Photoshop CS6 Video – Render Transparent Background and Import Into After Effects CS6
Render Settings for Preserving Transparency
Producing Pre-multiplied Video in Photoshop CS6
So you want to produce a video in Photoshop and export the results? This is simple enough, but what if the video is a 3D render and you need to preserve transparency?
This video provides some useful guidelines. The video doesn’t need to be a 3D render, it just needs to have some transparency. The video also looks at how to import the video into After Effects.