Master opacity control

[mvanderkruk]

Hi everyone,
I have been using OBS for a while now, but there is still one situation which I cannot find a solution to.
The setup: I use OBS to display background pictures / videos in a theatre during a show from our dance studio.
Output is using a Ultrastudio Monitor 3G with direct SDI out to the projector.
Each dance has its own background video/image and also some announcement videos are used during the show.

At the end of each song, as the audience is applauding for the kids, the lights are faded out gradually. I would like to be able to follow this fade out from OBS to make de background image/video disappear slowly. Currently I use programmed fade outs which last 1 or 2 seconds, but if the light fades out faster or slower, I cannot change the pace of the OBS output.

Is there a way for me to control the "Program" output opacity in OBS?
Because I use about 48 scenes, adding a filter in each scene and controlling this is simply not practical.

I hope there is someone who can help me with this situation.

 

[bcoyle]

what i do in my app (KAS-AI) is to create a scene called "overlay_designer". In that scene , i create a "group". in that group i have a source called "overlay_black . This is an image source set to a black jpeg. I place a copy of this group at the top of all my other scenes.
Because a group behaves so that if you change the capacity of the overlay_black source in the "overlay_desgner" scene it changes all scenes. So you only have to control the one source "overlay_black" and it will not matter if what other scene you are on, it will change that too. You only have to control the opacity of that one source. Since the group is always at the top of each scene, it will control the opacity of the sources in the stack below. If you set the opacity to 100, then that source will be 100% black, and 0 would be clear and you would see the programming below the stack. A hot key (i think) could be set up to control this one source. It works very well for me. Hope that helps

 

[bcoyle]

you can see that i have a lot more stuff in my groups, but the "group_overlays" appear in all my scenes and controlling the "overlay_black" is the one stop UI control.

 

[bcoyle]

This is also how i control logos and lower third text.

 

[bcoyle]

you will also see that there are some soures above the black source. This allow things like logos to stay on even when overlay_black is opiate