live key and fill capture

[Myngus]

Hi,

I have a graphics generator outputting HDSDI Key (alpha channel) and Fill (fill channel) on separate outputs. This normally gets combined in our production switcher to give us transparent overlays.

I'd like to bring this into Watchout in the same way, to give me live inputs with alpha channel, without having to use Luma or Chroma Tween tracks.

Does anyone know if this is possible?

 

thanks

 

 

[jfk]

Hi,

I have a graphics generator outputting HDSDI Key (alpha channel) and Fill (fill channel) on separate outputs. This normally gets combined in our production switcher to give us transparent overlays.

I'd like to bring this into Watchout in the same way, to give me live inputs with alpha channel, without having to use Luma or Chroma Tween tracks.

Does anyone know if this is possible?

 

thanks

 

 

Yes, it is.

Of course, you will need to capture two HD-SDI signals at the same time,

which is easily possible.

 

Then place each one as cues on adjacent layers,

place the key signal on top of the normal signal.

 

On the Key cue, in advanced tab, select

Suppress Rendering (for use as Mask only)

 

 

On the normal signal cue, in advanced tab, set 

Masked by layer above: Alpha Mask

[Myngus]

awesome. thanks very much. I'll give it a go.

[Myngus]

for 2 simultaneous feeds (4 channels), would you recommend the Blackmagic Decklink Quad for this, or is there anything newer and better you like?

 

cheers.