Collab 2020: Modeling Heavy Equipment (Backhoe)

Collaborations
Kent Trammell

Accomplishing a BIG project TOGETHER

Starting in March 2020, I began a large stream project to model a comprehensive, highly-detailed Caterpillar 434E backhoe. Please watch the first stream (first 3 minutes of abridged version at least) for an overview.

It's a straight-forward project of building a complex model over an extended period of time. The spin on the project is that I want your help to accomplish it! If I build some parts and you build some parts, we will finish this thing much quicker. Plus the contribution format will include reviews, the potential of having your piece(s) assimilated into the final model. Not to mention large quantities of XP are at stake 🤑

NOTE: This is an involved project reserved for Citizen members.

Collaboration Details

The general idea is that I kickoff stages of the project via live stream, which is typically once per month. For the time in between streams, you choose a piece of the backhoe and apply what you learned from the stream to that piece. For example, the first stream covered initial block out. So between stream 1 and stream 2, your job is to pick a piece and block it out.

This is the repeating protocol for each Assignment Period (between-streams):

  1. Signing up for pieces of the model. I will be maintaining a Google Sheet to organize piece selection and grading. Following this URL will give you the ability to comment. The sheet is sectioned vertically and color-coordinated with a backhoe image. To sign up for a piece, right click on an empty cell below your desired piece section and click "Comment" (CTRL + ALT + M). Comment your name or username and I will fill it in officially as confirmation.

    Remember that it is OK for multiple people to model the same piece. But lets try to have at least one person assigned to each piece before doubling up.

    2. Project file structure. We're going to use Google Drive as a means to sync a single working directory among all contributors. See this thread about details and how to get set up.

    3. Submitting your piece for review. Exactly one week before the next stream is scheduled to be broadcast, your piece is due. In the "Attempt" cell of the spreadsheet, paste a download link to your .blend file via Dropbox, Google Drive, or equivalent hosting service. This will earn you at least 10 XP each week.

    4. Review. On stream I will review each submitted piece and decide which will be assimilated into the master model (in the case of multiple submissions of the same piece). The purpose of the review is to generate feedback for you work and advice for improvement.

    5. Assimilation. If your piece makes the cut and is assimilated into the master model, your name / username will be added to the object in Blender. You will go down in history as a definitive contributor to this epic backhoe model!

    Once the model is completely done, I plan to render a short demo reel showing off the model and crediting all contributors. It should be a rewarding conclusion to all the work we will do!

Assignment Prompts

I will reply to this thread after each stream with a [big] assignment post denoted by a  📣 emoji in the title. There I will clarify instructions about each Assignment Period.

Online Resources

Reference Images

Livestreams


This is THE thread

We will centralize our collaborative communication between the streams and this thread. Ask any and all questions pertaining to the Backhoe project here.

  • spikeyxxx replied

    Okay, one more, less obvious connection between 1001 and 9:

    Take the multiplicative inverse of the divisors of 1001:

    1/7 = 0.142857....(these six digits repeat after that, forever)

    1/11 = 0.09.....(repeating)

    1/13 = 0.076923,,,,(repeating).

    Now add the first half of the repeating digits to the second half (so, for instance: 1+8, 4+5 and 2+7) and you get 9999999.... (infinitely many)

  • Omar Domenech(dostovel) replied

    Hmmm, let me check when's the livestream going to.....

  • Ingmar Franz(duerer) replied

    Wow, spikeyxxx, I wasn't aware of these implications! I like these numbers games very much! 

    Are you a mathematician or at least a numberphile? Then you certainly know the "Numberphile"-Youtube-channel, where I've found a practical use for mathematics concerning the big brother of a cookie, the cake: https://www.youtube.com/watch?v=kaMKInkV7Vs

  • spikeyxxx replied

    duerer I studied mathematics for 2 years back in 1985 or so. I know the Numberphile channel; fun to watch; although they're (of course) just scratching the surface, it can get me 'in the mood' for more...

  • Ingmar Franz(duerer) replied

    spikeyxxx One thing I haven't fully understood and which concerns Blender and animations are quaternions. I remember an article in the "Blender Art" magazine Nr. 31 about rotations and escpecially quaternions (imho the best explanation I've found so far) and the Blender foundation's DVD about rigging. But I still haven't fully understood it and searched the internet for explanatory videos which are still blowing my mind and definitively need a deeper insight into mathematics..

  • spikeyxxx replied

    duerer I agree that quaternions (although they are just an extension of the complex numbers and therefore not that difficult)

    are usually explained really bad, mostly talking about a 4 dimensional hypersphere, like that is something we are all familiar with, but you could start here: https://cgcookie.com/questions/11283-quaternions-demystified-part-one
    https://cgcookie.com/questions/11284-quaternions-demystified-intermezzo
    https://cgcookie.com/questions/11287-quaternions-demystified-grand-finale

    Not the best explanation either, (spoiler. a much beter version is on the way!) but something to at least get a different perspective... (I didn't re-read them, because I'd probably be too ashamed...)

  • Ingmar Franz(duerer) replied

    Thanks, spikeyxxx, for the links 😀! You've pointed exactly to a problem that I've encountered so often: the confusing explanations. I have two videos on my "To-watch-list":

    1. Fantastic Quaternions - Numberphile

    2. Visualizing quaternions (4d numbers) with stereographic projection


    But I haven't done it yet, maybe also due to bad experiences with cryptic explanations from people who are surely very intelligent but for some reasons aren't able to explain it well to non-mathematicians. And believe me, I don't give up quickly. It's just that these people don't give proper definitions of the terms they're using. And that's when I stop the video.

  • Omar Domenech(dostovel) replied

    I too am a science enthusiast, which I should've studied in college and not Advertisement. Why does society have us pick what we are going to do for the rest of our lives when we are just 16 year old kids. Of course you're more likely to mess your choice up, you're just a kid.

  • Karen Trevino(ketre) replied

    I was 15 and I never pursued my dream because I was too short 😢 I would never have dreamed I’d be so into computers tho, I was in my 40s when I got it btw. But as soon as I learned how.   self taught on so many levels I knew graphics was my true dream. 

    Your never too old to learn!

  • Karen Trevino(ketre) replied

    As far as math and what you guys are saying...yall be talking in a foriegn lingo to me🤣

  • Omar Domenech(dostovel) replied

    Too short? You wanted to play basketball? or maybe a professional light bulb installer without a ladder.

  • Karen Trevino(ketre) replied

    Shoot I have a hard time reaching items in the bottom of our top cabinets🤣😖

  • adrian replied

    [Q] do we we need to submit our part this month on the google sheet?? as we have the shared file on google drive is there a need to?? 

  • Ingmar Franz(duerer) replied

    It's a kind of self-fulfilling prophecy. If you tackle a challenge with positive thinking, you'll find a way to succeed (as long as you don't try to win a broad jump tournament with a broken leg or something like this, of course).  

    With the words of CG artist William Vaughan:

    " Actually, the one thing you need to go past is simply the way you think.
    It's my experience that most people have a can't-do attitude, especially when
    it comes to learning new things. When I say most people, I'm not limiting
    that to artists new to 3D. I witness this on just about every forum online
    and at the industry shows I attend. Most people assume that things are not
    possible, they are too dfficult, or special software/hardware is needed to solve
    the problem. I always suggest a different approach.
    It may sound cliché, but the power of positive thinking goes a long way when
    working in this industry. Every day you'll be asked to tackle the impossible,
    and if you go in with the attitude of can do, you'll be able to see the task to
    completion. If your attitude is not possible, you will most likely not complete
    the task. It's called a self-fulfilling prophecy."

    (William Vaughan: Digital modeling, page 16)

  • adrian replied

    I knew it, I thought I could see a resemblance, spikeyxxx is related to my mate Albert, you know the one, Einstein, I think.

  • Omar Domenech(dostovel) replied

    I kinda jumped into immediately reading the quote and assumed it was from Socrates times; "I'm not limiting that to artists new to 3D" I was like WAIT WHAT!? Socrates used computers!?

  • Omar Domenech(dostovel) replied

    I'm assuming we don't have to submit. I really thought Kent was away for a long time and the stream was not going to be for a long long while, but it's just this Tuesday, jesus christ. Time under quarantine is behaving really strange. 


  • Ingmar Franz(duerer) replied

    dostovel Yes, the old Greeks were already very progressive 😉😁! The science history books have to be rewritten!

  • adrian replied

    Socrates had a computer, he played Fifa football on it.

    By the way, talking of geniuses, two separate replies, I've just posted, but related to each other by the fact that the brilliant Brazillian football player Socrates died in Albert Einstein Israelite Hospital in Sao Paulo, Brazil.

  • Omar Domenech(dostovel) replied

    I just googled that, there was indeed a football player named Socrates and died in Albert Einstein. I also googled to see if Albert Einstein died in Socrates, but no, Princeton Medical Center. What a waste.