In this tutorial, we’ll be covering a bunch of free things you can do to improve the quality of your photogrammetry. 3D scanning isn’t easy, and sometimes you might get discouraged at why things don’t turn out well! That is where this video comes in handy.
https://dev.epicgames.com/community/learning/tutorials/7618/capturing-reality-free-ways-to-improve-your-3d-scans