Keying graphics over motion background using Keynote

[Jason Shane]

Thanks.

We have a few switched sources hitting the spyder too. I was not sure if the media backgrounds could be imported into the spyder or not. Either way, it sounds like I need to find a “server” that can build graphics with alphas. The issue with keynote is that the animations being used are near impossible to key. They were not made to be keyed, rather overlayed over the bottom layer and there is a lot of transparency in them. If they had an alpha channel built in to the program or effect, then they would key fine.

Oh well– I am out of time, so I am pushing forward with keynote for this year and will look into everyone’s comments in my post meeting so I can improve this next year.

Thank you all
Jason

[Thomas Leong]

Just a suggestion for you to try for next year: Dataton Watchout.

Works on a node basis: Master controlling Slave Display(s). The Master is called the Production PC, and this is where all work is done. To connect to Display PCs one needs a licence each for the Production and Display PC. However, the ‘demo’ is fully operational (save, etc.) without the need for a USB licence key except for networked fullscreen display to the Display PC(s). Alternative, of course, is rental (hint: Walter has the system and licences).

It is a both a media player/server and realtime multi-layered compositor with blend modes so try using the blend mode ‘screen’ or ‘multiply’ to your keynote files and the motion background should be visible through the elements in your keynote file. The realtime compositing/playback comes from using the power of the graphics card, so no rendering is required.

Thomas Leong

Edit:
Forgot to mention that the Keynote would have to be captured in via a capture card as ‘Live Video’ in Watchout with eg. Datapath, Magewell or Decklink capture card, or as a ‘Computer Screen’ via Ethernet link which needs vnc to be installed in the Keynote computer.