> For the complete documentation index, see [llms.txt](https://captivatehelp.newbluelive.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://captivatehelp.newbluelive.com/set-up-your-production/chapter-index-7/use-with-vmix.md).

# Use Captivate with vMix

Use this setup when you switch and produce your show in vMix and want Captivate to supply the graphics. Captivate sends keyed graphics over the network, and vMix composites them over your program as an overlay channel.

## When to use this setup

* vMix is your production switcher or encoder.
* Captivate provides lower thirds, scorebugs, sponsor graphics, or other overlays.
* You want a clean network connection rather than capture hardware.

## Recommended path

Send Captivate to vMix over **NDI with alpha**. vMix discovers the Captivate NDI source on the local network and uses it as an overlay input with transparency.

Alternatives, in order of preference:

* **OMT with alpha** — the same idea over Open Media Transport, when your vMix system is set up for it.
* **SDI key + fill** — only when the machines are connected by SDI capture hardware rather than the network.
* **Virtual Webcam** — a fallback for a single opaque feed; it carries no transparency, so use it only when an overlay isn’t needed.

## Alpha Key

Turn **Alpha Key** on. Captivate is a graphics contributor here — vMix does the compositing — so the output needs to carry transparency. If vMix shows a fringe around your graphics, check the **Premultiplied** setting in [Set the project format](/set-up-your-production/set-up-your-project.md).

## Set up overview

1. In Captivate, set the project’s video format to match your vMix production, and turn **Alpha Key** on — see [Set the project format](/set-up-your-production/set-up-your-project.md).
2. Enable the **NDI** (or **OMT**) output from the **Program Out** menu.
3. In vMix, add the Captivate NDI (or OMT) source as an input.
4. Place that input as an overlay channel above your program, and confirm the graphics key cleanly over video.

## Detailed setup links

* [Output graphics with NDI](/set-up-your-production/chapter-index/output-graphics-with-ndi.md) — the exact NDI output settings.
* [Output graphics with OMT](/set-up-your-production/chapter-index/output-graphics-with-omt.md) — the OMT output settings.
* [Set the project format](/set-up-your-production/set-up-your-project.md) — resolution, frame rate, and Alpha Key.

## Related

* [Add graphics to vMix productions](/solution-recipes/chapter-index/vmix-recipe.md) — the end-to-end recipe.
* [Choose how Captivate fits your production](/set-up-your-production/how-it-fits-your-production.md) — the decision hub.
* [Production setup scenarios](/set-up-your-production/chapter-index-7.md) — other systems Captivate feeds.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://captivatehelp.newbluelive.com/set-up-your-production/chapter-index-7/use-with-vmix.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.