Acerola is the goat of doing random shit with shaders

@felixmoore6781

14 күн бұрын

I don't like goats.

@Cz_Dani

14 күн бұрын

​@@felixmoore6781 i love goats

@1vEverybody

14 күн бұрын

@@felixmoore6781 do you like acerola? Then you like goats

@ewerybody

12 күн бұрын

you mean goat like Greatest Of All Times?

@felixmoore6781

12 күн бұрын

@@ewerybody goat as in GOAT, you goat

Acerola is just fantastic. His video so effortlessly mix shit-posting, meme-ing, pragmatic problem solving, application of math, all while projecting a sense of comprehension into the viewer. To be honest, I don't understand the math behind some of his VFX programming, but he makes me feel like I did. I'm really glad Prime picked this up, because Acerola deserves the visibility this will bring to his channel.

@TheFeelTrain

12 күн бұрын

His video about color is one of my favorite videos ever. He takes such complicated subjects like color spaces and makes them easy to understand.

@jakes-dev1337

12 күн бұрын

You've been able to do this with Reshade for years. Just install reshade to your exe and select your renderer (D3D, OpenGL, Vulkan).

@JonathonMcClung

11 күн бұрын

He knows about reshade. He even uses it in the video. It’s about making the existing effect better.

@kibo8206

9 күн бұрын

@@jakes-dev1337 bro's a professional hater

@AtariWow

2 күн бұрын

@@jakes-dev1337 Sure, but he made his own shader and implemented it with reshade. Tell me you don't know how shaders works without telling me. This is like saying you've been able to do this forever with optifine when discussing someones custom made shader in minecraft. Makes no sense.

Need more reactions of acerola videos from prime. This guy is a magician with shaders

@Strawberry_Htet

14 күн бұрын

Agree 👍💯

@jakes-dev1337

12 күн бұрын

You've been able to do this with Reshade for years. Just install reshade to your exe and select your renderer (D3D, OpenGL, Vulkan).

@boaphil

12 күн бұрын

@@jakes-dev1337 Yes and He is using Reshade? But he is not just installing some existing shaders, he is making them

"A sufficiently advanced shader is indistinguishable from a duck." -John Carmack (probably)

Prime reacting to an Acerola video? Damn, that’s a pretty good birthday present

@Poluact

14 күн бұрын

Happy birthday!

@_kostant

14 күн бұрын

Hopefully it keeps getting better from here on out! Happy birthday. :)

@zekiz774

14 күн бұрын

Thank you all :)

@7heMech

14 күн бұрын

Happy birthday 🎉🎉🎉😊

But Acerola 😳

@gagaxueguzheng

14 күн бұрын

But Acerola

@TechJolt3d

14 күн бұрын

But Acerola

@mirzaangon

14 күн бұрын

but aceroooola

@bishan_8617

14 күн бұрын

but aceroolaaa

@rubendavid8865

14 күн бұрын

but aceroolaa

Prime should 100% watch the pixel sorting shader video

@MadsonOnTheWeb

14 күн бұрын

One of the Acerola's greatest videos

I’ve pre-watched this Acerola vid

2:52 Having seen the original video before, I was waiting for the moment where Acerola would say it wasn't good, just after Prime was saying it was good. Got a good chuckle from me.

Before I discovered atan2, I had to make “atan2 at home”. The atan (arctangent) function takes the slope (ratio of y/x) and returns an angle. Unfortunately, you lose information if you just provide it a pre calculated ratio such as whether either or both of the components were negative, so classic atan can only give you an angle between [-90, 90]. atan2 takes the components separately, so it can also use a bit of logic to return all the angular values [-180, 180].

@HedgehogGolf

14 күн бұрын

I remember doing that in the Scratch programming language back when I was messing around with it lol When I learned that other programming languages just have that function built-in, my mind was blown

ASCII does not define the _font_ or design of characters but the map between byte and character representation. Extended ASCII is not an encoding by itself (confusing, I know), but a classification, or "repetoire". Many OEMs would create their own version of Extended ASCII, some being ANSI-compliant, while others not. DOS and Windows, before Unicode was formed, would have their own Windows-1252, while other OEMs like IBM had their Code page 437-as you probably know from IBM PCs boot screens and BIOS menus. The latter has box-drawing characters included, where the former uses them for accented characters. For example the box drawing character "block" (0xdb) in CP437 maps to a █, but in CP1252 maps to a Û (u-circumflex in CP1252). Both are in the Unicode standard (which is why you can see them in this text). So no, there's not one right way to represent ASCII art. It is totally up to the character set and font design. You _could_ say it would then be "ANSI art" since they extend ASCII, usually with 1 extra bit, but lets not be pedantic :)

@zekiz774

14 күн бұрын

@@dealloc Pretty interesting insight. That would make a pretty bad title though

Acerola is a very great guy, you should watch more of his stuff, it's always super interesting and cool

@zekiz774

14 күн бұрын

@@mantevian it's even interesting and very entertaining if you don't understand most of it. His videos somehow always make me want to understand what he's talking about

TIL Acerola exists, and my life has been enriched.

That's where the phrase "image is worth a thousand words" began

@DeSpaceFairy

14 күн бұрын

You have to found a thousand words in it first, what are the rules anyway? If there's 999.9 words, does it round up? Is needed to be a thousand different and unique words? Does it need to be a cohesive text with structured phrases? Are duplicate of the same allowed, is just thousands of "a" okay?

@neetpride5919

11 күн бұрын

Dude what if he made a shader that only rendered complete words that described the object. Like he made a game where you solve puzzles by putting on the glasses from They Live

Acerola is dope. I love his videos and he deserves recognition.

It's crazy how toxic chat was at the beginning just because Acerola stated his artistic opinions, but as soon as he started talking math and showed off his edge detection, suddenly chat was super kind.

@Foulgaz3

10 күн бұрын

Yeah it was hilarious how soon they flipped

Let’s goooo baby! Acerola is OP

splitting the luminance linearly into bins feels like such a bad idea since brightness is a log scale. It would probably look a lot better if you use more bins for the darker values

@Eltaurus

14 күн бұрын

Not mentioning that the brightness of source pixels was accounted for twice - first by selecting a character from a subset and then the second time, by multiplying the result by the source color. This practically applies a gamma correction with γ=2 to the whole image, making it much darker and less coherent.

@Aidiakapi

14 күн бұрын

You're having it in reverse. Brightness (as shown) is in gamma space, which gives it more variation in the darks. If he did this in linear space, the whole screen would look near full brightness to us.

If the Sobel filter is an approximation of the gradient, the difference of gaussians is an approximation of the Laplacian (the divergence of the gradient). Intuitively, the Sobel filter looks only at first derivatives, while the difference of gaussians is looking at the second derivative. I think what the difference of gaussians is doing here is effectively removing large scale contrast variations (makes things hard when thresholding for edge detection) and blurring out noise (with the gaussian filtering), so that the Sobel filter has something cleaner to work with.

@isodoubIet

14 күн бұрын

Another thing taking the Laplacian does is help resolve thin lines. If you have a line that's just one pixel wide, applying a Sobel filter will not capture it because Sobel has the highest response to step changes in luminance. A Laplacian filter however responds to peaks and troughs as well, and the blurring out should help those lines get found (albeit doubled) in the Sobel pass. I'm curious what the effect would look like with a more principled approach: instead of edge detecting, you could essentially use the characters themselves as the kernels, and then pick whichever character produces the strongest response.

my mans just casually busting out the wizardry

LETS GO finally prime got to acerola. Man he is THE one, every video is a masterpiece

Acerola is a certified wizard!

Happy to see Acerola getting the clout

Prime dancing to Persona 3 music at the end made my day haha

acerola is a friggin genius

0:52 I feel sorry for y'all, the Seven Seas hogged all the best ASCII artists out there. And the full bright, shade and empty extended character sets are available in codepage 437, the codepage for the US in MS-DOS, which is the only codepage most ASCII artists and NFO viewers care about. The DOS text mode came with tons of line, shadow and box piece characters for making mice-centric GUIs in the days before Windows.

I studied image manipulation for 2 years and I do gamedev from time to time so this video was easy to follow and nice refresher on my rusty skills. I will make a demo when I get time I guess.

Prime reacting to Acerola. Is this heavan.

Acerola is literally the goat, love his every vid

Acerola the goat inspired me to make my own shaders...

Acerola is the graphics god. Love all of his videos

Acerola chads rise up.

That was absolutely amazing, wtf.

Great video and reaction. Got me hyped for image processing. Sad I forgot what I learned way back in school.

YES!!! Love Acerola's videos! Happy to see him getting more attention!

Yessss Acerola is awesome, glad hes getting plugged here

The result was amazing, and he went the smart route because you can get high color fidelity by simply brute forcing it to find the optimal fore/back/char combo, or you get "shape fidelity" by using edge detection. To put both to work in a "visually pleasing" way is no small feat. Now that said... from someone who had at some point to do vector drawing for some years to put food on table, and that implied A LOT of bitmap tracing, i can tell you that no "easy solution" or "hand crafted algorithm" will ever achieve what a human can do by hand, either for vector drawing or ASCII art, which you could sort of call "low res semi vector art". This is a thing that just SCREAMS Machine Learning, it's just that... we're lacking the big data it would take... And good luck on getting that, as convincing people that do bitmap>vector to give out data is the same as convincing them to phase out part of their income ;) p.s. anyone suggesting auto-trace tools, just no, nice in a tight spot, good quick fix, not good enough generally as it takes so much work to clean up that yo might as well DIY

@Foulgaz3

13 күн бұрын

Actually the lack of data isn't true. It's an older architecture, but CycleGAN is kinda built for things like this. You essentially just need two collections of images in different domains. For example, pictures of apples and pictures of oranges. The model then learns to convert pictures to and from both domains. There's no need for there to be 1-1 equivalents of each image It would take some modifications and some manual curation, but definitely possible Edit: Should also mention pix2pix here which is another type of GAN called a cGAN or conditional GAN

@ErazerPT

13 күн бұрын

@@Foulgaz3 What are you talking about? Because we're talking about img2vector and img2ASCII. Yes, img2img is pretty much solved, because... there's PLENTY of data. But what we're talking about... no data... on the output side. You can have as much as you want on the input there's images up the wazzoo everywhere, it's the output side that's lacking.

@Foulgaz3

13 күн бұрын

@@ErazerPT hence the modification, but this could actually still be img2img. Just use softmax instead of sigmoid for the color channels and then use a one-hot encoding to dedicate the ascii characters you want to use to different channels. So an img2img architecture could be adapted to it pretty easily. Then it just becomes encoding data into that format. All that should take is collecting txt files for a bunch of ascii art. Sizing would be an issue, but you could encode the ascii art and then interpolate it to whatever size you need. This would end up with floating point values, but it'd effectively just be doing label smoothing. Eventually you could probably use some semi-supervised learning by curating the results you generated to create a larger synthetic dataset. So yeah I don't really see the problem

@ErazerPT

13 күн бұрын

@@Foulgaz3 Ok, now i understand the thought process. And you're right, you don't see the problem. The point is NOT to turn "this image" into "a generic ASCII art of the subject matter" but to turn it into a "high quality ASCII art of the subject matter". The former you have data for, just scrape the web for it. The later you don't, because you need both the source image and the ASCII art someone made of it. Take for example castles. Plenty of images, and plenty of ASCII art. But not "image AND it's ASCII art" pairs. It's easy for example to do img2text, IF you're after the "overall description" and not "every detail". And given ASCII art is ALL about the details... extrapolate the conclusion ;) p.s. on the scaling part, you'd need a very smart upscaler to synthesize "larger sizes" for the dataset, because ASCII art doesn't scale too good using naive methods. "|-" for example will scale into "|---" at 2x for most cases, never "||--". But "-=" will most likely scale to "--==". And "/\" scales most likely to "/ \" because part of it "went up". What about "/_"? Well that is most likely "/___" AND some "went up". Not integer scaling? Good luck with that. It looks a lot easier than it is.

@Foulgaz3

13 күн бұрын

@@ErazerPT oh I didn't mean to imply it'd be easy. I've done enough similar projects to know that it wouldn't. More just that you wouldn't strictly need one-to-one pairings. Thanks for the conversation btw; it's nice to talk with someone who's clearly familiar with ML. I actually agree that there'd be plenty of other problems you'd run into along the way that make it very difficult. But I will say that the problems you pose aren't impossible obstacles. Your concerns regarding interpolation mostly boil down to the encoding not being very robust. To fix it, you could come up with a more robust scheme that preserves visual relationships between characters. In text processing, character encoding schemes often seek to mathematically preserve semantic relationships between characters, like 'A' - 'a' + 'b' = 'B' or '[' - '(' + ')' = ']'. In this context, you could maybe record the sine and cosine for angle along with like luminence for the image side of things. You should even be able to come up with things like implied curvature or corner angles if you get clever. It's essentially a problem of feature engineering at that point. Certainly nontrivial, but not impossible. To encode characters, you could pick a point of your encoding space for each one to belong and use the points to create voronoi cells to do the reverse. That or just a regular nearest neighbors algorithm. This would probably be the best way of doing it bc you could potentially convert between different styles of ascii art. By itself that'd probably be a really interesting project There's also other ways you could do it that'd have their own pro's and cons. You'd definitely run into plenty of problems, but personally these are the types of projects I enjoy.

It reminded me school days when I learned about this subject, really great video!

> Watches a video on ASCII Shader > Suddenly wants to become an edgelord

If you're curious about how he knows what he knows, you could watch his 100,000 sub special: 'What Is A Graphics Programmer?' A great video as well.

So glad to see you check out Acerola the man is absolute CHAD and I hope you check out some of his other videos because they're all so good

Acerola is so good and entertaining, I love that guy.

Can't wait for the from webdev to graphics programmer career update video. I am also transitioning from AI script kiddie (language model research) to graphics programming right now...

10:13 These aren't just any old cat girls, Prime...

@RandomGeometryDashStuff

14 күн бұрын

wrong timestamp

@godowskygodowsky1155

14 күн бұрын

​@@RandomGeometryDashStuffThanks. Fixed.

Acerola has awesome videos just like this going over over types of shader techniques or other computer graphics programming related stuff

Acerola is amazing. We need moree

You should see the video "your colours suck", that analizes color theory.

My god, the guy shadered the matrix

I love acerola omg I might try this shader on a game project just to see what kind of weird little games i can make with it

I LOVED THIS VIDEO! THANK YOU!

holy this guy is a god. i studied quite a bit about edge and image processing in my 2nd year uni and i knew some of what he was talking about but man being from just knowing about something to actually doing something as fantastic as this is just magic. I wonder when i will become a tier 6 grand mage like him

My favorite part of this is the implied detail from motion. What I mean is your brain fills in the detail that is missing during like a cutscene or something. It's awesome.

I love acetola videos so much

Woah processing code is so cool

Why is my linear algebra all on a hyper sphere?

My jaw dropped like 8 times in this bruhhhhhh

That is the AWESOME thing about shaders, I wanted to learn more about it but haven't got the time to do it

I love when someone puts out something insanely niche, and then the other guy with the exact same interest finds it.

Love acerola, more reacts to his other stuff would be sick haha

Returnal: 🫥 Prime: Sooo good Ace: Not good

This guy is literally an Edge Lord. 🤣🤣🤣

Seems we all loved acerola from before, love it

I needed this video rn

You can get this on pretty much any game using a program called *ReShade* then install the ASCII shader preset. I got it working on *Unreal Tournament* and *Hades* and it's pretty trippy, but you don't get characters that properly outline edges though

EDGELORD...Perfection!

So surprised to see Acerola here! Fuck yeah! Dude deserves the attention!

27:40 "What kind of wizard is this!?!" This is the power of *one* graphics programmer

I fucking love Acerola so much I am among his first 10000 or so subs and for good reason

The game Saints Row (i believe the third one?) also had an ascii shader that activated during certain part of the game and you can also use a cheat code to unlock it and use it permanently. When i saw it for the first time i was amazed because it didn't even lower my FPS on my low end laptop back then.

When all you have on your computer is Kitty lol

Acerola on Primagen is something I really wished for. Love em' :D

Acerola+Primeagen "Vim with me" colab would be amazing!

oh my god is happening two of my favorite programing content creators in one video. No I'm waiting for him to get invited to a stream

Ensha couldn't hold a candle to this level of "visions of edge, lord."

The problem with extended ASCII is that, depending on the OS and country, it completely depended on the code page that was used. The full block appears in the DOS code page 437, which is the native code page for the original IBM PC. Now that we have Unicode, we can use any defined character from any language. I think sometimes that typographical characters and ASCII are terms that may get conflated a bit.

There used to be a "Text Mode Demo Contest" scener party releasing ONLY such demos

I am currently at the stage where i am really understanding graphics programming, after couple of years of trying for weeks probably, it's hard to piece all the pieces together :) it was very painful but now, damn i feel like in candy store :D

Fun fact, Acerola is a common fruit in Brazil. I like to make drinks with it after pythoning all day

Dude I was trying to look at cool Elden Ring art I had no idea I was walking into a calculus lesson.

For the record Prime, this is now officially a research.

My boy Acerola is famous now

I KNEW this was gonna happen lmao. Worlds are actually colliding rn. But Acerola!!!

A long time ago, I had a gpu that came with a feature that let you change the shaders in various ways. One of the ways was to make any game into green ascii art, which made it look like Neo's vision in the matrix (though it was english characters). There was also a filter I used when playing through Tron 2.0 that made the game look like a colorized black & white movie. My current gpu is leagues above that old one, but I don't think it can compete when playing that game.

Shaders were basically magic to me and then i took an artist course on doing it with nodes in blender and then it just unlocked something and now i can translate the shaders i make in blender to other languages Edit: if you hae the capability of graphing y=mx+b on a calculator you can make procedural shaders Edit2: if your mind is hung up on how to design shaders and actually have them visually pleasing, node editors are used a lot for shader code i think because its easy to look at the visual output of every step, design a mask properly and then use the mask to mix two images, its like a complicated spaghetti of photoshop mix operations

Well that's new! When you say subscribe in the video, the subscribe button flashes a rainbow border.

That shader seriously needs to be a full on mod for many games. Absolutely stunning!

I like to use the ACSII reshade shader on games sometimes, just fun to look at.

Gosh I wish I was in the stream for this one. Always nerd out over image processing stuff

A solid block did exist in the 8 bit character tables for Apple ][, most IBM-PCs, PET(?)/Commodores, etc. In the era when we really had to use it, it was not uncommon to see. To the point there were translators for BBSes that handled the "upper ASCII" and converted art whatever system you were using -- with varying results. Also, you can (like the Apple ]['s "block" where bit 8 was just inverting the cell of the 7 bit character), just use a space that is inverted. Once you accept you're using ANSI escape codes to do fg/bg colors (moving from ASCII art to ANSI art), blocks are just inverted spaces anyway. TUI interfaces, from ANSI based to Borland IDEs, used both. I had custom macros in {COMMO} (think a BBS client that is more akin to emacs/neovim than a dumb terminal) that drew frame lines around my comments. It irritated some people using older CP/M machines and other 7-bit systems, but was impressive for those that could view it.

23:19: Thinking about the Victorian era 23:21: Living in the Victorian era

Given how much you love this stuff, you should check out the old DOS program TheDraw. We used TheDraw to create all the BBS screens back in the day, including ANSI and extended ASCII characters like the block. I used TheDraw a few years ago when I created a BBS for iDOS on the iPad. Up until Apple nuked it anyway, because people kept finding ways around the side-loading of DOS games.

Someone's going to replicate this effect for their indie game that's about being trapped in a computer terminal and it's going to win best art direction in award shows.

Acerola!!! amazing dev

Acerola is the best! Huge fan.

I'm just sitting here watching waiting for his mind to explode when he realizes that Acerola is making a live shader out of this.

@Primeagen will soon be game dev.

15:10 And you are nothing short of that, which is one of the many reasons, I like watching your content so much ❤

ive honestly really been trying to come up with a way to generate them like they used to be like

Ultrakill players WOULD PLAY THE WHOLE GAME WITH THIS.. They literally already have speed runners in the worse graphics options popssible which ends up as just chunky.

Acerola in primeTime, can beleave it