New user, with a couple of questions

[AlexM74]

Hello everybody!
I've used OBS for a while just to record screen, and now I'm going to start to do some online lessons and I'd like to use it to split between sources and to send the output to google meet with the virtual webcam.
I have 2 problems
1) (maybe not a problem), I cannot use the same webcam twice in 2 different scenes (one full screen and the other small and overlayed to a presentation). When I add the second one thefirstone freezes. Is it normal?
2) I've tried different resolution but I always get a wrong size in the output: I put on a scene a screen captured with a full screen presentation, and I see it correctly on the preview. Then I send it to the virtual cam, to google meet and I watch it on the device of another user connected to the meeting, and it's "larger" than the screen....any suggestions?

Thanks in advance

Ale

 

[AlexM74]

I’ve found a way to solve the first point: I create a scene with the full screen camera and then in the other scene I put the first scene and not another camera instance

 

[AlexM74]

A lot of test but i couldn't solve the second problem. The webcam area visible in meet (or also in other software) is smaller than OBS output, so a full screen presentation loses a slice on the left and the right.
However is not a problem anymore because che resolution and the sharpness is much worse on the "webcam" than a shared presentation, so I'm forced to use this second option

 

[koala]

You can a add as many instances of a webcam source by adding it with the "add existing" option. Don't use "add new". If you need to use different filters or different crops between the different webcam instances, don't apply the filters to the sources directly. Instead, put a webcam source into a group and apply the filters to the group. With cropping, don't use the crop filter with this. Instead, hold down the ALT key and drag the borders of the source inside to crop. This is local for one instance only as well, not global for all sources like the crop filter.