Question / Help Alpha channel Video Support?

[stiffmeister12]

Can OBS for MAC support Alpha Videos? I want to add a bunch of fireworks going off on my stream with a hotkey & I have a alpha video doing so. Thanks.

 

[TickleMeOzmo]

Yes. Supports Apple ProRes 4444 and YUVA420p Codecs.

In English: You can use an Alpha-Enabled MOV from Apple Motion or Final Cut Pro or an Alpha Enabled .webm file. Alpha GIFs and PNGs work as well.

 

[BassTony]

How about partial alpha? It seems to me that when something on screen has an alpha of something from 1% to 99%, it's going to be e.g. 1% of the color in video and 99% black instead of 99% of the underlying video.

 

[CBMoGraph]

How about partial alpha? It seems to me that when something on screen has an alpha of something from 1% to 99%, it's going to be e.g. 1% of the color in video and 99% black instead of 99% of the underlying video.

I've had no problems with that when I render a ProRes 4444 file from After Effects. Works great for Lower Thirds, any motion graphics, glows, etc. Just make sure the alpha is premultiplied, not straight.