How to use Grafias with your Blackmagic Atem to show animated graphics to your live audience.
Whether you've got an Atem Mini, ATEM Mini Extreme ISO or an Atem Constellation 8K, you can use Grafias to render graphics in real-time to your audience. We'll assume you are running Grafias on a computer with a HDMI output and we start from there. You can also use Grafias with Fill and key.
Start by connecting your laptop or computer running Grafias to your ATEM switcher. Typically this is done by using a HDMI cable from the computer and attaching that to one of the inputs on the ATEM.
You'll want to enable "Extended Desktop" mode on this computer as you will not want to mirror your displays.
Open an Rundown within Grafias, on the menu up at right View Output click and select the output. It will open in as a new tab. Drag the tab window on the extended desktop display (you'll see the window appear on your ATEMs multiview. Then make that window fullscreen. In Chrome it`s F11.
Select Luma Output
Open up the ATEM Software Control, and navigate to the Palettes on the right. Expand the Downstream section and open the Luma tab.
Set both the Fill Source and Key Source to which ever ATEM input your Grafias laptop/PC is connected to.
Uncheck Pre Multiplied Key
Be sure to uncheck Pre Multiplied Key at this point as you will have some strange effects later.
Our system is all set up, now just turn on Downstream Key to see the animated graphics in action.
DSK 1 in active and will show animated graphics
For most graphics the 7.6% on Clip and 70.3% on Gain will be good. Setting the Clip to a low number will remove the darker parts of the image. Playing with the Gain will determine how much of that dark image is removed.
You can also follow this video guide
Follow the steps from Luma 1 - 3. Remember to choose the Chroma (Green) View Output for your Grafias Rundown.
Set the Fill Source to which ever input your Grafias laptop/PC is connected to.
Be sure to set theright Chroma Sample color to green by opening the Chroma Sample option and sampling an area.
ATEM Software Control with the right things selected
Our system is all set up, now just turn on Upstream Key 1 to see the graphics in action.
Upstream Key 1 activated