Question / Help Trying to use 3 cameras on the same scene

[Thomas5210]

I play Dungeons and Dragons with a group of friends every week and we just got into streaming not too long ago. I am relatively new to OBS, and I could not find an answer to this questions anywhere else.

I have 4 cameras total connected to my computer, and I was able to get all of them to work fine individually. However, I want to put 3 different cameras in the same scene so that all of the players are visible while we play. I can only get two to work at a time on a scene.

Is this a limitation of OBS, my computer, or just user error?

Thanks for any help anyone can give!

Log File: https://obsproject.com/logs/LjKiO0FLimI0Yu4f

 

[Harold]

The limitation is of your computer, and definitely NOT obs.

 

[carlmmii]

Specifically, the problem is with the available bandwidth over USB2.0. Each camera needs enough bandwidth to maintain the connection for whatever resolution and framerate it is operating at, and normally that means you're limited to only one camera per USB Host controller.

To get a better view of how your USB ports are set up, use USBview.

Managing USB bandwidth with USBView |r1ch.net

Find out how to make your USB devices perform optimally by moving them to less saturated controllers.

r1ch.net

 

[deFrisselle]

Yup, it a USB Bus Bandwith limitation I have a C270 and a C920 on one bus and a C922 on another
You'll likely need to get one or more USB back panels for the rear slots Check to see how many USB bus headers you motherboard has first