Blackmagic Design ATEM Mini Manual De Instalación Y Funcionamiento página 36

3 Hold down the 'command' key on a Mac, or 'control' key for Windows, and click on the
layer thumbnail for your graphic. This will generate a selection of the color channels'
opacity values in your image. Their opacity determines the transparency of the graphic.
4 Go to the adjoining 'channels' panel and click on the 'save selection as channel' tool.
You will now see an alpha channel appear underneath the RGB color channels.
The alpha channel contains a greyscale version of the combined color channels
in your graphic. Don't forget to click on the alpha channel's 'eye' icon to make
sure it is selected so it will be included when the TGA file is saved.
Using ATEM Software Control 36