Update: Chirs Smith himself sent in a few notes on how some of the more obtuse options work. Thanks Chris!
Target depth offset is if you are using DOF you can offset the target depth so it may focus on the hood of the car for example even though the car’s axis center is in the middle. So unless you are using DOF, that parameter won’t do anything. I added it when somebody was asking how they can focus on something closer or further than where the target axis was.
seed: The seed to me is actually the coolest part. All of the random functions derive from that seed value. So changing that seed just one number will completely change the performance of the camera. When I use action cam, I’ll loop my scene and “shop” through the different seeds until something really cool happens.
For example, I’ve been working on a spec car spot (and dragging my feet). Actually docucam and actioncam were made for this spot. You’ll see that in the action cam shots, the cam just misses some pylons and does cool moves. I didn’t really choreograph it, i just set the settings in the ballpark and went thru seeds until something really cool happened.