How to have your stream capture video under your background image?

[cuffy44]

Hello everyone, Could I have assistance on how to perform the below please?

As shown in the Indiana Jones image example, There is a video source stream that is tucked under the image or with the help of some 'shadow' filter with rounded corners on all 4 edges.

Would someone please explain what plugin or how to achieve this in OBS?

If anybody has any insight, I'd thank you if you could please share!
Thanks for reading!

 

[PaiSand]

Make an png image with transparency and round corners.
In OBS add the game source you want. Now add an image source. Notice the image source is on top of the game source. As long as the image is on top in the list of sources it will always stay like that. Now, select the game source and change its size to acomodate it within the space you left for the game.
In the case you showed the game is in 4:3 resolution, so the transparency space is in this resolution.