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Weekly modeling challenge

A support and feedback forum for Autodesk T-Splines Plug-in for Rhino users.

Weekly modeling challenge

Postby Matt Sederberg » Mon Jul 25, 2011 2:02 pm

Our QA testing procedures involve a combination of running automated test suites and doing manual testing.

This morning we were brainstorming on how to make the manual testing more engaging.

We've decided to try doing a weekly modeling challenge for the next month.

Here's how it will work: each week, we'll assign a number of people here at T-Splines, Inc. to the challenge. (We take pride that everyone here, from sales to admin to developers, knows how to use the product :D - though this doesn't mean we're all talented!) We will then spend between 2-4 hours using T-Splines to model a specific object. (We'll be using the current internal build of the software to help uncover any bugs before releasing the software publicly.)

Anyway, I thought it would be fun to share the results of our modeling efforts here on the forum. I'm not promising a bunch of amazing models (guaranteed that Juan's model will be a work of art, but the rest of us might be embarrassed with what we have to show). But hopefully this could be helpful to someone.

So, I'm taking requests - what should we model for our first weekly modeling challenge? We'll be doing this on Thursday afternoon, so we'll consider any requests that come in the next few days. Remember, please keep it rather simple, to something that could be done in 2-4 hours.

Of course, we'll also welcome anyone else wanting to participate in the challenge.

Happy Pioneer Day,
Matt
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Re: Weekly modeling challenge

Postby dshapdesign » Tue Jul 26, 2011 2:26 pm

How about a hot air balloon?
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Re: Weekly modeling challenge

Postby Matt Sederberg » Wed Jul 27, 2011 1:34 pm

dshapdesign wrote:How about a hot air balloon?


Not a bad idea -- just any balloon? Do you have a picture?

Here are a couple of other shapes we're considering. Thoughts? We'll be starting this in 24 hours :D
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organic-design-rattan-armchairs-167885.jpg
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a4abe_buy_usb_mouse_417FCRZRJ9L.jpg
a4abe_buy_usb_mouse_417FCRZRJ9L.jpg (29.79 KiB) Viewed 61406 times
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Re: Weekly modeling challenge

Postby dshapdesign » Wed Jul 27, 2011 1:56 pm

Image
This hot air balloon 8)
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Re: Weekly modeling challenge

Postby JSantocono » Wed Jul 27, 2011 2:18 pm

Wow!
That's a cool balloon.
Looking to that while listening the sound of the hot air burning would be awesome!
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Re: Weekly modeling challenge

Postby kyle houchens » Thu Jul 28, 2011 11:09 am

I love everything about this idea!!
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Re: Weekly modeling challenge

Postby e30andrew » Thu Jul 28, 2011 11:27 am

I cant wait to see what you guys come up with!
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Re: Weekly modeling challenge

Postby Matt Sederberg » Thu Jul 28, 2011 3:17 pm

All right, here's my submission. Sharing this is a bit embarrassing since I think everyone on this forum has more design talent than I do, but here we go.

Extruded ellipsoids, bridged them together along a curve, tweaked control points, used the match command to get the edges up to the ellipsoids again (I did it without using a tolerance so it's not exactly up against the ellipsoids), and thickened with a crease.

I spent the most time being displeased with the highlights - specifically where the seat joined to the back/arms part. I played around with inserting edges, deleting them, moving control points around to try to get the right look. I don't think I'm there yet but it's time to get some other work done (see if we can release tsElements 1.2 today). I think the bottom is too fat too - you could fit an entire lunchbox inside your seat!

This was fun though and I'll look forward to trying this again next week.

Matt
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Re: Weekly modeling challenge

Postby JSantocono » Thu Jul 28, 2011 3:27 pm

Hi,
here is my version :-)
Basically I started from a primitive box to make the seat and the back separate. Then I joined all together using tsBridge. Some Manipulation to tweak the shape and done!
The legs are just tsPipe some straight lines.
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Re: Weekly modeling challenge

Postby Chris Botha » Sun Aug 07, 2011 2:11 pm

great idea guys :)

the proof of the pudding is in the drawing!
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Re: Weekly modeling challenge

Postby stratosfear » Sun Aug 07, 2011 11:29 pm

Hi,

How about a bike stem for the weekly modeling challenge.
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Re: Weekly modeling challenge

Postby Matt Sederberg » Mon Aug 08, 2011 9:40 am

stratosfear wrote:Hi,

How about a bike stem for the weekly modeling challenge.


Wow. This looks like a challenge for Juan :shock: :D .

Sorry we didn't do this challenge last week; I was on vacation. Some of us will be at SIGGRAPH in Vancouver this week so let's see if Juan can take this one on (or any other user!)
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Re: Weekly modeling challenge

Postby SDS » Mon Aug 15, 2011 9:54 am

Now this was a challenge! Stratos, I had to Google “bicycle stem” to see what this was.
Control Point curves were drawn for cross-section shapes, Control Polygons extracted then extruded along X (for the circular parts radially extruded). Barrel shapes were added for the bolt lugs, then these components were linked with lines. Tsplines worked its magic via tsFromLines to provide the smooth blends. Working with a quarter section (split along Y and Z) the form was edited to proportion, YY and ZZ symmetry used to complete, then the smaller bore was canted. I still need to smooth the two bores using tsMatch.
I exceeded the four hour time limit, but it was time well spent. The only bugs I noticed were;
-The inability to double-click to select an edge loop- occasionally it is necessary to hit Escape then Q to select a loop. I think someone already mentioned this.
-Using Control Z after adding symmetry causes a crash.
- "Hide", Invert Selection", "Delete" and "Invert and Hide" are very slow when the TSplines' Hud is on.
Happy TSPlining.
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Re: Weekly modeling challenge

Postby e30andrew » Mon Aug 15, 2011 10:31 am

wow! nice job man :D
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Re: Weekly modeling challenge

Postby JSantocono » Mon Aug 15, 2011 12:12 pm

Hi SDS,
Wow, good job!
That seems a pretty hard topology to layout...
You are the man!

Thanks for reporting this issues.
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Re: Weekly modeling challenge

Postby da6d2003 » Mon Aug 15, 2011 1:43 pm

Super job! 3dm is in v5
so I can't play with your file. :(
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Re: Weekly modeling challenge

Postby stratosfear » Mon Aug 15, 2011 1:51 pm

Hi, SDS

Well done you nailed all the really difficult areas of topology (I am impressed). I figured if anyone took on this deceptively difficult challenge they would just cheat the hard spots. I really just posted it as a joke response to the previous challenge (which I considered too damn easy) However you do realize the deadline for this challenge was last Thursday? So I regret to inform you that I can not accept this submission. It just wouldn't fair to all the other people who didn't even bother to make an effort.

I can see that I need to ramp up the difficulty. This weeks challenge is a calabi-yau manifold. It must represent at least six higher unseen dimensions. Sorry I can not provide any source images but I might be able to provide a mathematical equation. Good luck!
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Re: Weekly modeling challenge

Postby eldahan » Mon Aug 15, 2011 3:11 pm

hii
well done .could you please make a video how you made it . I think it's a very interesting tutorial to show us .
thank you
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Re: Weekly modeling challenge

Postby SDS » Tue Aug 16, 2011 4:41 am

All: Thanks for the compliments.
Juan: Thanks! Basically the same technique used here (remember this old thread?):
viewtopic.php?f=9&t=29774
da6: V4 file attached
Stratos: Oh well... schedules are made to be broken. As for the CY manifold (I had to Google that, too), I don't think I can finish it by Thursday ( I had enough trouble with Navier-Stokes!)
Eldahan: In the meantime, re-read the old thread I mentioned above.
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Re: Weekly modeling challenge

Postby stratosfear » Tue Aug 16, 2011 7:15 pm

Hi, SDS

Well I finally finished my version. It looks suspiciously like yours though just scaled a little differently and with slightly different topology. :lol:
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Re: Weekly modeling challenge

Postby stratosfear » Tue Aug 16, 2011 9:48 pm

Hi,

How about a table this time? Bonus points for using the bridge with twist command and creativity counts for something.
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Re: Weekly modeling challenge

Postby SDS » Wed Aug 17, 2011 5:59 am

Stratos, the similarity is amazing!
"Great minds think alike", "Form follows function", et cetera, et cetera.
I'm looking forward to seeing your completed TSpline bicycle.
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Re: Weekly modeling challenge

Postby stratosfear » Sun Aug 21, 2011 11:59 pm

Odd numbered symmetry does present some unique challenges. Much more difficult than I thought.
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Re: Weekly modeling challenge

Postby Adam Helps » Tue Aug 23, 2011 4:48 pm

stratosfear wrote:Odd numbered symmetry does present some unique challenges.


No kidding -- it was a bit brain-bending to write as well ;).

That table's pretty cool. I've been toying with doing a fifths or sevenths rotary model just to see what happens -- not sure if it'd look good, though ;).
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Re: Weekly modeling challenge

Postby JSantocono » Wed Aug 24, 2011 2:31 pm

Here is my attempt at the table.....
Workflow: Making the flat T-Splines surface (polygonal modeling), Manipulation the points in position, and thicken.
Modeling time: 1 hour approx. (modeling + rendering)
I am sure it can be done with cleaner topology.
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Re: Weekly modeling challenge

Postby stratosfear » Wed Aug 24, 2011 5:27 pm

Hi, Juan

I wish I thought to use thicken it would have saved me some considerable time. At one point I used duplicate face, symmetry, remove symmetry, delete faces, rotate faces and weld points. It's all kind of a blur now. But in the end I did go one better than you Juan. I used radial symmetry. It took some effort to set it up. I've only seen it used with torus primitives before so I assumed there must be reason. The whole time I was thinking with this much self intersecting topology this is going to crash so hard. To my amazement it worked even with non planar topology. So Adam if radial symmetry can work this well where's the "make perfect command"? I need it bad.
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Re: Weekly modeling challenge

Postby eldahan » Mon Aug 29, 2011 7:48 am

hi
how about Pc speakers for the weekly modeling challenge ?
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Re: Weekly modeling challenge

Postby e30andrew » Mon Aug 29, 2011 8:46 am

those look fun :D
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Re: Weekly modeling challenge

Postby JSantocono » Wed Aug 31, 2011 9:00 am

These pc speakers look fun to do.
Not sure if I would approach it as a single T-Splines surface tough.
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Re: Weekly modeling challenge

Postby eldahan » Thu Sep 01, 2011 7:03 am

I'm still working on it its very difficult for me
I'll keep trying :D
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Re: Weekly modeling challenge

Postby bobro » Tue Sep 06, 2011 6:50 am

Eldahan said:"well done .could you please make a video how you made it . I think it's a very interesting tutorial to show us .
thank you"


I think the same:)!!!
I saw the airplai design link but it's a little complicate for me...also an airplain-TSplines video tutorial would be interesting...what do you think SDS? Juan?...
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Re: Weekly modeling challenge

Postby JSantocono » Tue Sep 06, 2011 9:45 am

I didn't do that model so I would not be able to make a tutorial of that part. It's a pretty complex model for a tutorial :-)
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Re: Weekly modeling challenge

Postby jodyc » Wed Sep 07, 2011 11:11 am

Better late than never! Here is my go at the organic table challenge. This was a very interesting topology and I learned a lot in the process. Jody
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Learning to use Keyshot in this render...
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Re: Weekly modeling challenge

Postby JSantocono » Wed Sep 07, 2011 11:15 am

Hey Jody, nice model. And render.
Good you learn something on the process.
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Re: Weekly modeling challenge

Postby SDS » Thu Sep 08, 2011 12:29 pm

Eldahan and Bobro: Sorry- no video, but I did a step by step drawing for the end cap. It's attached to a new thread.
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Re: Weekly modeling challenge

Postby stratosfear » Sun Sep 11, 2011 5:03 pm

Hi,

How about a two component challenge? Build/repair a car out of triangle .obj mesh.
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Re: Weekly modeling challenge

Postby stratosfear » Wed Sep 14, 2011 3:12 am

Hi,

Well, this turned out to be more difficult than I expected. Rhino's triangle mesh conversion is not a miracle maker. The remove from group command was big problem solver though. I've found that working at little sections at time then appling symmetry and stitching the sections together works best. Trying to do everything at once is like building a jigsaw puzzle with missing and broken pieces. Not sure if this has been worth the effort but I've learned a few things. My apologizes to anyone else who's taken on this challenge. :oops:
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Re: Weekly modeling challenge

Postby JSantocono » Wed Nov 30, 2011 1:04 pm

Hey, Here is another challenge...
...a beautiful shape and very good to practice some topology layout.
Give it a try, I will.

A starWars imperial guard helmet :-)
A simple Google give you tons of images...

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Re: Weekly modeling challenge

Postby sgreenawalt » Thu Dec 01, 2011 7:08 pm

This thread totally rules! How did I miss this for so long? Why are there so few hours in the day?

-Sky
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Re: Weekly modeling challenge

Postby JSantocono » Fri Dec 02, 2011 11:48 am

sgreenawalt wrote:Why are there so few hours in the day?

heh..

Nobody is going to give this a try?

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Re: Weekly modeling challenge

Postby v2122 » Wed Dec 07, 2011 1:49 am

That`s organic-speaker :D

Use tow tsQuadball Bridge

Best
SimonChen
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Re: Weekly modeling challenge

Postby JSantocono » Wed Dec 07, 2011 6:38 am

Hey Simon, the speakers look great!
Nice job.

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Re: Weekly modeling challenge

Postby JSantocono » Wed Dec 07, 2011 6:42 am

Here is my attempt at the Imperial guard helmet...

JuanS
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Re: Weekly modeling challenge

Postby v2122 » Wed Dec 07, 2011 10:22 am

Thanks JuanS :lol:
The starWars imperial guard helmet look great!! :D
Here is No.2 Organic_Speaker: Bowers & Wilkins Nautilus
02.png
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01.png
01.png (121.27 KiB) Viewed 59183 times


Best!
SimonChen
Last edited by v2122 on Thu Dec 08, 2011 10:04 am, edited 1 time in total.
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Re: Weekly modeling challenge

Postby v2122 » Thu Dec 08, 2011 10:02 am

Hello! :D

Here is No.3 Organic_Speaker
123.png

246.png
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Best!

SimonChen
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Re: Weekly modeling challenge

Postby v2122 » Fri Dec 09, 2011 9:42 am

Hi! :D

It's a FlowerFan
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002.png
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