The lecturer resembles Louis CK so much I had to mention this :) And second thing - these lectures are awesome, don't listen to other comments and check for yourself. First lecture might be of average quality, but I am on my 7th now, and can't stop :) The guy is really good and you can see his passion for the subject in his eyes, and it's contagious.
At 34:00, a listener might understand that a necessary and sufficient condition to have a point P inside the triangle P1P2P3, is that the coefficients alpha1,alpha2 and alpha3 values must add up to 1, I think in addition to that, they must all be positive, Otherwise the point P is just on the plane defined by P1, P2, and P3 and it can be outside the triangle.
I'm in my first semester and I have a research to do about how can linear systems apply to engineering, I am studying computer engineering right now and I am researching about computer graphics, thank you for letting this class available
One thing which I think he wanted to mention while teaching about locating a point inside the triangle is that apart from the coefficients of the three reference points being affine ( which means that they add to one), for a point to be inside the triangle the coefficients have to be positive and less than or equal to 1. Same goes for any point inside a quadrilateral defined by four points in the same plane. All the affine coefficients have to be positive, and they have to be less than or equal to one. That may easily be understood by looking at (1-t)^2 and t^2, but its less clear when you have alphas in the equation
46:31 so that’s it? You create a matrix that allows you take the points of the screen, and display the points of the rendered object at it’s appropriate “distance”?
I know what an origin, basis and vector is, but what is a "point"? And I never got what "t" referred to either. Meh, I'm probably just too thick for this.
Hi Joy, i really appreciate your effort of explaining these graphics concept , what i need to know is how to implement these theoretical concept in c and c++ . I will really thankful to you if you can suggest me where can i find these concept of implementation in c and c++. Thank You
It's pretty famous book for Computer Graphics called "Introduction to computer graphics by Donald Hearn and Pauline Baker" aka (Hearn and Baker) there are two versions as far as i know. one is C VERSION and one is USING OPENGL. i hope this helps!
So this is what college is like eh? Funny thing is i've taught myself to code in python and c# myself online, and i've followed countless tutorials to make 2d graphics and 3d engines. I just don't understand the trasformation and rotation math, 4x4 matrices and stuff.
JCB don't worry, even if you knew math, it would be pointless to make any code out of it, some person has probably already done it and it's 100 times better than your code.
If you have a college campus anywhere near you, you could always track down a professor and ask a question or two. You'd be suprised how many lecturers are really cool about talking to a given person interested in their field. Also lol @ 30:35. He didn't believe his mistake until he heard it in a mans voice. （ ´∀`）
JCB That's awesome, I taught myself to code as well, although I learned the 'good' practices at uni. You might want to look up (if you don't already know) Khanacademy, he teaches a lot of stuff but I think his Calculus and Linear Algebra videos could help you a lot, mainly the Linear Algebra stuff about vectors and matrices.
"I just don't understand the trasformation and rotation math, 4x4 matrices and stuff." - So basically everything about graphics engines. (You know, transformations are the core of how every graphics engine works) And you don't sound like someone who is able to properly code in python and c# either.
And again the thing I hate in these kinds of university lectures. Heres a formula, Ill take few more formulas our of this one, but I will never demonstrate anything practically with numbers and real examples. Why? If you havent spent years and years calculating these things your mind cant work abstractly like that. You need examples. You need to see how these things actually work and the result they produce. Ns, Ts... C'mon you need to test and realize how something works before you make it generic and abstract.
this entire lecture was made for university students who have spent the last 2 years of their life doing these maths. it wasn't made for the person self teaching themselves computer graphics. just learn the math you need as you move along and you'll be fine.
Jomoko No I mean generally. Not that this lecture is bad. Exactly the opposite its very nice. My problem is mainly with the way education works. When you teach stuff the students have to memorize and use without even understanding them is very... how to say it. For the sake of doing your work for today, but not for the sake of people really understanding.
I totally agree what Sky Lord Panglot said. I am a third year university student and I am taking computer graphics course, however, during the lecture which should be 90 mins long, my professor always take 40 - 50 mins to go through his powerpoint and just simply explains what is going on there, and he never give examples with the math is happening, so I have to do research on the internet and study by myself, and that's why you can see me here. My point is that if we can learn things by ourselves, then why should we go to class anyway? Or, if there is a simply way to understand the material, then why should we take it in a difficult way?
Vector Space- 20:48
Vector Frame- 23:45
Affine Combination- 28:51
Affine Space- 28:58
Barycentric coordinates- 35:01
Bernstein Polynomials- 38:35
Conversion of Bernstein Polynomials to Matrix- 42:57
Lecture starts at 20:48
thank!
Henrique Netto Really appreciated
thnx brother
bless you
"alright what's a vector space?"
Amazing.. the kind of content that’s available for free. Absolutely. Amazing.
And he also doesn't recommend a book which means students are saving money 🤗
The lecturer resembles Louis CK so much I had to mention this :) And second thing - these lectures are awesome, don't listen to other comments and check for yourself. First lecture might be of average quality, but I am on my 7th now, and can't stop :) The guy is really good and you can see his passion for the subject in his eyes, and it's contagious.
Thanks Will surely try to watch everything
He really doesn't look like Louis CK... Though he does sound like him. Great series
He looks like what Louis CK would look like if he had more hair and looked completely different. Also he has pants on.
Textbooks:
Angel, Interactive Computer Graphics A Top Down Approach With Open GL, Addison- Wesley, 2005
At 34:00, a listener might understand that a necessary and sufficient condition to have a point P inside the triangle P1P2P3, is that the coefficients alpha1,alpha2 and alpha3 values must add up to 1, I think in addition to that, they must all be positive, Otherwise the point P is just on the plane defined by P1, P2, and P3 and it can be outside the triangle.
He is Like a magician.. Playing very cool with algebra and relating it to geometry.. Wow.. Nice :-D
7 y.o. video. Still very nelightening. Amazing to understand how computer graphics were generated and the mathematical concept behind it
I'm in my first semester and I have a research to do about how can linear systems apply to engineering, I am studying computer engineering right now and I am researching about computer graphics, thank you for letting this class available
One thing which I think he wanted to mention while teaching about locating a point inside the triangle is that apart from the coefficients of the three reference points being affine ( which means that they add to one), for a point to be inside the triangle the coefficients have to be positive and less than or equal to 1. Same goes for any point inside a quadrilateral defined by four points in the same plane. All the affine coefficients have to be positive, and they have to be less than or equal to one.
That may easily be understood by looking at (1-t)^2 and t^2, but its less clear when you have alphas in the equation
Thanks for your explanations!It's pretty concise
Discusses computer graphics on a chalk board , I like it
Holy shit I gotta take this class for my photography (ish) degree and the amount of complexity in 10 mins of this lecture has fried my brain already
Was linear algebra a prereq?
wooow... I had never had anyone explain the concept of barycentric coordinates like Ken. Thank you
I love the way he lectures. Breaking down what seems to be like a mountain during my days in s school.😍😘🤗
"we need to figure out how things move in 3d space"
*camera slowly moves him back in frame*
I don't know why I thought that was hilarious lol
Thank you, this was very helpful!
Matias Lavik no it was not
+mlavik1 he didnt understand it probably. :P
what does adding 2 points together even mean i don't get it.. affine space stuff made sense though kinda
33:11 that was my thought exactly.
46:31 so that’s it? You create a matrix that allows you take the points of the screen, and display the points of the rendered object at it’s appropriate “distance”?
Where can I find the lecture notes, assignments and/or project(s) for this course?
Awesome , Thanks 😍
Can we see the assignments by any Chance?
Great Lecture. I like Professor Ken Joy :)
This level of explanation. I would not pay a penny..
I am wondering if I should take this course next quarter
2009 low resolution video but amazing content.
the site mentioned for course aint accessible for people outside uni right? if you were able to access, can someone post the link here.
thanks
I thought thats called bezier curves.
is there a link to the assignments? the address on the board denies access
can we access his assignment website, tried but not accessible!
Loved it.
32:00 "And I get to pee."
Thank You 감사합니다
Where do I get course documents + QT programs? The link mentioned in the video is not working.
Is there any recitations availble for this course?
Words of wisdom
I know what an origin, basis and vector is, but what is a "point"? And I never got what "t" referred to either. Meh, I'm probably just too thick for this.
I finally understand affine space
Hi Joy, i really appreciate your effort of explaining these graphics concept , what i need to know is how to implement these theoretical concept in c and c++ . I will really thankful to you if you can suggest me where can i find these concept of implementation in c and c++.
Thank You
I love how you started with "Hi Joy"
Who's watching this video in 2022 thank you professor
Can anyone send the playlist link of all the lectures in this course, please
When I go to the website I get a 404 error. Is the material still available?
Thanks
Damn, that was badass
Good
41:53 What did the first Toy Story use instead of subdivision surfaces?
smoothed edges
thank you so much !!
Is QT quicktime ?
:D
Thank you sir :)
his intonation sometimes reminds of ck louis:)
good
"affine things are cool"
indeed
which book he is talking about,i mean name of the book and author of the book?
It's pretty famous book for Computer Graphics called "Introduction to computer graphics by Donald Hearn and Pauline Baker" aka (Hearn and Baker)
there are two versions as far as i know. one is C VERSION and one is USING OPENGL.
i hope this helps!
Amu 😉
Where is the library?
Ans: Google
🙌
i gotta P after this
George checken??
i think they have dropped off the ecs175
i thought vector was a cereal... im kidding
Me: *thinking why im here*
So this is what college is like eh? Funny thing is i've taught myself to code in python and c# myself online, and i've followed countless tutorials to make 2d graphics and 3d engines. I just don't understand the trasformation and rotation math, 4x4 matrices and stuff.
JCB don't worry, even if you knew math, it would be pointless to make any code out of it, some person has probably already done it and it's 100 times better than your code.
If you have a college campus anywhere near you, you could always track down a professor and ask a question or two. You'd be suprised how many lecturers are really cool about talking to a given person interested in their field.
Also lol @ 30:35. He didn't believe his mistake until he heard it in a mans voice. （ ´∀`）
JCB That's awesome, I taught myself to code as well, although I learned the 'good' practices at uni. You might want to look up (if you don't already know) Khanacademy, he teaches a lot of stuff but I think his Calculus and Linear Algebra videos could help you a lot, mainly the Linear Algebra stuff about vectors and matrices.
"I just don't understand the trasformation and rotation math, 4x4 matrices and stuff." - So basically everything about graphics engines. (You know, transformations are the core of how every graphics engine works)
And you don't sound like someone who is able to properly code in python and c# either.
+alexmac101 she was not only asking about the mistake but also if the vectors and points are the same thing.
And again the thing I hate in these kinds of university lectures. Heres a formula, Ill take few more formulas our of this one, but I will never demonstrate anything practically with numbers and real examples. Why? If you havent spent years and years calculating these things your mind cant work abstractly like that. You need examples. You need to see how these things actually work and the result they produce. Ns, Ts... C'mon you need to test and realize how something works before you make it generic and abstract.
this entire lecture was made for university students who have spent the last 2 years of their life doing these maths. it wasn't made for the person self teaching themselves computer graphics. just learn the math you need as you move along and you'll be fine.
Jomoko No I mean generally. Not that this lecture is bad. Exactly the opposite its very nice. My problem is mainly with the way education works. When you teach stuff the students have to memorize and use without even understanding them is very... how to say it. For the sake of doing your work for today, but not for the sake of people really understanding.
MrBrN197 School math with a little bit of calculus on top.
I totally agree what Sky Lord Panglot said. I am a third year university student and I am taking computer graphics course, however, during the lecture which should be 90 mins long, my professor always take 40 - 50 mins to go through his powerpoint and just simply explains what is going on there, and he never give examples with the math is happening, so I have to do research on the internet and study by myself, and that's why you can see me here. My point is that if we can learn things by ourselves, then why should we go to class anyway? Or, if there is a simply way to understand the material, then why should we take it in a difficult way?
The math part is easy and you should know it. Or go out and study it he a graphics teacher not math
fake af
da fuq?