The Secret Behind Photorealistic And Stylized Graphics

Подписаться 198 тыс.

Просмотров 156 тыс.

50% 1

Thank you Helix Sleep for sponsoring! Click here helixsleep.com/acerola to get 30% off an Elite or Luxe mattress (plus two FREE pillows!) - or take 25% off sitewide - during their Memorial Day Sale, which ends May 30th. If you miss this limited time offer, you can still get 20% off using my link! Offers subject to change. #helixsleep
Despite aesthetic diversity, the math that drives video game and movie lighting is almost always derived from the same exact lighting model. Knowing is half the battle, so today we go over how Disney derived their hallmark principled BRDF and how you could do it yourself!
Support me on Patreon!
/ acerola_t
Socials:
Twitter: / acerola_t
Twitch: / acerola_t
Discord: / discord
Github: github.com/GarrettGunnell/Dis...
Topics Covered: what math is, how light works conceptually, the rendering equation, diffuse light, lambertian reflectance, lambertian diffuse BRDF, specular reflectance, phong lighting, blinn-phong BRDF, microfacet theory, the microfacet BRDF model, the Burley diffuse, microfacet distribution, fresnel reflectance, geometric attenuation, Disney's principled BRDF
References:
seblagarde.wordpress.com/2012...
media.disneyanimation.com/upl...
boksajak.github.io/files/Cras...
github.com/wdas/brdf/blob/mai...
diglib.eg.org:8443/server/api...
Music:
Afternoon Break - Persona 3 OST
In A Moment's Time - Skullgirls OST
Junes Theme - Persona 4 OST
Midori Eyes - Paradise Killer OST
GO!GO!STYLE - Paradise Killer OST
New Game - World Of Horror OST
During The Test - Persona 3 OST
Layer Cake - Persona 5 OST
A New Frontier - Va11Halla OST
Judgement - Sonny Boy OST
Neon District - Va11Halla OST
Every Day Is Night - Va11Halla OST
Your Love Is A Drug - Va11Halla OST
With Renewed Hope, We Continue Forward - Va11Halla OST
Like A Dream Come True - Persona 4 OST
Afternoon Break - Persona 3 Reload OST
Thanks for watching!
This video is dedicated to my friend, Alotryx.
#acerola #gamedev #unity3d #graphics #shaders

Наука

Опубликовано:

27 май 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 678

@Acerola_t 28 дней назад

@somewhatBoring 28 дней назад

@Sietse154 28 дней назад

I wasn't paying attention and heard 'customized matrices' and almost got excited

@fierrosound 28 дней назад

That was one of the best promotional integrations I've ever seen. Your ability to be entertaining no matter the topic is just ridiculous! Plz buiz people send this guy more money!

@Wisef1sh 23 дня назад

But Acerola...

@burnobad 23 дня назад

Thank you, great video. As someone who recently finished college degree in "Game Development", but needs to enchanse my skills to qualify for job positions, i want to say that your videos are increadible and they have helped me a lot

@WarriorOfJelly 28 дней назад

but acerola,

@tonygamer4310 28 дней назад

but acerola!

@Ikxi 28 дней назад

but acerola,

@matytoonist 28 дней назад

but Acerola,

@slepp449 28 дней назад

but Acerola,

@Sped55 28 дней назад

but acerola!

@StupidEdits 28 дней назад

"A computer doesnt know what these words mean" me too computer, me too

@D.S69 28 дней назад

same

@felicityc 28 дней назад

thank you acerola, I can finally continue to use advanced lighting techniques for making my hentai games in unity

@Apersonl0l 28 дней назад

-links?-

@acceptablecasualty5319 28 дней назад

please do, most of those have TERRIBLE optimization

@tom-on 27 дней назад

@@acceptablecasualty5319 How would you know?

@jeanzyx1707 26 дней назад

@@tom-on the important is that he does implement it. The rest is irrelevant.

@pacomatic9833 25 дней назад

Now ********* will be twice as realistic! And you're not even using VR yet!

@ZettXXII 28 дней назад

"if you think this is too simple... just remember that you're the one that convinced yourself that math has to be complicated" so good

@n3vin192 28 дней назад

As a graphics engineer who had to work on implementing Disney BSDF, this video is amazing.

@felixmoore6781 25 дней назад

Somehow I doubt this video is a graphics engineer, but it sure is amazing.

@MarsCorporations 22 дня назад

@@felixmoore6781 This video is, in fact, not a graphics engineer. It is a collection of bytes, waiting to be decoded into rectangular bitmaps and played back at a fast pace to give you the illusion of motion.

@irgendwer3610 22 дня назад

@@MarsCorporations you just broke my immersion.

@MarsCorporations 21 день назад

@@irgendwer3610

@ConiferCreates 28 дней назад

Acerola last video: "Rendering Equation? What's that?" Acerola this video: "Anyway, here's a video all about the Rendering Equation"

@lawlygaming8622 28 дней назад

The kinda guy to answer his own questions and share his results with the rest. Part of why I love this guy.

@CockatooDude 26 дней назад

The amazing power of learning.

@zyansheep 25 дней назад

@@lawlygaming8622Its the circle of -life- science!

@victoravilaparcet904 28 дней назад

"Why is this the denominator?" For those curious as to why 4 is the correct constant to use in the microfacet specular BRDF denominator, see Earl Hammon's 2017 GDC talk's slides ("PBR Diffuse Lighting for GGX+Smith Microsurfaces", p.32)

@whackaB 27 дней назад

That’s a whole lot of letters

@DakkyW 27 дней назад

bless thank you

@l3monguy 26 дней назад

@@whackaB Hah, he just made those words up

@bartolomeus441 26 дней назад

I'm 80% sure that if I look it up, I will get rickrolled

@itec-ss5pk 22 дня назад

I knowww this man didn't just flawlessly APA in-text cite a lecture after hours

@artemisDev 28 дней назад

I think dot product is very underappreciated. There should be a dot product day like we have the pi day.

@monad_tcp 28 дней назад

you probably don't need PI if you can do dot product. true fact of linear algebra, the only mathematics that you should actually learn, because its actually useful

@JohnnyWednesday 28 дней назад

Another shill for "Big Dot Product"

@Grstearns 28 дней назад

I nominate the Spring equinox

@NotABean_ 28 дней назад

i agree!! dot product came in clutch the other day when i need to calculate player movement on slopes for a platformer. 10/10 function, will use again

@enque01 27 дней назад

It sounds like you would appreciate the videos on "geometric algebra". Search for them. Thank me later.

@screej1088 28 дней назад

I love Acerola’s videos because the further in we go the less words I understand

@admiraladama5877 27 дней назад

It’s the PBS space time of graphics programming. And the more you listen the more it slowly starts to sink in

@zekiz774 23 дня назад

Yeah you have to watch the video multiple times to fully get it. The second time watching it, I actually kinda understood what's going on.

@pisscvre69 18 дней назад

even words i should get i dont like how he kept saying “fernel” when j saw typed “fresnel” and i know fresnel as a word already so i think thats what he meant?

@sopapopp 15 дней назад

last word i understood was mattress

@Nein01 28 дней назад

This video is priceless. I finally have a decent understanding of so many sliders and terms from Blender or Unreal that I used to kinda arbitrarily mess around with until it "sorta looked right".

@pikminfreak0011 28 дней назад

Some additional notes and a *slight* tangent for anyone who wants it: The Disney model is also referred to as the Principled model, and this is the name most of the industry seems to use now. The model, specifically the updated BSDF version of it, is used almost everywhere for computer graphics, as Acerola stated. From game engines to modeling and rendering software, everything uses it. But although it can be used for realistic and stylized lighting alike, it's also worth noting that this is far from the only way to make stylized graphics. Many games take what's known as an NPR (Non-Physical Rendering) approach. There's no right or wrong way to do it, but the most common technique is to take the data output of the Lambertian Diffuse and feed it into a gradient map/color ramp, mapping the different light values to artist-controlled colors. This allows for the creation of shading similar to what an artist might draw in 2D, also known as Cel or Toon shading. Since the artist has full control over the color gradient, this can be used to achieve a range of stylistic effects, such as entirely separate colors for highlights, midtones and shadow, or control over how smooth/sharp the transition between light and shadow will be. It's incredibly powerful for its simplicity and has been used in games such as the Legend of Zelda: the Wind Waker, Jet Set Radio Future, and others. The technique has recently gained popularity within the indie game scene, in part due to the heavy focus on physically-based graphics in the AAA space. I've personally always found the technique to be quite fascinating, as with the right effort it produces results which stand out quite a lot from most 3D artwork.

@tanktheta 27 дней назад

I've actually worked with NPR quite a bit, it's got some really good results when mixed with normal map tweaks and layering. Though I do find it's hard to incorporate scene based coloring into these NPR systems, which I've personally struggled with. Since the gradient map/ color ramp dominates the entire thing. Do you have any recommendations for effectively a cel shading type that takes in color data from the scene and blends it with the base color information?

@inv41id 27 дней назад

@@tanktheta Just... have different colour ramps for each scene? I don't exactly see the issue here.

@pikminfreak0011 26 дней назад

@@tanktheta While not necessarily color data from *the whole scene*, I know it is possible to mix the mapped colors (or parts of it, if you don't want *everything* affected) with the color of any relevant scene lights in the final color output. I have not had a chance to experiment much with this myself though, and I know the approach is gonna differ from engine to engine. Games on older systems (like the Gamecube) had to work with a number of limitations in that regard, such as only being affected by one light source at a time. That game also used a variety of color palettes to change the shading on a per-scene basis. Some were picked by the artists, others were generated automatically by mixing two palettes to form a transitional palette (say, between evening and night for instance). Something that specific likely isn't needed with today's tech though.

@MrSkydemon64 28 дней назад

I appreciate how your videos treat me like an inquisitive person, it feels like being in a college lecture where I'm expected to have done further research and tried myself before attending

@XetXetable 28 дней назад

"This looks too simple" "Well, that's your problem" > Proceeds to make equation significantly more complicated because it was, indeed, too simple.

@SomeGuy-ne3yl 28 дней назад

dont need a mattress, but i appreciate a real product being advertised rather than potentially very scummy services.

@F3XT 28 дней назад

I know right, I also for some reason always tend to trust more on bed related products, like it really is outisde of their interests to make your sleep terrible

@boxed_in4357 28 дней назад

@@F3XT Honestly so true. The market for beds is literally defined by quality of sleep. So if your mattress isnt good your business will be gone before you sell anything lol

@Always.Smarter 28 дней назад

you guys don't have beds?

@user-oh6uw9mu9u 26 дней назад

true, I don't trust RU-vidr sponsors even for physical products but it's still hundred times better than fearmongering about how you need to pay monthly for a VPN or you'll get hacked and your computer will explode.

@diamond_tango 25 дней назад

I’d rather get an ad for something I never buy than for nord shadow thunder vpn food prep whatever the f

@goyosoyoyo 28 дней назад

adding a cat cam to the ad was a different kind of diabolical. really took advantage of my gen z ass tic tok brain

@seedmole 28 дней назад

lol at polarization being way too big of a can of worms to even begin to touch on

@Gwehyr 27 дней назад

polarization is so simple though /j the light be wiggling in too many directions. polarization is culling the light that wiggles wrong. the light failed the wiggle test it must be culled.

@tfk_001 27 дней назад

Somehow two videos in a row I got to talk about meteorology. After 2011, WSR-88D radars received an upgrade so that rather than shooting out a single nonpolarized beam, it shoots out two beams perpendicularly polarized (idk the term for this but theyre each polarized and their normal vectors are perpendicular) allowing us to observe so many more products, such as differential reflectivity (where we see how the reflectivity "stretches" vertically or horizontally) which allows us to essentially profile the cross sections of hydrometeors and tell things such as the correlation coefficient between all local hydeometeors

@Crustee0 24 дня назад

@@Gwehyrbut somehow polar filter overlaid at certain angles (i forgot if its 45 or 90) let light wiggle in more direction than if you add up both filter individually 😂

@blitzar8443 20 дней назад

@@Gwehyrthank you 🤣🤣🤣

@DoobooDomo 28 дней назад

Worth pointing out that one of the main benefits of physically-based rendering is so that materials look plausibly the same under many different lighting conditions -- not just the one they were authored in. Also, worth mentioning that GGX was a rediscovery -- it was already known as the Trowbridge-Reitz distribution. GGX is shorter sure (ground glass X?) but it would be nice to fight against the Law of Eponymy once in a while.

@jinxhijinx1768 28 дней назад

no one else notice mans arms doubling in size in just 4 months?

@mikafoxx2717 28 дней назад

He's getting too powerful.. But yeah wow, he's been hitting the gym for sure.

@mr.boloso8296 28 дней назад

Did Acerola start to lift weight? Well, I guess the rendering equation was heavy enough

@NotCerius 28 дней назад

Make your next video on your gym routine my man because that transformation is inspiring.

@Acerola_t 28 дней назад

i just do push pull legs cause i have the freedom to go 6 days a week and track my progress to make sure i'm doing more than last time

@luyandolove 28 дней назад

“Most people are never taught, or come to conceptualize, what math actually is.” 1:06 I feel like this is what surprised me most about your videos as someone who plays video games but knows nothing about making them. I had no idea that you could use math for art and rendering, much less complex math like trigonometry. Like I’m OK at math but I wish my teachers would have showed some of this shit. To me algebra just “more complicated 1+1=2” I had no idea about any of these applications until recently.

@ThisIsTheInternet 28 дней назад

What did you think was involved in 3D graphics?

@insentia8424 28 дней назад

A computer is a computing machine. All it does is compute some way or another. I'm really curious what you thought the computer did to do *anything* in the game at all.

@luyandolove 27 дней назад

@@ThisIsTheInternet Genuinely, I had no clue. This will sound hilarious to you but I really just thought 3D graphics people just created the art, animated it and then dropped it into the game.

@luyandolove 27 дней назад

@@insentia8424 I’ll just take the L and admit I’m pretty technologically illiterate. But thanks to these videos I feel like I understand a little more about math and how computers work.

@volbla 24 дня назад

If you haven't yet, you should check out Inigo Quilez' videos on mathematical art: _"Painting a Character with Maths"_ and _"Painting a Landscape with Maths"._ While he doesn't quite explain how the expressions are projected as an image onto the screen (in those videos anyway), they are beautiful examples of how simple descriptions of shapes can compound into complex artpieces.

@a_d_z_y__ 24 дня назад

Acerola is more than based. Acerola is physically based.

@SX_7 28 дней назад

Honestly most incredible trick to hold watcher's attention throught a sponsored segment I've ever seen

@daydreamteam1366 28 дней назад

It worked...

@PropaneWP 28 дней назад

Acerola's vids are the one exception where I don't skip the sponsor.

@pedroscoponi4905 28 дней назад

100% hit rate with me so far, makes you wonder why other channels don't do it

@proxauthreq 28 дней назад

Who up combining they Blinn-Phong with they Lambertian Diffuse

@LiamOfOzz 28 дней назад

My man Acerola has been hitting the muscular hypertrophy formula

@stevethepocket 27 дней назад

Insider had a video about how every Pixar movie introduced something new that they had to figure out how to render or simulate (well, obviously more than one, but they picked out what they considered the most important or interesting one from each film). For _Incredibles II_ it was fixing the way Helen's new costume reflected light. It was vaguely metallic and had a textured surface simulated using a normal map, but because even the path-tracing system used for movies relies on mipmapping to avoid creating moiré patterns, they found that the normal map was "flattening out" too much when it was further from the camera and messing with the lighting model. In other words, they had found an edge case where the texture of a surface could either be a normal map or microfacets depending on the resolution and distance of the camera. It wasn't explained what they did to fix it, but my guess is that they had to retool the mipmap generation to take all maps into account at once and bake disappearing normal data into the roughness map or something.

@Mittzys 28 дней назад

your computer does all this at least 120,000,000 times a second when playing video games

@gene8512 28 дней назад

Or it would, if I weren't the kind of person who sets graphics to the lowest quality whenever the game lets me

@Mittzys 28 дней назад

@@gene8512 Nope, regardless of your graphics quality, 60(fps) * 2000000(pixels for 1920x1080p) = 120 million. In modern games, this equation is still calculated on low settings per pixel per frame. Just some extra fancy features are cut. At 4k resolution, it's done 497,664,000 times a second at 60fps. That's 500 million times a second.

@connerdingus 28 дней назад

if i had a penny for everytime my computer did this that would be cool i think

@jan_harald 28 дней назад

you say "at least" as if I could run anything more complex than minecraft at 60fps ;_;

@rosiepone 28 дней назад

mine doesn't, it usually throttles at like 45fps

@KillahMate 28 дней назад

33:12 Ironically the screenshot is of the first edition of that book that _does_ discuss ray tracing in a real-time context 😁

@nuumi7813 28 дней назад

woah, mom, there's a new acerola video

@PerMortensen 28 дней назад

Light goes in, light goes out. YOU can't explain that!

@AndrewBrownK 28 дней назад

I feel old

@spartan5261 28 дней назад

As someone who studied graphics (specifically light transport) at the graduate level, I love this video so far. You've definitely explained the rendering equation in a sufficiently intermediate way that I think it would be a great watch for people in 200 level courses

@Dooblecaine 28 дней назад

Your explanation of what mathematics is, was very similar to how it was explained to me in grade school living in the rural south 30+ years ago. I've never heard anyone use that explanation since then, until now, but it has stuck with me.

@idyliawritehorse7509 28 дней назад

I wish someone had explained math to me in high school or college conceptually by breaking down practical examples of what it's supposed to represent. Obviously it doesn't directly help me understand how to solve equations, but it makes me excited to understand more, and gives me something to look forward to when I do try to implement or solve stuff like this. I always liked physics more than math because it felt more grounded and practical, especially because I knew it was important to making video games. Thanks for distilling your understanding into demonstrations and concepts like this. It's extremely refreshing to feel like I can actually grok the basics instead of just feeling dumb and intimidated by the insanely dense and symbolic representations found in research papers and other examples online. Your videos have made me believe I can actually learn the fundamentals graphics programming beyond just simple shaders for my games if I approach the subject with patience.

@monad_tcp 28 дней назад

right ? isn't ? its not like things are invented for a purpose and have a context and practical examples, but no, schools and their stupid curriculum fragmenting everything and putting things in a random order, almost like they're not supposed to make you learn, but just pass some tests.

@alexwilkinsgames 28 дней назад

Acerola, I remember doing a presentation in community college about Pixar and 3D graphics, which lead to my interest in Graphics, which lead to graphic design and future jobs. And I never realized that my interest in graphics has always been there and you have reignited that with your amazing talent to explain complex things and I greatly appreciate you!

@jeremysharpe5467 28 дней назад

This is the greatest video about rendering a spherical ball of poop ever made. I mean... "wet mud".

@pisscvre69 18 дней назад

i thought the same LMAO

@thrasher1462 28 дней назад

kind of nuts that computers can do this millions of times a second

@mach1nka420 28 дней назад

loving the cat in the add, really appeals to my gen z attention span

@nguyenhoangminhtrung2779 27 дней назад

Another gem from Acerola, someone protect this man at all cost, knowledge that I learn OpenGL 8 years ago can't compare to this 35-minute video.

@filiformis 28 дней назад

I enjoy all of this content on physically based rendering, but when are we getting a video on physically cringe rendering?

@stevethepocket 27 дней назад

He already did a video on _Lethal Company._

@airplanes_aren.t_real 28 дней назад

Putting basket in your thumbnail was a bold choice

@sakura_x64 28 дней назад

Brisket*

@darnikrshowtime 28 дней назад

Blanket*

@DracoGalboy 28 дней назад

Who?

@plesiothhitbox873 28 дней назад

Bucket*

@NuclearEmerald 28 дней назад

Feejdisi I literally saw the thumbnail thought “ah, Bridget in the thumbnail, I see you know your target audience” only to click on the video go to the comments and see this XD

@yaaanski 28 дней назад

your gym progress is showing well, alongside the videos that are getting better and better over time. thank you for the content.

@DarkSwordsman 28 дней назад

I swear you make the some of the most valuable RU-vid videos on earth. The density and clarity of your videos is insane.

@theminecraft4202 28 дней назад

wait, it's all PBR? 🔫 always has been

@alexluna6406 27 дней назад

As a material artist this video has been incredible. I've used those values almost everyday and now I understand a bit better what they actually do

@Kwauhn. 24 дня назад

9:38 I really appreciated the legally distinct version of _Never Too Much_ here. Acerola is usually 10/10, so I give this video 11/10.

@C.S.Argudo 27 дней назад

Honestly, these kinds of videos help remind me that those math classes in taking for computer science actually do amount to something I'll be using A LOT on game dev

@Levi1440p 27 дней назад

THE AMOUNT OF EFFORT PUT INTO THIS VIDEO IS IMPOSSIBLE TO BE CALCULATED BY ANY EQUATION. This in itself is infinitely more awesome than any game engine. thank you, acerola!

@importon 28 дней назад

all lights are just emissive surfaces. What now eggheads?

@BrooksMoses 27 дней назад

Egghead reply: Actually some of them are emissive *volumes*. Fluorescent lights aren't, because the visible light comes from the thin layer of phosphors on the surface, and incandescent lights aren't, but flames and neon lights and nixie tubes are very visibly emissive volumes, as are LEDs and the sun if you look closely.

@importon 27 дней назад

@@BrooksMoses Was making a joke, but if we’re digging into it, The filament/flame/etc or “source” no matter how small is an emissive surface, regardless of the object we’re calling a light with all its components including a frosted glass exterior etc

@clonkex 19 дней назад

@@BrooksMoses Probably better if you don't look closely at the sun. Haven't you seen Sunshine?

@BlueGamerBeast 28 дней назад

I've been wondering about how the render equation works for a while now but I never really had the confidence to look further into it because it looked so complicated but this video finally put my mind at ease. Thanks chief rola, you're the best

@bobmeier440 28 дней назад

the sponsor segment zoomer retention cat is peak

@Grstearns 28 дней назад

Omg thank you. For Years I was wondering what the dialectic constant was doing in rendering. I knew it came from the Fresnel equations, but never got a straight answer without having to learn an entire rendering model. But I guess I kinda did that too.

@stoef 22 дня назад

My mind was blown at the part with the distribution functions as I now suddenly know what that setting does on the Blender BSDF. In general so many things that I knew how to use in Blender are now a bit more clear to me. Awesome video as always

@Ochikatzu 19 дней назад

Bro, I found your channel a few weeks ago and I tell you that it had been a long time since I got so excited about the launch of a new video on some channel... yours is truly pure gold. I hope you can continue with this for a long time ❤

@bartolomeus441 28 дней назад

Me: But Mr. Rola, it's the same? Acerola: Always has been. * Proceeds to blinn-phong my head*

@curtismackie3291 28 дней назад

Hi, I know this isn't your area of expertise, but as you are The Algorithm's Chosen Graphics Tech Tuber, I'd like to suggest a video about pixel graphics, shimmering/jittering, and interpolation. Too many indie games with pixel graphics have really terrible pixel shimmering when the screen scrolls, and the solution is incredibly easy.

@r.g.thesecond 28 дней назад

I think aarthificial covered a similar topic in his implementation of scrolling though it is buried somewhere in one of the devlogs. I don't really know the topic; do you have a reference to learn about it?

@preludelight 22 дня назад

this video watched like the entire run of a d&d campaign: started off with becoming the town heroes, finished with killing gods

@GrantMoore3D 28 дней назад

Really great video, I love the way to explained everythign step-by-step with clear demonstration image / videos. Would love a part 2 that expands on the next iteration you alluded to that Disney developed.

@DakkyW 25 дней назад

acerola you're why i'm getting myself back into personal programming projects Love your stuff so damn much

@HereticB 20 дней назад

the sponsor segment... every time he says mattress I hear matrix... 3:56 helix provides premium matrices customized to fit your needs and conviniently shipped to your door, helix's quiz matches you to your ideal matrix

@clonkex 19 дней назад

But matrix is pronounced with a long "a" sound, like grape.

@r.g.thesecond 28 дней назад

Man I LOVE technical presentations by passionate people. I can watch hours and hours of these. Keep 'em coming! Thanks!

@kaique9508 26 дней назад

I swear every acerola video i watch has the "eureka moment" accompanied by a Va11Halla ost theme. Thank you for reminding us how banger that ost is.

@nunomath 25 дней назад

i love to procrastinate math studies by watching the most math based acerola video ever

@eeee69 28 дней назад

This is your best video yet, very comprehensive and concise

@9tales9f 23 дня назад

12:57 I need a renderer that breaks the laws of physics now

@RyanGatts 25 дней назад

I love that someone else is aware of the learn linear algebra manga, thank you acerola

@cinderheart2720 28 дней назад

Been great watching your channel grow in size and scope.

@dodgyarchetype3251 27 дней назад

This video has swiftly answered so many questions I had while taking a course in gamedev. Much appreciated!

@3DWithLairdWT 27 дней назад

I've written full GLTF compliant PBR shaders at a AAA level - and still learned plenty by watching this. Your channel is awesome, and any tech artist / graphics programmer should check out your full lib of videos

@EternalGamingNet 26 дней назад

Such an enlightening video! Thank you for being such a good communicator. 🎉

@camo5553 28 дней назад

platonists are fuming 1:05

@monad_tcp 28 дней назад

math is engineering, if it was pure math, it would be Category Theory, but that's almost useless. what's the predictive power of something that basically says : with enough arrows I can model the entirety of mathematics (never says how many arrows, too many), yeah sure you can, but how is that better than using Linear Algebra or Calculus, it is not.

@Veo87 28 дней назад

"Numbers are abstract objects!"

@explosionspin3422 28 дней назад

Category theory studies the concept of composition, just like group theory studies the idea of symmetry (in fact, groups are a certain kind of category). You might call things like group theory useless, but it is a fundamental part of modern cryptography. Moreover, there's no such thing as a clear divide between pure and applied math. For instance, at one end you can have the kind of linear algebra used in these videos, one step further you might discuss finite dimenssional vector spaces (a bit generalized, but most familiar properties still hold). You might then be curious what happens when the number of dimensions is infinite, and get functional analysis (with things like fourier series being extremely important in a lot of areas). One can go further then and discard all structure but the idea of distance to get metric spaces. Discarding even that and only keeping the idea of "neighbourhoods" lends you the general idea of topological spaces. Mind you, this is but one such slider out of the countless one can find in mathematics. Not only that, but pretty much all the mentioned topics are usually covered at the undergrad level, so just imagine how much deeper the rabbit hole goes! The takeaway is that useful concepts come from all levels of abstraction, be it concrete stuff like using the dot product to compute things, to fourier series and modern cryptography.

@monad_tcp 28 дней назад

@@explosionspin3422 I was not being serious, I knew someone would get triggered. the irony is when mathematicians talk about excessive abstractions from other fields of mathematics. I'm kind of an architect astronaut for abstractions, there's no limits for that

@drdca8263 27 дней назад

@@monad_tcpUseful if you want to talk about anyonic quasiparticles

@danielflorez1842 26 дней назад

WOW this video was really eye opening, learing what lambert, blinn or phong even mean was pretty cool! I feel like im learning more with your videos than what they teach at school

@Hazzel31337 26 дней назад

thats a really good video, with tons of useful information which helps me to better understand how rendering works, thanks so much

@kerrermanisNL 25 дней назад

Damn broski, that was insane. You've really encouraged me to increase my math knowledge and I actually understood like 1% of the video! Keep it up, these videos are a gold mine of knowledge. And I'm seriously impressed you managed to implement all this stuff

@triplexx 28 дней назад

This video is insane, great work. Definitely going to rewatch it multiple times.

@arthurprediger4054 27 дней назад

What an incredible and well structured piece you put together man, the time spent in doing this was very worth, thanks for this.

@ultramadscientist 28 дней назад

new acerola vid!!! Love your explanation of the rendering equation

@tkasch 28 дней назад

Spent yesterday digging into the Unity's PBR Lit shader lighting and now you've dropped your video. Thanks, perfect timing and the great video as usual

@rafagamedev3606 28 дней назад

GOATED video, will keep coming back to this to refresh my knowledge on the rendering equation and BRDF's. Keep it up acerola!

@DragoniteSpam 23 дня назад

"math is a cartoon of reality" is something i need on a tee shirt

@swisha_223 21 день назад

All of your videos are really cool and well made, this one included. This is really interesting, regardless of whether or not I can “actually use” the information presented. I like the depth you go into on these subjects

@ryanallen2001 28 дней назад

This is an incredibly information-dense video. Very impressive! I learned a whole lot!

@GianlucaTruda 26 дней назад

Excellent video! I built my own realtime raytracer a few weeks ago and this explanation complemented that beautifully to connect a bunch of aspects and next features! Thanks

@BurnedSoap 28 дней назад

I'm always impressed by how well you can teach topics that would normally make my eyes glaze over

@Fireblazer777 27 дней назад

Thanks a lot for making this video! It really helped me digest what I've been reading in Physically Based Rendering: From Theory to Implementation.

@erikm9768 25 дней назад

Great video Acerola. Went through almost the whole rendering equation , maybe make a video about light transport next!

@Gnomable 26 дней назад

Your videos are such a gold mine for graphics knowledge. It's interesting to know most of the digital light we see is using the same handful of lighting models.

@lck0ut348 28 дней назад

I know nothing in regards to shader code, but each video you make makes me want to learn more than the last

@Sammysapphira 26 дней назад

Hell will freeze over the day acerola uses a red arrow without the png grid

@Jadinass 27 дней назад

So when they called it physics based rendering what they meant is that it's still derived from the same definitely not physically accurate rendering equation but through clever use of real life parameters it looks really good.

@Wishbonejoe 28 дней назад

I've been binging these videos when I am winding down for the day, big thanks dr rolla

@scrappedmetal 28 дней назад

this was really interesting!! i'd love to see you tackle more topics relating to computer graphics for film, if that's something you're interested in. i feel like lighting and texturing are really hot topics when it comes to 3d animated films at the moment... even if people don't fully realize that. it kind of feels like the basis for a lot of the more successful attempts at unique stylization within the industry as of late, at least from my understanding of things. even if that isn't something you're necessarily wanting to look into, its always fun to see the subject of your videos branch out a bit!