Inputs

The same idea as Input, Source, or a camera input on other tools.

flowchart LR
  In["Input"] --> Sc["Scene"]
  Sc --> MU["Mixing Unit"]
  MU --> Out["Output"]

	Role
Input	A video source: camera, file, NDI/OMT, colour, and similar
Scene	Inputs stacked as layers
Mixing Unit	Puts Scenes on Preview/Program; CUT, AUTO, or T-bar switches them
Output	Sends the chosen source over NDI/OMT

An Output’s source can be an Input, a Scene, Mixing Unit Preview/Program, or a Multiview. The default is Mixing Unit Program.
Inputs can also sit directly on a Mixing Unit or an Output.

Kinds

Add them from Inputs in the main window.

• Colour / bars / black
• Still
• Video file
• UVC (capture device)
• NDI/OMT
• Mix (Mixing Unit Preview/Program, or a session Multiview, plus a 1–8 frame buffer)

A Mix Input is a delayed reroute of an existing bus. It reads N frames ago from the FrameDelay ring and does not add a swapchain. The same Mixing Unit cannot use a Mix Input that targets itself. Nested M/E (Mix of unit A on unit B) is stable with that delay. Mix audio is a delayed copy of one selected Audio Bus, or silence if None.

Use an Input as a Scene layer, a Mixing Unit bus, a Multiview tile, or an Output source.
Input preview is a GPU readback thumbnail and does not use the video output destination window limit.

Tags

An Input can have more than one tag. Tabs above the list switch All, each tag, and Kind (Colours, Still, Video, OMT, NDI®, Video Capture, Mix). Right-click the tab strip to add, rename, or delete a tag.

Detail is in Scenes, Mixing Unit, and Outputs.