SubD examples and models

Box

Did you use the normal SU move tool for to snap and fix these exact points then?

It doesn't really matter how you arrive at the shapes, it's just a matter of using the crease tool to lock them in place.
So if you draw a circle with the normal 24 sides and extrude and expand etc etc but crease the original border of the circle, the hole created by that circle even after subding will be the same as when you created it. So you can happily draw accurate sizes and keep them in the same piece as heavily deformed shapes. Which makes it easier for creating 3d printables.
Mind you, there is no reason I couldn't make the fitting and the "mouth" shape separate pieces, and using the same logic mate them together perfectly via creasing.

thomthom

@optimaforever said:

btw sometimes when I open a skp with a subd-ed mesh in it, the mesh is invisible (but it's definitely there, as you can select a hollow box and it becomes visible if you toggle the subdivision off)...

Is there a fix for this? what causes this?

Do you have such a model you can share?
And the mesh isn't missing when you save? It could either be some extension that do something to the model when it saves. Or could it be a graphic card issue?
Do you ever get a SUbD error dialog?

HornOxx

@optimaforever said:

... again a ... question:
to get these topologies (Cut Face A and B), is there a specific tool or can I draw them the usual way with QFT line tool?

... that´s a good question and thanks for your useful picture - in 2D, these "curved direction changes" can be drawn with basic SU tools.
As they are so useful, I´ll add them here if someone wants to use them as "instant groups"

Basic_Geometry1.skp

HornOxx

thats good! thanks for this workflow

just right click on the gif within your web page and copy the gif´s URL and paste it her - like you would post any other internet linked picture

Hieru

Here's my workflow for building them from scratch.

Hieru

Thanks . It's so obvious really....let's chalk it up to a senior moment.

Box

I was just fiddling around with this and thought it worth dropping in.
This is the funny horn from a few pages back. Rendered in Twilight.

olishea

that speaker-bowl thingy is extremely well modelled well done box

Box

Cheers, Oli, I'm just getting my beginner bits in before you break the mold.

pilou

olishea

@box said:

Cheers, Oli, I'm just getting my beginner bits in before you break the mold.

lol don't know about that mate! great stuff! By break the mold I think you mean post some weird surrealist crap that doesn't really help anyone.

Box

Q: How many surrealists does it take to change a light bulb?

A: Fish.

olishea

PMSL!

what lightbulb it's just a molten blob of glass?!

On a serious note (if there is such a thing)....is there a multi-face offset for curved surfaces?

So like Tools On Surface offset that you can apply to several faces at once?

thomthom

@olishea said:

On a serious note (if there is such a thing)....is there a multi-face offset for curved surfaces?

So like Tools On Surface offset that you can apply to several faces at once?

How would it differ from TOS?
You mean something that preserves quads?

olishea

I think you can only offset one face at a time with TOS? And multi face offset is coplanar faces only.

I want to offset the lines from SubD....then you can JPP rails to form a complex shell that follows the SUbD topology.

olishea

OK let's use Rich's model as example. Picture says a thousands words n all that....

This would allow you to create "cages" for 3D printing etc. Hollowed out skeletons.

I want to offset every single quad like this with one click:

And then JPP or other....

thomthom

Ah, yes - I see now. We like pictures. And I like your idea.
Btw - the QFT issue tracker is public and a good way to file feature requests: https://bitbucket.org/thomthom/quadface-tools/issues?status=new%26amp;status=open

olishea

Great!

Also is an edge direction procedural out of the question? It can make the edge flow turn through 45 degrees. Then you could achieve a really funky cage!

See this 3DSMax video at 4:40 to see what I mean.

https://www.youtube.com/watch?v=tGL1RXFNLWQ

Thanks I'll be frequenting the QFT issue tracker

thomthom

Thanks. Once SUbD migrates to OpenSubdiv I'll turn my focus to Vertex Tools and QFT for improving the modelling tools. References like that are great to have (please include them in feature requests in the issue tracker.)

olishea

No problem....only just got round to really testing this. Thanks again for all you do.