How to use alpha-channel video in Vatom Spaces
Using VP9 encoded WebM Video Format, videos with alpha channels can be displayed with transparency in Vatom Spaces.
Video files with an alpha channel like MOV files in Prores 4444 can be converted to .webm and retain transparency during playback. Compressed formats like MP4 do not retain Alpha Channels.
Apple Safari will NOT display WebM transparency.
If transparent video is critical to the experience, we recommend enabling “Check Browser” in File > Settings > Browser Settings and enabling an “Unsupported Action”, a Warning or Lockout to prevent users from entering with Safari.
Adding Transparent Video to Spaces
Use the standard Media Plugin to playback .webm videos in Vatom Spaces. Simply create a media screen and choose your webm file. If it is not already in your Storage it will be added to the Media Folder.
For Transparent Video, you must check the "Transparent" checkbox in the Video Destination Component of the media screen.
Exporting Transparent Video for Spaces
WebM Plugin for Adobe Premiere Pro & Adobe Media Encoder:
When exporting Transparent Video from Adobe Premiere Pro or Adobe Media Encoder, you must install the WebM Plugin from the links above. WebM is not a default Format available in Premiere or Media Encoder.
Ensure your video has no background by toggling "Transparency Grid" view. In Premiere, choose the Wrench icon under the Program Monitor, and select Transparency Grid.
Export Media from Premiere Pro
- Choose the Format 'WebM'
- Open the Video settings dropdown
- Under Codec Settings, choose Codec: VP9
- Enable the "Include Alpha Channel" checkbox
Alternate Converter Options:
- Shutter Encoder - Free Download. Use the Output Codec VP9 to .webm and in the Advanced Features dropdown, choose Enable alpha channel
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