View Full Version : Animated lower third keys

07-16-2009, 12:43 PM
I am trying to incorporate a lower third animation which is over green screen that is generated by a seperate computer display. I have used this with a scan converter in a conventional switcher, and now need to incorporate this into a show using the Tricaster Broadcast.

I understand that the Tricaster allow me to use one of the free SDI inputs as a source to chromakey this over a DDR channel. but will I be able to use the IVGA as a source of chroma key animations that dymanically update as driven by my other computer?

This will need to be masked so that only the green portion of the other computer's display will be used in the Chromakey.

07-16-2009, 01:02 PM
Yes, you can definitely do this via iVGA.

Here's a tutorial of how to do it on VT[5]. The control interface is different between VT and Tricaster, but the structure of what is being done is the same.


07-18-2009, 10:02 AM
Hey Bill thanks for the info... it works just as you said.