# Sampling from the inside
**URL:** https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600
**Category:** Feature Request
**Created:** [July 15, 2023, 8:21am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600 "2023-07-15T08:21:38Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@artchagur](https://forum.nomadsculpt.com/u/artchagur)
#### Post date: [July 15, 2023, 8:21am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/1 "2023-07-15T08:21:38Z")
Hello. I model jewelry. there is not enough Function (Zremesher) - to do retopology for smoothing and function (Project). And the most important thing is the ability to make a selection from inside the model so that it would be hollow inside, which will save metal. For all this, I go to (ZBrush) after (Nomad) - but I wanted to do it all in (Nomad)
I’m not a native speaker but I hope they understand me.
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### Author:  [@artchagur](https://forum.nomadsculpt.com/u/artchagur)
#### Post date: [July 16, 2023, 4:07pm UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/2 "2023-07-16T16:07:04Z")
I can’t figure out how to make this selection of material from the inside of the ring so that it is hollow inside, which will save metal. For all this I go to (ZBrush) after (Nomad) - but I wanted to do it all in (Nomad) is there any way to do it with (Nomad)? I would be very grateful for any ideas and help.
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### Author:  [@Holger\_Schoenischka](https://forum.nomadsculpt.com/u/Holger_Schoenischka)
#### Post date: [July 16, 2023, 5:10pm UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/3 "2023-07-16T17:10:09Z")
With the upcoming version 1.79, hollowing out should no longer be a problem.
[https://europe1.discourse-cdn.com/flex005/uploads/nomadsculpt/original/3X/4/7/47a2b072a6b5376acb0b3f9fd0c72fd6baec8231.mp4](https://europe1.discourse-cdn.com/flex005/uploads/nomadsculpt/original/3X/4/7/47a2b072a6b5376acb0b3f9fd0c72fd6baec8231.mp4)
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### Author:  [@artchagur](https://forum.nomadsculpt.com/u/artchagur)
#### Post date: [July 16, 2023, 6:02pm UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/4 "2023-07-16T18:02:26Z")
Thank you very much. This is not a bad option but there is no thickness control. It turns out somewhere thinner somewhere thicker. I lightened jewelry models like this in 2012. Now I do it too in Zbrush with more controlled thickness using insert brush Dynamesh and thickness. I wonder if it is also possible in Nomad. Control the same thickness throughout the model. For example, I need 0.8 mm everywhere. In fact, you need to offset the surface by 0.8 mm inside the model.
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### Author:  [@Holger\_Schoenischka](https://forum.nomadsculpt.com/u/Holger_Schoenischka)
#### Post date: [July 16, 2023, 6:12pm UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/5 "2023-07-16T18:12:42Z")
I think you only have the ZBrush solution for a long time. The only way to create a negative offset is to generate a second shell via the mask, but the exact thickness of 0.8 mm can unfortunately only be estimated…
I don’t think Stephane is planning anything in this regard … but hope remains.
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### Author:  [@artchagur](https://forum.nomadsculpt.com/u/artchagur)
#### Post date: [July 16, 2023, 6:14pm UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/6 "2023-07-16T18:14:39Z")
Thanks again.
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### Author:  [@RogerRoger](https://forum.nomadsculpt.com/u/RogerRoger)
#### Post date: [July 16, 2023, 7:02pm UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/7 "2023-07-16T19:02:36Z")
You should be able to do a mask and negative extract. It’s pretty simple and I’ve done it quite a bit without any issues.
Getting an exact thickness can be a little tricky but you can make a “ruler” in another program and use it in Nomad to get pretty dang close.
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### Author:  [@artchagur](https://forum.nomadsculpt.com/u/artchagur)
#### Post date: [July 17, 2023, 6:14am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/9 "2023-07-17T06:14:16Z")
And it would also be nice if the extract algorithm in the negative direction did not make such mistakes as in photo 1, but gave the result immediately as in photo 2.
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### Author:  [@Wandrinsheep](https://forum.nomadsculpt.com/u/Wandrinsheep)
#### Post date: [July 18, 2023, 3:54am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/10 "2023-07-18T03:54:01Z")
Side question, what are you using to show the finger touches
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### Author:  [@Holger\_Schoenischka](https://forum.nomadsculpt.com/u/Holger_Schoenischka)
#### Post date: [July 18, 2023, 4:17am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/11 "2023-07-18T04:17:58Z")
In Version 1.78 there is a new setting - show Indicator.
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### Author:  [@Wandrinsheep](https://forum.nomadsculpt.com/u/Wandrinsheep)
#### Post date: [July 18, 2023, 4:30am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/12 "2023-07-18T04:30:55Z")
That’s awesome, thanks
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### Author:  [@artchagur](https://forum.nomadsculpt.com/u/artchagur)
#### Post date: [July 18, 2023, 7:38am UTC](https://forum.nomadsculpt.com/t/sampling-from-the-inside/11600/13 "2023-07-18T07:38:41Z")
ipad pro 2022 has the ability to recognize the proximity of the stylus to the screen. If you do not touch the screen, but simply drive the stylus not high above it, you can see how the interface buttons are seen.