-
Export Alpha?
Googling tells me nothing. The reference manual says I can by turning on the “Export Alpha” checkbox. Needless to say, there is no such checkbox. Sooo……
I have my greenscreen clip with the green keyed out and an alpha output. What codec/format do I use to export it with the alpha channel intact?
Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
DaVinci Resolve 14.2 -
24 Replies
-
[Duke Sweden] “The reference manual says I can by turning on the “Export Alpha” checkbox. Needless to say, there is no such checkbox. ”
It’s a magic check box that appears when you select a render codec that has an alpha channel. Try DNxHR 444 10 or 12 bit.
-
ProRes 444 and ProRes 444XQ can also both support Alpha channels, but only on Mac OS and on the Linux Advanced Version of Resolve.
-
As it happens I tried both! No luck. Also tried AVI and Quicktime.
Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
DaVinci Resolve 14.2 -
Do you mean the alpha checkbox didn’t appear or it did but it failed to create a file with transparent alpha on export.
-
Page 1213 in the manual. Works for me.
-
It didn’t appear.
Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
DaVinci Resolve 14.2 -
Not this time, Ahlfors!!! I went to the manual. I found page 1213 by searching for “Alpha export”. I already mentioned above what it says. But there is no alpha export checkbox to check. I’ve tried all the codecs except the obvious ones like mp4.
Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
DaVinci Resolve 14.2 -
Actually yes. This time as well. Bolded the important part if you missed it.
“In either case, you may only render alpha channels out when you render individual source clips to an RGBA format”
-
I read all that! Where do I render it in RGBA format? I don’t see that anywhere on the Deliver page or in the master settings.
Upon further research I have determined that exporting with an alpha channel is an incredible pain in the ass. I would just do the whole composite in Resolve, but now there’s another headache, masking out just a portion of an image so I can sandwich my greenscreen footage between the two images.
Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
DaVinci Resolve 14.2 -
Select “individual clips” from the top of the render settings window. Then when you choose a format that supports an alpha channel the render alpha box will magically appear under the resolution drop down menu.
Reply to this Discussion! Login or Sign Up