[FEATURE REQUEST] Fill Cavities

[RebelKeithy]

Is your feature request related to a problem? Please describe.
When hollowing a model in the slicer, sometimes there are small cavities that can't use drain holes.

Describe the solution you'd like
The program should be able to go through layer by layer and find cavities that don't have holes, and fill these cavities with white pixels.

Describe alternatives you've considered
No easy alternatives to this except leave the cavities filled with liquid resin

Additional context
I realize this isn't a simple feature request. My initial thoughts on how to do this would be:
1: Flag all black pixels on the border of the 3d space
2: For each black pixel that is not flagged:
3: > If it is adjacent to a flagged pixel, flag it
4: If a pixel was flagged in the last step, go to 2
5: All black pixels that are not flagged are set to white

[sn4k3]

I don't think i full understand the problem, can you send a image sample? Note that i'm not used to resin printing, i never own one and real problems on resin printing are all new to me.
The solution you indicate can be solved using the mutators already in app

[RebelKeithy]

Here's an example of the problem. I've hollowed this model with chitubox and have a cavity here that doesn't have a drain hole. When printed it will be filled with liquid resin, so if anything happens to crack the print there could be hazardous resin leaking out.

[sn4k3]

As i understand every drain hole must be done by user & inspection, chitubox hallow doesn't generate them right? On that case you don't want do a drain hole on model but just fill that area correct?
I can start thinking over that, a hallow area detector...

[RebelKeithy]

Yes, that area is so small (about 1.5mm wide) there's no place to make a drain hole.

[sn4k3]

I will take that into consideration and good feature to have.
Today i will release a new version which fix cbt and cbddlp file save, if you were saving files for that formats with AA > than 1 please discard them and redo with new version

[sn4k3]

Also consider using PrusaSlicer instead o chitubox, way better...

[sn4k3]

https://github.com/sn4k3/UVtools/releases/tag/v0.5.2