Matrix Multiplication for 3D Rendering

[@SirajRaval]

Matrix multiplication is a crucial concept in deep learning. Dan is a hero for making a fun video on this, amazing work!

[@TheCodingTrain]

Thank you Siraj!!

[@kaustubhmurumkar2670]

wow

[@tshichan]

wow new info, ii thought it was in opengl only

[@rushikeshdarge6115]

Plz!!! make a video on how to use google collab complete tutorial dataset how to upload a dataset how to convert that data into training set and test set how to use that data and run neural network on google collab GPU and as always great content THANK YOU!!! ❤️

[@mathewo9209]

I haven't watched this yet, but I'm very happy that you've decided to do this video. Because I know I'm going to learn.

[@Cyberfoxxy]

normally this is performed with less laughing and more weeping

[@za_ozero]

This guy is smart, humble and a bit too shy. I like him overall and he is doing a beautiful job!

[@mr_hexo]

thankyou. SO MUCH. I have been trying to make 3d inverse kinematics and I just couldn't figure out how to do the 3d rotation matrix. But this video and your one about rotation and projection FINALLY MADE ME UNDERSTAND!!! Thanks so much!

[@Simon000777]

If anybody's interested in learning more about linear algebra, Gilbert Strang's lectures at MIT are all on youtube!

[@eugenetswong]

FEEDBACK 1:06 This is the kind of mistake and correction that is worth leaving in the video. It tells us a bit about what we can do with a new concept. If the video becomes too professional and sanitized, then we tend to lose a lot information. Thank you so much, Mr. Train!

[@lucaspetersen5074]

Dude, you totally read my mind... I was studying for linear algebra exams and thinking of how to do this in Python.

[@luiza4142]

Lucas Carrijo me too, i try create a n×n determinat but i was failed

[@lucaspetersen5074]

Tbm falhei kkk. Pelo jeito matrizes vão ter que ficar só nas aulas de engenharia por enquanto... No python não tá rolando

[@luiza4142]

Mano hj vou tentar fazer determinante por expansão de laplace e que Deus me ajude kkkk

[@cicciobombo7496]

luiz alberto i made a matrix and determinant toy library in c++, it was complicated but i enjoyed it

[@100Palavr]

Esses brs estão por toda a parte o/

[@DogwafflDan]

Thanks for the review on matrix math! Gave me the incentive to get my C++ matrix class working and some direct2d.

[@liquidexw]

well, this tutorial is going to be very useful for me. now I'll finally know how to do image processing with convolution! thanks, Dan!

[@vjself]

The bell makes this video all the better.

[@monomere]

OMG thanks! I'm using this video for my own game engine sort of thing

[@SweetChuckPi]

Matrix Math is one of those things where I find it extremely helpful to more descriptively name my iterators. ie ithColOfA jthRowOfA etc...

[@mikee.]

Very interesting, wanted to get into matrices and 3d rendering a while back, going to officially start now! :P

[@broadcastbrian2560]

Can't wait for the upcoming 3D projection & rotation videos! Thank you.

[@ERsandipanRoyThakur]

Its simply awesome . Please carry onnnnnnnnnnñnnnnñ this type for minimum 29 times

[@killereks]

Yes. Was waiting for this forever. I love you

[@alexfish7792]

13:09 was the best part!

[@Invalid571]

5:15 to skip matrix multiplication intro and go to actual coding.

[@motbus3]

Ow yeah! I was just waiting for that

[@kevnar]

"Through the magic of the linking of the things." Only in Coding Train world is this a legitimate thought.

[@nassimamrane5052]

Really interesting i was exactly looking for this type of video thx i dont understood how that work now i think it 'll be more clear for me that is the last thing i have to see in programation. Even if i wanted this video in fr i dont see any difference its so very well explicated

[@cocadzp1257]

17:52 He spoke french

[@figfox2425]

"Déja-vu", "voila", "je ne sais quoi" etc... French expression english speakers use sometimes.

[@deltakid0]

It's actually 17:50

[@o_master362]

how do you get PVectors in java? I cant figure out how to get them.

[@jcponcemath]

You are a genius! Great video... Loved the reference about Sisyphus... hahahaha :)

[@kineticsquared]

Loved that reference as well. Now I will think of it on some of those days when it seems I am just spinning my wheels.

[@DogwafflDan]

Can't wait to watch this!

[@igorgrischenko6518]

Так радуется, будто уже в готовом проекте заработало)

[@ozzydapg]

Great you back to #processing language!!! I love that!

[@ethandavidson3395]

When is the p5.js version of the 4d to 3d repository going to be made available? I am so curious about it.

[@atrumluminarium]

How hard would it be to implement matrix multiplication with WebGL? Kinda how TensorflowJS does

[@d_vibe-swe]

Will this do the same as applyMatrix() ? Was that function written after this video?

[@joaquimjesus6134]

ok.. but i miss some information: 1 - you use only 0's and 1's on projection.. they must be padron or i must change them? 2 - you take off the 'Z', but it's used? i'm confused.. sorry

[@ccuuttww]

be more specific this topic is about linear transformation Linear algebra not only for 3D rendering it is very very useful in machine learning data processing encrypting and it can also part of calculus problem it is a 100% must learn topic

[@TheCodingTrain]

Thanks for the comment!

[@westonkomar3767]

Very helpful, thank you!

[@jeroenmulder1400]

Is there anywhere I can find the source code I am trying to follow what is going on but I keep on getting an error can't manage to fix it :(

[@DustinGunnells]

#Genius! You are Awesome! I share your channel with my friends family and my preteen son.

[@TheCodingTrain]

Thank you!

[@Nezteb]

I wonder if you'll use BabylonJS, ThreeJS, or something less abstracted. I'm excited to find out! :D

[@victorwei6053]

Can you do a video on GPU accelerated matrix multiplication? That would be greatly appreciated!

[@int16_t]

Use OpenCL in C?

[@Wunderwaffe9828]

ENTER THE MATRIX!

[@MohamedFofanah-s9p]

What is mind maps in somry

[@Zakdaman97]

Why was this done in processing and not p5.js? I would really appreciate help in that regard.

[@TheCodingTrain]

I'll do a port for p5.js, you can file an issue at github.com/CodingTrain/website. Also I have a whole series on Matrix math in JS already! kzbin.info/www/bejne/q4TdeJecmbSifZo

[@Zakdaman97]

@@TheCodingTrain bit late but, thankyou!

[@silvertakana3932]

When my last brain cell still trying to hang on to this video

[@annevandalej496]

Yes!!! Also waiting for more ml5 stuff =:D

[@etiennewille5661]

Whats her notebook?

[@saad-ul4mr]

you work on js , how can I translate it to python

[@mikee.]

This is processing which is Java based :)

[@mikee.]

Also you can use numoy's matmul function, docs.scipy.org/doc/numpy/reference/generated/numpy.matmul.html

[@the9tailsupersaiyan]

Mikee you can also download a python package for processing so that you can code in the processing ide with the python language.

[@jumpierwolf]

Instead of just copying the code, understand it and then write it in Python

[@leeqjqjww2014]

How can i with P5.Js got a joob?or just a small money?

[@sarangs8441]

When is the MNIST coding challenge coming?

[@figfox2425]

has been done already, no ?

[@sarangs8441]

@@figfox2425 it is in a live stream but has lot of mistakes as per the comments which Dan himself verified

[@kaikoda8709]

What computer Language is he typing with? Is this only for Mac?

[@liquidexw]

this is processing, a java-based programming environment. the website is processing.org, it is available for multiple platforms including windows 32/64, macOS, linux 32/64/armhf

[@theofficialjizzy]

I dont know how this is going to help to rob the Spanish bank Professor...

[@Holobrine]

22:10 First to second? No. It’s second to third.

[@syonukr]

Writing “colums” saves 1 byte

[@amichow]

Has anyone else noticed that he wrote 2x1 Instead of 3x1

[@TheGamingDinosaurRoblox]

very cool video but pls get a standing desk or laptop stand so you don’t have to look down to your laptop its bad for your neck

[@AleksanderFimreite]

I'm slightly triggered that you didn't stay consistant and name your function matlog. But to be fair, I think that if you are someone capable of explaining what goes on while in a 3-layer for-loop you get to do what ever you want ^^

[@orangasli2943]

I think that creating a class is much better.. Better to manage and easier to write And visualize than using 2d array.. If for example the matrix becomes 3 by 3 matrix Suddenly you need 3d array and so on..and new function

[@salmanmuhammad8159]

I wish you were my teacher

[@thewelder3538]

Wow, watching this was like watching a blind man looking at a porno. A triple nested loop that you could do in a single loop, or not even use a loop at all and do it in a single operation. A classic case of... "how can you tell that I'm a Java Script coder?" No one will ever learn how to do proper matrix multiplications watching this.

[@panjak323]

What is this language ?

[@nolanbuval6295]

Ok, my brain cannot do that

[@Holobrine]

19:18 Not lazy enough. return { {v.x}, {v.y}, {v.z} };

[@franeklubi]

Nice!

[@beaverjoe9171]

OMG ITS JAVA

[@callimero2731]

Why did you choose Java?, why not Python 🤔

[@oshotz]

DRagunov DZ It’s the language that he mainly uses (with the exception of JS, which he uses the most).

[@jumpierwolf]

Same reason why anyone would use python, it's preference.

[@engdoretto]

Why java instead of javascript?

[@rraf666]

wow

[@culan_SCP]

S I S I P H U S

[@homexdYtb]

nice

[@AE-yr6mo]

Similar teaching style to Miss Chokesondick.

[@danielesquivel3155]

jajajajaj me cago de risa eso que hablo español

[@PandoraMakesGames]

Hi, I make AI videos too now (Big fan of Dan)

[@stanger963]

Daporan Hi

[@PandoraMakesGames]

Hey! What's up

[@benjamindragon598]

MOAR JAvAva vIdeOEsR!1!!!

[@trol9880]

Second