I haven’t been personally flying our drone so much. but its basically been put into orbit mode. and having timelapse function going. and then a number of manual shots as well. (the ones from the same spot aren’t ideal)
I do need to look into to some flight control software and try some grid flights once i get a chance. let me know if some recommendations. I’m thinking about running a couple of offset grids, face the camera 45 degree down. and then maybe running it a couple of times offset and facing different directions.
I also do heli photography as well. which is all angled.
I do think it has be thought about differently to the old way of doing it though. since we aren’t trying to make just a nice aerial photo that stitches well. its making a true 3d model. that just happens to be easy to take a top down view once its done.
I almost think about it as if you were taking the photos for a small object, then enlarge that to do a big scene.
are you flying a quadcopter or a plane?
if you have access to the site again, you could try a few orbits at 40m, 70, 150m (if its a large site maybe you need a few at each height that overlap). etc… just to help stitch all your existing photos together.
also pay attention to how much ram is being used. if its getting a error for out of memory. easy fix is to have a pagefile large enough.