Nothing simpler than that. Just configure a
Video Input Device
Video Input Devices are used to capture video streams in Smode
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and then use a
Video Input
Extract the image from a Video Input Device
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inside your
Compo
Composite 2D Layer, Shape layer and 3D Layer together. [Ctrl] + [Shift] + [N] to create a new composition after opening Smode
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. Well as a demonstration is better than a long speech, here is a tutorial: