Cineversity

Nice tutorial, thanks.

about triangle @ 9:25 “subject to other tutorial”, may I know the other tutorial link where the triangle are resolved.

Thanks.

Hi iacdxb,

“…but that’s a subject for another tutorial.”, is how I heard it. To me that means, that there could be one, but not scheduled at all.

The newest modeling tutorial, that contains the core idea of [support] edges and Subdivision is here:

https://www.cineversity.com/vidplaylist/design_it_with_cineware/design_it_with_cineware_model_coffee_mug_in_c4d

I call those extra introduces edges support edges,
http://old.cineversity.com/forum/forum_posts.asp?TID=3673
as they do not (mostly) enhance anything in the polygon model, but since the Subdivision Algorithm relies on the information given from the polygon mesh, those extra points/edges are important parts of the process, besides of course the information that you can store in an SSD Weight Tag:
https://help.maxon.net/#TSDS

If you use the search options, please try as well the former name HyperNURBS, to all the results.

All the best

HI,

I was trying this cap rings… 3 rings and each is separate, going bottom to top. It will be with helix with 3 rotations or each separate helix with loft and make copies to other side and then joint to surface… trying but confused…. can you please guide with some process tips.

Ref.:

Thanks.

Hi iacdxb,

Thanks for the image that helps to get closer.

Let’s see what we have

The bottle-thread that you show, as you mentioned, has three threads,
each of them is starting 120º apart.
A fair assumption is, that they stop as well 120º apart.
A little bit more unclear, based on just one image, how much they overlap, roughly 40-50º seems plausible.

The steep value of the thread isn’t really precisely to catch, as the camera was too close and the lens based on the distance too wide. I prefer a 500 or even 1000mm lens and go as far as possible away, to get a nearly orthogonal shot of the subject. (I use a cheap Mirror lens for that, four decades old). Top, front and side. Works great.
To evaluate what you need, here is a set up as an example: (The focal length depends on the object size in question)
https://www.amazon.com/clouddrive/share/Y98KFu9SIgBBCk3jjFDAonYplCbqj1yALSxwusuufLo

So, having nit picked on that image (sorry about that, but I did so more to excuse my rough estimations), I would say we need a plane (overall) with a ratio of 1:18 (+/-). That is the minimum in height when its done, so we need more. Given the
Since it is clear that there is a tripple repetition, the polygon count horizontally needs to be dividable by three.

Three ways to model it, just one thread and bend it, clone and merge. Secondly, model only a third with a vertical cut, preferably where only one thread is in the seam. Third, and that is attached, as it allows for the simplest show and tell in the file, wrap it one time, shift it, and done. I used a segment to measure 10º so 36 segments, which allowed me then to have two segments in height creating a square, to follow my ratio from above roughly.

All other steps are explained in the tutorial. I used a different method here for the thread creation, as in first M~W (extrude inner) then M~T (extrude) with the selection intact, I pulled it a little bit down, to follow your image.

Scene file with the major steps.
https://www.amazon.com/clouddrive/share/SROTZd8yQ1zggkVgdElPNViZX6S2grLW62ZCWchmwo

Cheers

P.S.: in the file – CSTO stands for Current State To Object

Thanks Dr. Sassi, got the point and thanks for the sample file.

Regards.

Cool, thanks for the feedback, iacdxb, you’re welcome.

(Perhaps mine should have been three segments more off-set… )

Let me know if there is anything else, I’m happy to look into it.

Enjoy your weekend!