Answered
how to render Alpha + RGB with H.264 format
How can I render out an mp4 / H.264 with an alpha channel? I want to make an animated overlay for my twitch broadcasts and hopefully for other people but I can't even get it to be transparent. 
NexxiaaCorrect answer
Participant
Jun 29, 2018 11:26 PM UTC
Ok, after 6 hours of messing with this I FINALLY have a solution! (I deal primarily with Twitch graphics and OBS) This confirmed works on OBS
**If you don't have Quicktime, download and install it**
1) Make the animated overlay as you normally would
2) On the Render Screen from the drop down select Photoshop Image Sequence, then select PNG
*make sure you make a separate folder and designate it, a 10 sec animation = 240 still images*
3) Open Premiere Pro
4) Select all of the PNGs that were created, drop them into the project window then drag them all onto the timeline
*timing may be off, if it is select all images, right click, Speed / Duration and mine looked fine at 00;00;00;02*
5) File>Export>Media
6) Format: Quicktime Preset: GoProCineForm RGB 12-bit with alpha, change output destination to preferred folder, under video settings, up it to max
6) Click Queue, this will open Encoder
7) Click the Play Button
8) Open the generated .mov file in OBS to make sure it works
It's definitely not the most direct or easy method, but it's the only way I could get it to work even after reading forums. Hope this helps
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