Blackmagic Forum

We are not sure what happens but it has been impossible to create a video with alpha transparency that Vmix could use, it is simply impossible. no matter what format or codec you use it is really impossible. the transparency is visible in after effects and premiere but Vmix can only see the alpha if this is rendered from adobe or another application. The problem becomes worse when we realize that you cannot render the alpha from the native transitions of resolve, it is simply impossible and at the same time incredible that something that seems so simple is not implemented yet. I hope the development team will check this.
What the hell happens with the alpha renders and with those transitions?, we love DR an Blackmagic but we had to go back to using adobe for this!

Improvements have been made since 16.

Try updating to the current 17.3.

im already on the last version! i dunno what is wrong between VMIX and Resolve!

If you want to output a file with Alpha, you will have to use a saver node in Fusion.

I do not believe there is any way to output embedded alpha from resolve.

Fusion doesn't have the option to export compositions to file so we are screwed, thanks BMD but I'll stick to AE in the meanwhile

I don't know vmix, but

the transparency is visible in after effects and premiere

implies that this is not really a resolve issue


although i agree that exporting video+alpha from resolve is often not exactly a day on the beach. for example ,as you said, with standard transitions its impossible.