Does the video card play any part with the performance of recording or is it basically confined to cpu-usb-hard drive?

AFAIK, recording is mostly dependent on CPU and drive speed, and of course having an adequate number of USB controllers for sufficient bandwidth. A fast graphics card might help playback performance but I don't think it has any impact on recording.

Tracking, on the other had, gets a huge boost in performance if you have a good graphics card with a fast GPU.

As mentioned in the other thread, because recording is less demanding on graphics processing, some users will record with a laptop and track with a desktop. For me, my laptop was inadequate for dual Kinect capture, so I do both steps with a desktop now.

Tip: My desktop is located in a different room from where the Kinects are, so I run daisy-chained repeater cables to the Kinects and operate the computer remotely using a tablet PC with the free version of TeamViewer. This has been convenient because the tablet PC is on Wifi and I can control iPi Recorder from anywhere in the room.

G.

_________________
Greenlaw
Artist/Partner - Little Green Dog | My Demo Reels (2013,) (2015,) (2017,) and (2019)

Watch a one minute excerpt on Vimeo now!

Confirm Greenlaw's answer. Graphics card's performance does not affect the recording process.

Does the new 'evaluate background' option mean you don't need to have two seconds without the actor in the beginning of your video? Because we assumed that would be the case but we ended up with the actor in the background.

Yes, separate stage for background evaluating in Recorder 2 eliminates the need for an "empty" beginning in action video. Evaluated background is stored within iPiVideo file.
Important. Don't forget to reevaluate background if there are some changes made to capture space environment since background was evaluated (some stuff moved, lighting conditions changed etc). In future we will introduce automatic warning on significant background changes.