# Anatomy Rig Animate Muscle Lines

This node defines the muscle flex animation.  You will see a few different colors for the flex parameters.  

White - flex value - 1.0\ <mark style="background-color:yellow;">Yellow</mark> - flex value - 0.5\ <mark style="background-color:red;">Muscle Colours</mark> - flex value - 0.0

{% hint style="warning" %}
This node is a work in progress and we will likely be giving more options on visualization soon.
{% endhint %}

### Parameters

**Frame Offset** - For the time being our flex system is primarily based on a look-ahead frame value set to this parameter.


---

# Agent Instructions: 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:

```
GET https://docs.procedural-anatomy.com/simulation/simulation-nodes/anatomy-rig-animate-muscle-lines.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.