SubD examples and models

pilou · 17 Mar 2016, 22:51

Ixlrlxi was yet a master modeler, so with SubD it will be a super master!

olishea · 18 Mar 2016, 10:14

the rear end of that car is so emotive. love it.

Box · 20 Mar 2016, 11:20

He's a simple Dolphin if anyone wants one.
It's only very quick and straight out of my head so may offend the aesthetic sensibilities of any passing Aquatic Mammal specialists.
Saved the proxy back to 8.

DolphinSU8.skp

HornOxx · 20 Mar 2016, 11:50

a great idea and model for this place - thanks for that

ntxdave · 20 Mar 2016, 15:44

Very nice Box - good basic example of how to use the tools.

alsomar · 21 Mar 2016, 09:07

Well, here comes mine:

and after a little bit of Thea and Photoshop, this is the result:

Rich O Brien · 21 Mar 2016, 09:13

love that tyre!

optimaforever · 21 Mar 2016, 09:16

impressive!
did you model one groove, component it and copy it in revolving fashion, then explode them before subdividing??

alsomar · 21 Mar 2016, 09:23

@optimaforever said:

did you model one groove, component it and copy it in revolving fashion, then explode them before subdividing??

You nailed it. That's exactly what I did

pilou · 21 Mar 2016, 09:27

How many time the subdivision itself ? Negligible or...

alsomar · 21 Mar 2016, 09:42

@pilou said:

How many time the subdivision itself ? Negligible or...

There's two subdivisions and it took about 2 mins to complete the process.

thomthom · 21 Mar 2016, 10:53

@alsomar said:

and after a little bit of Thea and Photoshop, this is the result:

Great model - and I love that presentation style. Reminded me of the LEGO instructions.

numerobis · 21 Mar 2016, 11:44

@alsomar said:

There's two subdivisions and it took about 2 mins to complete the process.

I really hope Trimble is following this thread and finally realizes that there is something wrong - 2 mins for such a small model is a joke and one reason why i still do my subd work in Max.
Something like this should be generated instantly.

olishea · 29 Mar 2016, 14:00

Yes and about a half second in Wings 3D (which is pretty much redundant) and a half second in meshlab. SU is really bad at subdivision times; makes you wonder if you can integrate a subdivision app via a plugin so that SU doesn't even have to calculate the subdivision at all.

thomthom · 29 Mar 2016, 14:10

@olishea said:

SU is really bad at subdivision times; makes you wonder if you can integrate a subdivision app via a plugin so that SU doesn't even have to calculate the subdivision at all.

At the moment; no. The current API require me to generate new model entities in the model DOM. Where as the ideal way would be to be able to override the viewport presentation of an object. Basically highjack the render-pipeline for a given object. That would allowed me to avoid the biggest bottleneck: generating SU entities which each needs to merge with each other for the special SU stickyness.

The SU magic isn't ideal for extensions like SUbD where you aren't supposed to be editing the final result in the viewport. Had SU known only about the control mesh then any tool could edit the mesh while the viewport displayed the subdivided result.

olishea · 29 Mar 2016, 16:13

@thomthom said:

Had SU known only about the control mesh then any tool could edit the mesh while the viewport displayed the subdivided result.

You explain things better than I do!

This is what I mean; is there a way to show the subdivided mesh in a small window that runs real-time with the SU model?

You would simply play with the control mesh in SU and a window shows a subdivided version that moves in real time with the SU model? When you rotate, zoom and orbit the subdivided "render" does so too.

Then when you are happy you can do the final subdivision inside SU right at the end.

thomthom · 29 Mar 2016, 17:50

@olishea said:

This is what I mean; is there a way to show the subdivided mesh in a small window that runs real-time with the SU model?

Oh, well, that surely is the next thing I'd poke into once OpenSubdiv is implemented! I was thinking of it in two stages:

A preview window on the side.
Make the background of that preview window transparent and overlay it the SU viewport. (not sure how well that'll work since it'd be a separate 3d spacxe on top of SU's view...)

olishea · 30 Mar 2016, 12:06

Nice!!

I thought I was talking jibber jabber but you catch my drift!

Can't you already do something similar with Maxwell? It renders a subdivided version of your control mesh? I'm not maxwell user so unsure. Also needs to be realtime, simple shader.

If you could switch between SU viewport and a SubD render overlay that would be better.....kinda like Thea where you can see the render in the viewport. If you could press a hotkey and the screen changes to the subdivided render that would be a total game changer for SU.

Even if it was a preview window I would be happy to be fair.

thomthom · 30 Mar 2016, 21:06

@olishea said:

Can't you already do something similar with Maxwell?

Yea I wonder if I saw a YouTube video on that. Though I'm not a Maxwell user...

numerobis · 31 Mar 2016, 09:15

@thomthom said:

A preview window on the side.

Make the background of that preview window transparent and overlay it the SU viewport. (not sure how well that'll work since it'd be a separate 3d spacxe on top of SU's view...)

Please, no separate window!

@olishea said:

Can't you already do something similar with Maxwell? It renders a subdivided version of your control mesh? I'm not maxwell user so unsure. Also needs to be realtime, simple shader.

Yes, Maxwell has render time subdivision. It's not a shader, it's a modifier, that produces real subdivision geometry.
http://support.nextlimit.com/display/mxdocsv3/Pixar+OpenSubdiv