Mtg 3/26: Tue-14-Jan-2025

Outline for Today

Monte Carlo

Administration

Today

For Next Meeting

Wiki

Link to the UR Courses wiki page for this meeting

Media

Transcript

Audio Transcript

  • Posting the transcript from meeting two, but It's there
  • now.
  • So any existential crises that we need to talk about currently
  • getting pbrt installed seems to be the common existential
  • crisis. I was able to just get it installed on my computer, but
  • I'm fighting with it. Currently.
  • I can't download it for something. I don't get it. I
  • need to restart my computer. I'm not allowed to make a C file.
  • Okay, so I'm working on
  • the last two hours trying to find what they're trying
  • to do. Okay? So I noticed you responded No to being able to
  • get it to run on your computer.
  • So probably a key to painter.
  • So we'll talk. We will eventually, but just print this
  • minute now. Yeah, okay. Are
  • you okay? All right.
  • Okay, actually,
  • so I I realized the problem with the attendance link, because I
  • didn't update my meta information for the class. So we
  • can't take your attendance. Yeah, you can take attendance,
  • but his website before use the you are courses link
  • if you go to upcoming events or actually class calendar for
  • today, let's see that. Yeah, that includes attendance here,
  • so you can go to the activity and do attendance.
  • Yeah, so
  • I was going to make
  • suggestion here at the end,
  • there's import or export calendars. I
  • so you can
  • it's like the meetings I cs file that I created that you can
  • update, you can download an i cs file for all the class events.
  • So in typical frustrating passion, sometimes here Custom
  • Range isn't custom. It's set to be
  • it's the duration of the course,
  • anyway, so I think it's January 9 to January 14. Yes, not
  • September 1, but January 9 to January 14 of 26 it's also a
  • it's also, it's in the format of D month here, yeah, no word use.
  • So I'm just as a way to make things easier to access
  • so you're on top of things like quizzes and so forth. You might
  • consider downloading the calendar from your courses.
  • So it's interesting, it says events related to courses. It
  • doesn't say events related to this course. I
  • or you could just say all events,
  • yes, we will need some work, and I spent I
  • a more time then I would like to acknowledge creating the quizzes
  • before meetings.
  • And if you remember from 428, we've talked about keystroke
  • level models and
  • click, click, click, click, click, click, click, click,
  • click, click,
  • so it's not very efficient.
  • So I have to do that many clicks for 2625 or 24 quizzes. So you
  • can tell me if I've got them right, or there's some
  • tweaks I need to make, but I think they're all set up
  • properly. Knock on wood.
  • Okay, so that's, that's the way to get the attendance.
  • And other things related to the calendar. I
  • I'm
  • not sure. So your name is there because of the wiki scheduler.
  • Okay? I
  • that'd be
  • perfect. Let's see what else. Okay, so the quiz closed at 1pm
  • i
  • Okay.
  • I so let's, before we get into some other things, let's,
  • well, let's talk about Wiki pages first,
  • and then we'll
  • talk about building PBR, key, v4
  • Then some new things.
  • So I'm going to ask you to
  • look, start looking at chapter two,
  • see if I flip this to the next quiz. And I did so
  • three quizzes out of 24 are set up correctly.
  • Okay, I
  • know everyone's really impressed with that. I
  • Okay, so here's the first meeting the wiki.
  • I tried to get rid of this description,
  • but I was not successful, so maybe,
  • with your permission, I'll move it so that doesn't come up in
  • the the
  • top of every screen.
  • Is this helpful to have that description there? Okay, I'll
  • leave it if
  • so I guess there are a few more opportunities here for links. I
  • so thanks to Laura who started the ball rolling here with
  • contributions to the wiki page. I
  • I was curious about pbrt and its connection with Maya. I think I
  • made that note
  • personally, and I think I just threw it off there because it
  • was in my notes. Okay,
  • so maybe if there's a link to go with that, I
  • Yeah,
  • okay, so
  • there are 14 people in class.
  • There are 24 meetings. So
  • if everyone does two, that's a little bit of overlap. I
  • it.
  • So I would invite you to sign up for that,
  • because I will,
  • I will make some notes and count it as part of the participation
  • mark. I'll give you some feedback about
  • the entries and the
  • so on.
  • So here's the manual, Moodle manual for the wiki activity and
  • uh.
  • Something to note, when you're doing the wiki and you're trying
  • to type stuff in the top left hand corner of the area that you
  • can type in, there's an arrow pointing down. Click that and
  • it'll expand options.
  • Yes, that's true for any editor. Yeah. Sorry you
  • that's
  • me. So here's a description of
  • of creating the first page. Well, the first page been
  • created. So to add new pages, you enclose things in double
  • brackets.
  • So that's the arrow I'm talking on the laptop left corner there,
  • yes, because I use the code part of it to do something rather
  • than doing it directly.
  • So you can add links, so it's HTML format, so you can add
  • links by clicking on the
  • on the link button and then filling it in.
  • So,
  • yeah, if you want to,
  • if you want to add
  • some code, you can,
  • I
  • so to navigate between pages, you have to create your own
  • hyperlinks. I
  • That's
  • just fancy jazz.
  • Pages. Okay,
  • so there's the information for the wiki.
  • Let's go back to the wiki page. I'm
  • and let's edit this.
  • So here's the arrow the Laura was talking about. So you get
  • lots more things. And then I was popping back and forth using the
  • second to last one in the last room, yeah. So this is the code
  • You Do.
  • That should work.
  • Okay, so I was thinking of putting different text into the
  • link, but that would not let Me match The page I
  • It's the link in there, so
  • if you click on it, like stick Your mouse into it, then hit the
  • break link, do?
  • And
  • then just there's a break Link button straight there. I should
  • fix it.
  • Okay, so
  • wikis in Moodle are a little different, but so the main thing
  • is
  • referencing pages with the name of the page inside the two
  • brackets. And then if you have regular links to include, you
  • can use the
  • link button in the editor,
  • It's mostly HTML, except for The wiki page references. I
  • so I started
  • a PBR key page.
  • And so an interesting thing that comes up, if you put headings,
  • this is a medium heading, you get a Table of Contents.
  • So I did a Google search. I
  • so this six minute video, so you say we watch this and see if it
  • gives us any
  • how many ads are we going to have to go through? Do you think
  • I
  • think it's an ad? Yeah.
  • So idea
  • isn't set up here.
  • Good to show you how
  • to install and start using the pbrt project. We're going to
  • work with the version number three, and we are going to do
  • the installation on Windows. So first of all, you have to go to
  • the repository page. I'm going to put the link down in the
  • description of the video. Then we go down here. We copy this
  • command, and I'm going to clone it on my desktop. You can clone
  • it wherever you want. And since I'm on Windows, remove sign
  • so it is cloning. Once it's finished, we are going to open
  • the project, and we're going to create a new folder, we're
  • going to name the build for now, and we're going to download the
  • rest of the things that we need. So we need Python. You just have
  • to go here, and you can download the most recent version. And you
  • need a version three. That's something to have in mind. I'm
  • not going to install it because I already have it. And also, we
  • need 20 founders download C make.
  • So we go to this link right here. It's going to be in the
  • description as well, and we click on this, and we are going
  • to sell C make. I
  • once in its own auto we are going to click so next except
  • the terms,
  • let's add C make to the CS path for all users, and watch this
  • video ahead of time, so I'm curious what Python too.
  • Okay, it is a song, and we're going to continue with Visual
  • Studio. We're going to download the community version because we
  • don't need
  • the other versions, just the free one, and we're going to
  • install it. Okay, we're going to click on next,
  • okay, so now we are here, and let's solve just what we need.
  • We don't need Asher. We don't need this, this, I'm not that
  • sure, so I'm going to leave it there. But what we need is C
  • Plus Plus.
  • Actually, let's remove that. Net is not necessary. Do
  • and I think that's, yeah, what we most need is C Plus Plus
  • compilers. So let's do it like that, and here in optional,
  • let's see what we can delete this one. We don't need it.
  • Let's see if we can make this smaller. The thing we don't need
  • is, okay,
  • I think that's just
  • it. So let's install it. That's going to take a while. So now we
  • have it has finished, so we're going to test it 2022
  • so there is let's continue with our code. Okay, so now we are
  • there. I'm going to post this,
  • and now I want to check something in help about
  • Microsoft Visual Studio,
  • and what I want to see is the version, so it's 17, okay, so
  • now we are going to go back to the build, and
  • in the CMD console we on the folder build. We are going to
  • use this command, okay, now that it's finished, we are going to
  • run the following command. Okay, now that it's finished, we have
  • to go to the src folder. Sorry, the release one, and here there
  • is going to be that executable. So now let's see how we can use
  • this project. So now, in order to use it, we need to open a
  • command prompt on the release folder, and we're going to type
  • the following command.
  • So it's going to be using the pbrt that XC, and we have to
  • give him a scene that is a file describing the scene. So I'm
  • using the one that is by default in the project. Is this one
  • right here. Scenes and killer resemble there is there. And
  • let's go back to build so we can see the image being generated.
  • Yeah,
  • okay, so we enter and now it's rendering. Once it finishes, you
  • will see the image here, and you need to open it. I'm using an
  • app special to open it, and it's the file viewer clues. I found
  • it on the Microsoft Store, and it's free, so I'm using it. And
  • here I can see the image now, and there it is. So guys, thanks
  • for watching. Please Subscribe, and I hope that the video helps
  • you give us a like, and I will try to record the video in a few
  • days in order to install this project on Linux. So thanks for
  • watching, and bye. In less than 24 hours, you will have $1,000
  • in your account, and then $1,000 daily for the rest of your
  • project.
  • Chain
  • reaction,
  • so my question is, how did Google think that was the best
  • video to show anyone? Get anything out of that video?
  • You did
  • lots of stuff now, because I'm doing a wiki this week. Okay,
  • well, Oh, I thought I was like You did the first year.
  • Wait, okay, so I'm
  • so which platforms are you targeting? Who's doing Mac?
  • There's one.
  • Anyone else with a Mac? I have a MAC
  • MAC. Have you had success?
  • Have you tried? And what issues are coming up. So,
  • work in progress, anything? Okay?
  • So there's an issue of earning C make or building it in there
  • once it's it.
  • It wants you to create a separate build directory and
  • then
  • go inside And then execute the commands I
  • let's see make I
  • pseudo might be useful is that a Windows thing as well.
  • Pseudo?
  • Unless you use the subsystem, but that's different.
  • You
  • okay, so
  • if the work in progress doesn't progress,
  • post some stuff to the class discussion or the wiki, and so
  • we can resolve it.
  • So I'm making some progress on getting the software installed
  • in the labs,
  • but there's no binary installer for PBR TV four, so I need to
  • get the build instruction set up for Windows 10 or 11,
  • so they can build and test it and put it on to some of the lab
  • computers for You. Yeah, so when you were demonstrating it in
  • class, what were you using to show the file? I noticed you
  • used file viewer plus, but it looked different than the one
  • you were Using, yeah. So on the GitHub page, it talks about,
  • so there is a Binary installer.
  • I
  • so there's a binary installer for it, and On the Mac, it's
  • available through home brew. Home
  • Brew,
  • okay, anyone for Linux?
  • One Linux, okay, do windows.
  • So Windows, I
  • I'm seeing people, okay, people who haven't put their hands up.
  • What system are you targeting for building pbrt? Windows.
  • Windows. Okay,
  • let's see.
  • I think we'll say 11 for
  • that. And windows, 10 or 11, we're 11.
  • Okay, so what's the problem you're having with downloading?
  • I have no idea why, but it's stuck in 100% download, and it
  • just won't let me use it. So I'm thinking about just, I don't
  • know, restarting my computer or transferring it from a different
  • device. I just can't download the file. The weirdest, the
  • weirdest issues I've never really had that happen before? I
  • just couldn't download CMake. It's stuck at 100%
  • CS should be on Windows. You should be able to just like, I'm
  • just gonna turn my computer on and off again. I'm working with
  • version
  • with Windows 10. Okay, yeah. Did it have any seats? Did it have
  • any seats? Or, like, default seats with so I can't tell if it
  • works. It's got the stuff the files there, you have to build.
  • It. Not sustainable is getting them to build so you can, there
  • are scenes available if you download it's
  • just not In a scenes folder.
  • So there's a repository of i
  • i So there's this is the scenes, and that's where I was getting
  • when I was using the software to show some images yet last week,
  • I got from there. So that's an addition
  • to the PBR to before like GitHub page. The guy who has that
  • GitHub repository, if you go to his like personal profile, you
  • can find this repository. So MMP, yes, so that's not far.
  • Yeah, see, that's what we're missing. Is it wasn't clear that
  • we had to do this download the scene separately from the GitHub
  • stuff. It's not part of that.
  • Okay, my apologies, because I didn't know this existed till
  • right now. I
  • cancel it.
  • Okay. So if there are questions or things that I need to do,
  • Let me know. I
  • Okay,
  • So the other thing I
  • so there's a resources page for links of source. Notice she
  • seems to render.
  • But there is a
  • I
  • was sure I was on this page and found
  • Scene, description, rendering,
  • there.
  • This is A sample Fauci copied this and
  • I select This copy.
  • Create a File, simple, dot, pbrt,
  • finish. Should get a an image like that out of it. I
  • so that's the file format, v4 page. So
  • Okay,
  • anyone else besides David find that video useful? I've
  • already been looking at that one. I forget what's going on.
  • Let's
  • see What. Me.
  • I
  • So who's had some success with Windows and C make? I
  • So are you talking about Windows or Linux? Windows?
  • So did you have success with Linux? I haven't started on
  • Linux yet, doing that later.
  • Okay, so tell me about CMake and windows. I already got CMake
  • downloaded for a previous semesters, like requirements,
  • because we just C make everything. But other than that,
  • you kind of just built it. Do
  • it is, it is particular that you do have to have. Was it c plus
  • plus 17? Yes,
  • which already now, and I don't know if there's a different
  • version of C plus plus 17, because I haven't updated
  • anything a while, but I noticed that when he checks his Visual
  • Studio, so you check that version 17, he was using CS
  • dependent CS as part of that video. So it seems like you need
  • 17. Yeah, I'm not sure that 17 is the same. You just 20 sets.
  • It might have been still. It's not the same, 17. So he's
  • talking c plus plus 17. Where the video he talked about Visual
  • Studio 17, so that it doesn't necessarily mean that they're
  • the same thing. Yeah, do
  • I don't think that they are I think CS has different
  • timelines, yeah, so it's a standard from 2017
  • Yeah. So we'd be up to like 24 by now. I don't know when the
  • last one was set up. But yeah, it's not the most recent studios
  • that he brought up. I have Visual Studios 19 on my
  • computer, so I think that's where my issue is right now, is
  • that I'm using when I'm trying to write CS using the wrong
  • version of Visual Studio. So he was dealing with, he used 22
  • then it's version 17 on my computer. I have version 2019 on
  • mine, so I'm gonna have to check the version on my computer to
  • see if it's actually 17, whether it's version 17 or whether it's
  • that's why I think his video is pretty useful for, like,
  • troubleshooting his works. So if we can just do what he does,
  • we'll be good. Yeah. He was also dealing with version three of
  • the Software, no version old.
  • Was I too harsh?
  • I
  • is,
  • when I Googled it, I got the same video as a suggestion. So I
  • think it's just the most relevant. I just gave a terrible
  • people make videos about this. We need to make more people make
  • videos about combined with dvrt, yeah, so maybe that would be an
  • opportunity you were
  • building up Windows 10, right? Laura, yes, you were on, I think
  • right? Laura, yes, there's 10.
  • Okay, so
  • who's got Visual Studio installed on their Windows
  • computer? Does everyone have that?
  • Okay? Do Visual Studio. Visual
  • Studio,
  • working same with my it's the Visual Studio, so I'm thinking
  • it's
  • not using the rubber or kind
  • of my
  • thinking I could be trying to keep on 17, thinking about the
  • latest one, like 15 years.
  • I different
  • sort of so on the C make web page
  • can download binaries i
  • Okay,
  • so have you googled The error message that you're getting. No,
  • I was getting shots before I came to come here. Okay, I'm
  • thinking it's probably, I'm telling it to you, Visual
  • Studio.
  • So David, this if you do C make, did you
  • trying to download from this page? Yeah,
  • yeah, I don't know. I've read that happens. It's stuck at 100%
  • like, I'm like, maybe I just need to restart my computer.
  • Maybe it's it restarts every night. I don't know. I actually
  • have no idea why it's downloading correctly, but I'm
  • gonna just try using a different device to download it and then
  • transfer it over. Okay, it should work. That sounds it
  • should it sounds like I should be having this problem. I'm just
  • randomly having this problem.
  • Of all things you
  • you could through source available too, if you wanted to
  • try that anyway. I don't want to make this about
  • dealing with software, so I don't want to. I
  • i
  • So I think it's a good experience to get the software
  • running on your computer,
  • but I don't want to make it about the software, so I'm going
  • to get, going to continue working on getting the thing
  • installed in labs. So if you're not able to run it on your own
  • computer, then you can go to the labs and do this. Because we're
  • just, we're going to focus on using the software in
  • assignments and so forth.
  • So I'll just say Google your error messages, results,
  • I try that
  • again. Post results for the weekly more
  • class discussion.
  • The
  • so I didn't go over the quiz from last day, so let's do that
  • last few minutes.
  • Does that make sense?
  • So I want you
  • it's not a burden to bear individually, to do this if
  • you're having problems, it's not anything, pardon me, I said
  • they're not alone. Yeah, you're not alone, and it's not a
  • reflection on you. So I think this is an opportunity to
  • to develop our community interpersonal communication,
  • skills as computer scientists,
  • and all those good things. So it's like having a group project
  • without having to do a group project.
  • All the benefits, none of the pain. What's that? Well, I
  • suppose they're having a bit of Pain.
  • I getting the softer to install. I
  • so you thought so why Lenny was an important milestone,
  • one of
  • the first early adopter of the physical based rendering systems
  • in CS mind, Adam Neil,
  • the winners are nominated. I think it was one short or best
  • short animated, Best Animated Short Film, if
  • and following
  • people who watched as a kid that were like, watch This. Really
  • creepy. But like, Oh, my
  • God,
  • that's I
  • so does Lynn's law as technology advances, rendering time remains
  • constant. Yes, yes, so I didn't.
  • So I should play. I met Jim Lynn at SIGGRAPH once, and he gave me
  • a ribbon
  • that SIGGRAPH they do once you get these ribbons in in one tray
  • of location, someone took a picture of me because I had
  • ribbons down to the floor. Anyway.
  • I never saw the picture until someone
  • said to me, I've got words. So they saw the picture somewhere.
  • But anyway,
  • so here's
  • the That makes
  • sense, right? I,
  • how did I phrase the Last question you
  • so my Physically Based Rendering important In production
  • environments,
  • improves productivity and like efficiency, reflection. Shadows
  • and other lighting, quality talk,
  • yes,
  • but like efficiency and like productivity, you have to spend
  • less, like, time working on like, every single detail and
  • every scene can do more of a uniform, I guess,
  • transformation, it seems. Yeah.
  • So we're empowering the artists, making their life easier.
  • And forgot everything that's simulating reality, then we
  • don't have
  • so you said the benefit was that you could make in your earlier
  • days, you could make lights that behave strangely to meet the
  • need of the scene. Then it took the lighting into different
  • situation, then it wouldn't work, because the parameters for
  • the object the materials weren't set to reasonable values.
  • So provided a
  • uniformity, so we're not we're not fitting for always working
  • to make the most, the most accurate simulation of reality,
  • then we
  • don't so we don't go wrong.
  • So I have a little link. We're out of time, and
  • I don't get people trying to come into the class before the
  • last class is over. I get it when people come into class,
  • when the class starting time
  • has passed and the previous person is still here, well, be
  • respectful of the
  • fact that some classes ended 10, two, not quarter after. Our
  • particular classes don't flip back quarter after. But there
  • are other classes, if it was only an hour off class, it rents
  • till 20 after. So being aware of one class before you end, we're
  • supposed to happen. Yeah.
  • Anyway, thanks for today,
  • and let's keep working on this as a group effort.
  • And we'll get we'll get it sort of
  • soon, later in real time. Thanks for today. Take care. See you on
  • Thursday.

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