Agreed!

At least it works good with organic shapes and maybe they improve it for hard surface cases.

Regards
Stefan

Hi Stefan,

Quadriflow is definitely worth keeping an eye on.

Did you get the sharp edge option to work? I'm curious how different hard-surface models are retopologized with that option.

Hi Metin,

i exported from MoI as high-density triangle mesh and was able to
use QuadrFlow with the -sharp option on the first model. But in
QuadriFlow i used also a higher poly count setting. The second
model failed here too. But for me it makes not much sense to
use also a high poly count setting, to only have many small quads.

But this is no problem for me, because i have ZBrush, in case
i need to auto-retopo a CAD mesh... :-)

Regards
Stefan

I'm not aware of any auto-retopo process for CAD meshes in ZBrush, can you elaborate? I was under the impression using poly groups was required for good results, which means a lot of manual work to break up the surfaces.

Hi Chris,

Paul Gaboury showed once in a video, how to poly group a CAD model fast.

https://www.youtube.com/watch?time_continue=1&v=IzFZfJDQOOM

starts at 39:04.

Then you have also the option with MoI to create with a script random
style colors to a model and can use these for poly groups in ZBrush.

But to be honest why to auto-retopo a *MoI* CAD mesh... MoI has the
best mesher available! :-)

Regards
Stefan

Thanks for that link. I'll have to watch it several more times.

Hi Chris,

Here's an image by a company called Kermaco I once found on Pinterest, explaining a multi-stage CAD model retopology process in ZBrush:



I expect you'll have to open the image in a new tab to see the full-size version.

Hi Metin and alll,

have you already tried ZRemesher v3? I have not downloaded yet, but i am
very curious how it would remesh the models Michael has posted.

Regards
Stefan

BTW. i have just seen that there is an online version of Quadriflow.

https://yichaozhou.com/publication/1805quadriflow/#tool

Regards
Stefan

Quadriflow online : seems you can't upload your own model for quadrangulate it?

Else Zbrush seems robust :)

Sorry, overlooked it ...

So can you try ZRemesher v3 please, with the models Michael provided?

Regards
Stefan

Hi Stefan, Pilou and others,

Being in one of my many wrestling matches with the dreaded deadline monster, I regret not having found the time yet to try ZBrush 2019.

From what I've seen in the Pixologic introduction video I’m reasonably excited about ZBrush 2019. Personally I can’t wait to have a go at ZRemesher 3.0 with the new hard surface improvements. The subtool folders are great too, also the ability to use them in Live Boolean mode.

I feel a bit ambivalent about the Spotlight alpha mesher feature. It feels a bit like a revisit of the old Shadowbox, a feature I usually forget during modeling.

The NPR rendering possibilities look very good, but to me that also feels like going back in time about 10 to 15 years, back when finalToon, Pencil+ and Liquid+ were state-of-the-art 3ds Max NPR plug-ins.

Any tips and observations regarding ZBrush 2019 are welcome.

Thanks!

M7

Have you the OBJ files triangulated of objects concerned ?
Can you post them...
I have not yet the last Zbrush version, but I can make test them by someones! :)

@Metin,

No problem, i will see that i can try downloading ZBrush this afternoon.

@Pilou,

Michael has posted the original NURBS models, so you only have to load
them into MoI and then save as .obj.

However, when i come home i will try to download ZBrush and try myself then.

Regards
Stefan

O.k., did a quick and not so much in-depth test.

The first object looks very good, while the second object has
some issues with the small ribs. I may have to check out
better settings, while i must also admit why to remesh such
objects … , when one could either use the .obj files from MoI
or model them directly with ZModeler …





Regards
Stefan

Hi Stefan, those are some good results!

> I may have to check out better settings, while i must also admit why to remesh such objects …

Well people ask for an "all quads" output from MoI pretty frequently, and these are the kinds of objects where it's difficult to do that (while also being not unusual CAD models as well) so it's a good example of why MoI does not have that function currently.

- Michael

How these 2 objects have been transformed into OBJ format ? from what start format ? With what program ?

Hi Michael,

yes, I understand what you mean. Maybe people requesting such a feature are used to
subd modeling only, prior they discovered NURBS modeling and see a need for this?

But I have never read from them what purpose a quad only CAD model should serve.

Best regards
Stefan

Hi Pilou,

Michael posted the files in article 8817.23 of this thread. You only need to load
the models into MoI and then export from MoI as .obj, to load into ZBrush.

Regards
Stefan