> For the complete documentation index, see [llms.txt](https://doc.realvirtual.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.realvirtual.io/components-and-scripts/scene-interaction/hmi-components-pro/hmi-marker.md).

# HMI Marker (Deprecated)

{% hint style="danger" %}
**Deprecated — replaced in realvirtual WEB.** This Unity uGUI marker is deprecated and is **not read by realvirtual WEB**. The browser-based 3D-HMI provides signal-bound status indication through the **WebSensor** component — Low / High / Warning / Error states, ISA-101 colors and a 3D overlay — which exports via `rv_extras` and renders in [**realvirtual WEB**](/extensions/realvirtual-web.md). Use `WebSensor` instead of `HMI Marker` for new work.
{% endhint %}

HMI-Marker are used to visualize the state of a signal. They have to be within the "Worldspace"-Section of a tab.

<figure><img src="https://260262196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FpYxFg97YnJX96UzNNTSd%2Fuploads%2Fgit-blob-6a146ea557c833fd2712dfc40d357b970cb503cd%2FhmiMarkerEx.png?alt=media" alt=""><figcaption></figcaption></figure>

The current prefab provides a simple cube as a marker object. But it is possible to customize this with a own mesh elements. The structure of the marker includes currently a game object "Icon" to map a user defined icon on the marker object.

<figure><img src="https://260262196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FpYxFg97YnJX96UzNNTSd%2Fuploads%2Fgit-blob-df3d903d421e80a2dc05ecaae5ef4d58bb06bf4b%2FhmiMarkerStructure.png?alt=media" alt=""><figcaption></figcaption></figure>

## Properties

<div align="left"><figure><img src="https://260262196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FpYxFg97YnJX96UzNNTSd%2Fuploads%2Fgit-blob-235e68642a52c16842378092a8f97523718e5d8a%2FhmiMarker.png?alt=media" alt=""><figcaption></figcaption></figure></div>

* Color On: Material which is active when the connected signal is high
* `Color Off:` Material which is active when the connected signal is low
* `ObjectTracking`: boolean wether the value object is placed next to a game object within the scene or not
* `TrackedObject`: game object within the scene which position is used to place the HMI value information
* `Offset` : Offset position to the object in up direction.
* `EnableGameObjectOnSignalTrue:` sets the defined game object active if the signal value is true
* `EnableGameObjectOnSignalFalse:` sets the defined game object active if the signal value is false
* `Signal Bool:` signal whose values are indicated by the marker


---

# 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 by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://doc.realvirtual.io/components-and-scripts/scene-interaction/hmi-components-pro/hmi-marker.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.