part too: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-l7rce6IQDWs.html

@lukewarm-tas 4 года назад

PC Gamers: Intel HD Graphics are basically the worst video card! Ben Eater: Hold my beer.

@Austeja608 4 года назад

hold my breadboard

@lukewarm-tas 4 года назад

@@Austeja608 that works

@muhschaf 4 года назад

this Card he build don't crash, so it's more stable then nvidia, Intel and AMD combined.

@feedyoursoul5347 3 года назад

I swear fam its fax

@skinwalker69420 2 года назад

You should try my AMD video card in my computer, I am an AMD guy but this card is terrible, it crashes the video drivers and sends my computer to plaid every time I try to overclock it.

@AaronBonBarron 5 лет назад

> VIM > Mechanical Keyboard > Python This guy is cool

@diamondfailer11 5 лет назад

He's the original Hackerman

@aronhighgrove4100 5 лет назад

Sorry, but VIM is a pain.

@AaronBonBarron 5 лет назад

@@aronhighgrove4100 only until you learn to use it!

@okktok 5 лет назад

AaronBonBarron you’ve described an slightly above average Silicon Valley guy

@ufotofu9 5 лет назад

Ha, I use Vim with an IBM Model M Keyboard in Assembly.

@arkan205 5 лет назад

You're like the nerdy cousin of the guy from Primitive Technology

@KeramatZMode 5 лет назад

Vaporwave Technology

@sarno97 5 лет назад

The guy who built a hut?

@teunschuur7988 5 лет назад

😂😂😂

@mank01101 5 лет назад

Only that this specimen talks...

@danielhetrick3435 5 лет назад

Everybody is cousins with everybody, technically.

@thierrymeuris8042 3 года назад

Great stuff! And what an interesting and educational explanation! I was an electronics/telecom student during the period of conventional TTL and CMOS chips, as well as CRT technology, so this is fully understandable for me! Keep up the good work and I might show this video to my kids! I hope they get the passion for these things!

@sablesanctum 5 лет назад

Meanwhile, I'm having trouble getting a led light to blink.

@xtdycxtfuv9353 4 года назад

ay man this shit tough, i believe in you.

@ChunkyWaterisReal 4 года назад

@@xtdycxtfuv9353 maaaan i wish people just said that more in general about everything.

@WistrelChianti 4 года назад

Don't knock it, we all start there.

@cmuller1441 5 лет назад

In the 90s I played with a fpga and made a 8 bit cpu. The display was a ega monitor. To reduce the number of gates I sacrificed some memory by using some reserved color values to generate the sync signals. Of course this had some drawbacks but had also a nice advantage: to scroll the picture I only had to do a limited number of memory writes to slightly shift the syncs... The fpga was actually too small and most of the display logic was in ttl logic...

@stamasd8500 5 лет назад

Excellent video as always. If you used a W27C512 eeprom you would get 16 address lines, which would allow you to get to a resolution of 200x150 and also get rid of some of the vertical lines because the access time would be 45ns or better; or with a W27C020 you would get all the address lines you need for a glorious full resolution. :) You might have mentioned in the video that the output resistors form the world's simplest DAC.

@paulstelian97 5 лет назад

I still don't get HOW that DAC really works. Still gotta do a bit of maths to figure out how that shit works. I think he made an assumption that we get Z instead of 0 for some reason in the calculations. That said, that means the resistance and the actual voltages will differ for the intermediate values, which isn't that bad actually.

@herrakaarme 5 лет назад

Ooh, you made me remember the Covox Speech Thing by mentioning the simplest DAC. It was an easy task to build, but the only Windows driver I found in those times, when www had been barely invented (and I had no access to it), was poor. A fond memory, nonetheless.

@JoaoBapt 5 лет назад

You could extend that DAC with more bits by hooking more resistors that are powers-of-two times a base resistor, and then connecting the lowest bits to the highest resistors. So, for a full 8-bit color, you could technically find 1, 2, 4, 8, 16, 32, 64, 128 (times some resistance) resistors and hook the bit 0 to the 128 resistor, the bit 1 to the 64 resistor... but then it would be easier to use an actual DAC.

@paulstelian97 5 лет назад

@@JoaoBapt Nice. Again, gotta do a bit of maths on how that works but holy fuck is that nice.

@WarrenGarabrandt 5 лет назад

@@paulstelian97 This is essentially a fancy Resistor Ladder (en.wikipedia.org/wiki/Resistor_ladder). If he wanted to use up all 8 bits of the data for color information, he could get 256 colors (including black and white). Use 3 bits for Red and Green, and 2 bits for Blue. It will look just fine because our eyes are actually pretty crap at seeing blue anyway so lower resolution for blue is fine. I would actually recommend biasing the middle range values of the outputs to lower intensity than they would be in a linear configuration. This is like gamma correction in a way. Our eyes aren't very good at seeing small differences in high intensity signals compared to small differences in low intensity signals. Imagine trying to see the intensity difference in 1 light blub vs two, and then comparing that to 100 light bulbs vs 101. It's the same difference in intensity, but our eyes are much more sensitive to changes in low intensity signals (contrast ratios are biased towards dark).

@TrevorAvrett 3 года назад

There's no way I could sit through all the work you did here for this!! Skimmed through it and the first video just to see if it was legit. Computer science people should have the money, NOT influencers. To have the mind and patience to do these kinds of things is incredible! All the effort that went into this for a poor picture blows my mind to consider all the slaving over people who think like you do for each, stupidly faster generations of hardware we get to enjoy. Props to you guys for being the unsung heros, designers and architects of our daily lives

@multivariateperspective5137 3 года назад

Thank you! People that solve problems for real should have the money and influence. (ie Elon Musk)

@Axqu7227 2 года назад

@@multivariateperspective5137 Musk’s engineers. He’s a venture capitalist that doesn’t do jack on his own.

@saudude2174 2 года назад

people choose where the money goes, if they wanted to fund engineers instead of influencers they could do that average joe doesnt give a shit about physics and engineering, theyd rather watch funny videos or football - hence so much money in football. Basic rules of capitalism and it's good that way, no better system has existed before.

@baameows 5 лет назад

finally, now I can run minecraft shaders.

@ThePoinball 5 лет назад

Man ! Its Awesome ! I'm a Tech Artist At Ubisoft and your VideoCard Making Video made me Understand how the Electric signal can be translate to an Image on the screen. BIG THANKS !

@RoopsForge 5 лет назад

please stop milking the assassin's creed franchise.

@paladin1147 5 лет назад

@@RoopsForge He is a tech artist.....

@CWJester 5 лет назад

@@RoopsForge lol thats like telling a cashier at a store to stop stocking a product you dislike. Big oof

@UpcycleElectronics 5 лет назад

Help! I'm from the future. In 2025 Ben Eater's breadboard computer takes over the world. We are all trapped in a 8 bit lo-fi minecraft hell

@theodoros_1234 5 лет назад

LMAO

@nicolemartelli9033 5 лет назад

8 bit lofi minecraft hell sounds like a chill venue

@qouteler6092 5 лет назад

hell? you mean paradise

@retardcorpsman 5 лет назад

Shit...

@marekmichalovic8711 5 лет назад

Until the creepers come

@doveshouse 9 месяцев назад

Even though the object was to display a video image, so much additional information, applicable to more generalized and broader areas, can be inferred. Phenomenal video!

@MaxwellNieberger 5 лет назад

I would really love to see this display multiple frames using the extra space in one of those EEPROMs. In fact, you could almost take it a step further and use swapping between two images at 60Hz to make intermediate colors in between any two existing colors. That would take one extra flip-flop using the reset pin of the y counter so that it switches between 1 and 0 every frame, then tie that to the high address bit of the EEPROM. The harder part would be converting images into the right format to be displayed like that

@renakunisaki 5 лет назад

@@kezif don't even need a second ROM, this one is big enough for multiple images. Just the the frame counter to one of the higher address lines that's not being used.

@ecicce6749 5 лет назад

Please combine it with your breadboard computer. I want to see it produce some lines or circles

@raiguard 5 лет назад

3:03

@goodclover 5 лет назад

@saladnuts Yeah, it would probably do rectangles and stuff though, or pre-defined shapes in eeprom that could be resized

@karlkastor 5 лет назад

It's probably too slow.

@msclrhd 5 лет назад

@saladnuts Taylor series approximations of sin and cos with a fixed point representation (4.4?). You could then unroll the iteration loop to the desired precision, keeping track of x^n and n! at each value of n, updating either sin or cos at that step, with sin=x and cos=1 at the start (so you can start from n=3 with n! initially set to 3! and multiply x by itself 2 times to give x^3). Doing this you could compute them together, updating cos at the even values of n and sin at the odd values of n. You may only need 2 additional steps to get a sufficient result for this case. Interestingly, Doom used 2 steps of a similar algorithm for computing the inverse square root. Another alternative is to pre-compute the sin and cos tables for a given circle size on the EEPROM and look them up as needed.

@WarrenGarabrandt 5 лет назад

@@karlkastor It might not run Crysis, but we could watch it draw the lines and circles pixel by pixel, which is even more exciting.

@kevinfontanari 5 лет назад

100x75 pixels is not that bad, it's a lot more than I thought would be practical to build...

@DFX2KX 5 лет назад

The Adruino-based Gamebuino META has a resolution very close to this. It's quite usable once you get used to writing games for it

@DFX2KX 5 лет назад

(in fact most folks don't even use the full-RGB mode, they use 16 color indexed because of the lower RAM use. when you've got 16k....)

@Kalvinjj 5 лет назад

like, we had lower resolution color displays on phones when they started to have color displays. For a breadboard graphics card it's quite amazing indeed.

@landonsarrett5686 2 года назад

"Lopping off" lower vertical counter bits to make evenly-sized pixels is such a simple & elegant solution lol

@markkoetsier6475 5 лет назад

But seriously, I love that Special Thanks section, never seen it applied quite this creatively.

@fluffycritter 5 лет назад

I love that hotswapping EEPROMs is a thing you can do.

@computerfis 5 лет назад

@@fluffycritter Yeah it was a pretty cool thing he did there :D

@pesho9971 5 лет назад

"I'm not gonna hook this up to a computer YET" -this is gonna be awesome

@wojciechm.1094 5 лет назад

Awesome work! The "Lena" picture in the thumbnail was nice reference :-)

@CollinBaillie 5 лет назад

wojciech m. Please explain?

@sligovolts 5 лет назад

@@CollinBaillie "Lena" is the name of the model whose photo is commonly used by computer scientists when they want to demonstrate algorithms and/or anything related to computer graphics

@bskull3232 5 лет назад

@@sligovolts The most famous Playboy model ever in computer industry.

@Hamish_Whitehaven 2 года назад

But can it run Farcry ?

@echineziplays676 5 лет назад

I can barely get a light bulb to switch on and this mans making his own damn graphics card.

@khalidbashir2037 5 лет назад

Video card*

@echineziplays676 5 лет назад

@@khalidbashir2037 Yes*

@martinstam5241 5 лет назад

And makes it look easy too..

@HappySlappyFace 5 лет назад

@@geang.carneiro3982 this produces a video signal from information it gets from a rom or something its doesnt process any data or calculate polygons or anything like a gpu

@khalidbashir2037 5 лет назад

@@geang.carneiro3982 Huge difference, GPU's are used for massive calculations done to produce 3D/2D polygons/structures/algorithems for a process be it a game or AI program. Where a video card is responsible to light up specific pixels with specific colors (an visual image) it takes pixel data as an input.

@spectrthechamp3658 5 лет назад

Overclock that puppy and then you could really pump frame (Singular)

@peterpain6625 5 лет назад

Watercool it! No... ln2! ;)

@dan_loup 5 лет назад

It's all tied on how fast you can change the video memory. If you can change it at 60 FPS, that video card WILL display the video at 60 FPS. But i think his hand will get tired if he goes over 2.

@david-sv3kg 5 лет назад

It kinda is over clocked. That's how the black verticle lines are created on the screen.

@spectrthechamp3658 5 лет назад

@@dan_loup so overclock your arm?

@dan_loup 5 лет назад

@@spectrthechamp3658 Or that or come up with a mechanic arm that switches the chips quickly.

@wolverine9632 4 года назад

The fact that this would be top-of-the-line in the 70s is amazing. Imagine a video game console based on this fairly simple design

@Blafaselblubb 4 года назад

I hope he hooks it up to the breadboard computer later

@Speaktrap 4 года назад

That's still the worst video card, as whole the weight of processing image goes to CPU

@ZXRulezzz 4 года назад

That basically would be ZX Spectrum, but with more colors and way less pixels

@Benoit-Pierre 3 года назад

@@Blafaselblubb he did it just today :)

@zombieman81 3 года назад

Well in 1981 in the UK we had the ZX81 with 64x48 monochrome pixels for drawing, though actually there were 32x24 characters of 8x8 including a range of "quarter block" characters to support the 64x48 "graphics", then in 1982 the ZX Spectrum with 256x192 proper pixels with 8 main colours plus bright/not bright (4 bits).

@Stomachbuzz 3 года назад

14:06 "So what I'm gonna do is add a NAND gate here..." Actually laughed out loud. Seems like he just throws NAND gates at every issue he runs into

@fryingpanprime4312 5 лет назад

3:03 holy shit, the excitement is real.

@paulstelian97 5 лет назад

Well there needs to be a bit of a redesign that changes the bus width, the instructions and to support 16-bit regular RAM and 20-bit video RAM (and support for accessing that). A 16-bit bus and an external device that allows writing to video RAM. And doing a bit of MMIO would be supreme.

@fryingpanprime4312 5 лет назад

@@paulstelian97 One can dream though.

@Jarko1401 5 лет назад

Having A15 free you could have programmed 2 images to one ROM and switch them

@DFX2KX 5 лет назад

"Frame buffer" Yo! :P

@fft2020 5 лет назад

the switch would be too fast, you wouldn't see anything Then he would have to introduce some kind of delay circuit... maybe on another video...

@FerrybigGaming 5 лет назад

@@fft2020 He just needs to add another few JK flipflips to the output of the vertical blanking signal, add 8 of those delays the signal for about 4-5 seconds

@fft2020 5 лет назад

@@FerrybigGaming and switch the address position on the EPROM to the other images