Using only video output to connect to the switcher (chroma key usage)
Some production switcher are more mixers for video content. They have limited number of inputs, and you cannot configure an external CG's video / key inputs. If this is the case, you will need to use the chroma keys feature of the switcher in order to create a key channel substitute. (A chroma key will take out all the black areas of your graphic and make them transparent.) If this is sufficient, then this option might work. If you have no available inputs for a key channel b
The Compix system is not keying properly
When the CG is not keying properly, graphics will look washed out, flattened with no transparency, or won't display at all. Take a look at the output of the Compix up on Preview. If both the video and key output look fine on Preview, the DSK or keyer is not configured properly. Make sure the cabling is in working order. BNC cables can easily get damaged if not properly coiled. If you do not see anything on Preview, or it looks distorted, try connecting the Compix system strai