[Solved] Looking for the right "repair" tool / brush

[Kayess]

hello everybody,
 

I am new to 3DC and I am looking for a way to use the voxel tools to repair and cleanup 3d scans.
Now, I got a mesh and the problem is, that it has some holes (camera could not look deep enough inside some cracks/holes)
Is there a brush or some other tool(s) within 3DC that allow to "just add a thin layer of clay on the backplane"

kind of hard to explain, let me try:

on the image you can see the backside of my mesh - this was created automatically in Realityscan to make this "watertight":


what I want now, is a way to close the hole on this backplate but without filling clay overt to the front and affecting any other
"plane" than the backside.

Something like the "planar" brush maybe - but not for cutting, instead it should "fill along a defined plane".
I tried most brushes, but seems non does this job. Also tried "Fill voids" - but no filling of this either...

I would appreciate any ideas and help on how to do this. I am counting on 3DC to become my go-to-app for
all scan cleanup stuff and some sculpting... and quick texturing... an maybe (Auto)retopo...

Cheers!

[Carlosan]

There is a Geometry->Close Holes command that I think is capable of closing holes that make the geometry non-manifold.

On Sculpting Surface Mode there's also a Fill Holes tool that does a similar thing. 

[Kayess]

Hi,

I took a closer look and the hole is not open or caused by missing tris - it is clean, like a hole in a donut. 
So this could be the reason, why automatic close hole functions may not doing anything. 

ok - so to fill this, I was thinking of using other volumes like a small sphere or cube placed just a slightly bit inside the hole and do a Boolean join. 
 

I found a brush, that kind of draws volumes or was it surfaces by pulling out just a rectangle. This brush creates a thin layer of geo. But I can’t remember what brush this was. 
 

so I guess there is no „fill or sculpt just planar to a selected face“ brush, right? 

Edited May 3 by Kayess

[Carlosan]

There are some tools that can be helpful

 

[Kayess]

Thanks a lot ! the 1st video has the solution to my problem