I do a lot of photogrammetry of mantises. The process is a pain in the ass and would come out a lot better if I could realistically focus stack the subjects. I saw a set up from gigamacro when I lived in SF that could be pretty easily set up to do it and rotate the model (instead of translate it like their current system does). The one guy there had actually started messing around with it but that was 4 or more years ago and I don't think he ever did anything with it.
I use agisoft and meshmixer predominantly. Most of this is self taught so there's probably plenty wrong. In terms of sparse and dense clouds I refine the sparse cloud to remove errors, optimize the cameras, and then generate a dense cloud to make my mesh.
Here's my sketchfabb. There's a three sadly low resolution models.
https://sketchfab.com/reagandpufallImage is a 3D print of model (what I'm actually doing all of this for).
>>3288601There is software that tracks objects in 3D for creating 3D movies. None of the software we're talking about can do it.
>>3288693Ring light might help. Super flat light works wonders. I also paint all of my subjects matte grey to avoid highlight and transparency issues.
>>3288757I generally use in the low hundreds....
