# Raytracing Quality Keyword

The Raytracing Quality Keyword allows you to provide a fast implementation of your Shader Graph to be use with ray-traced effects to tradeoff accuracy for speed, with the exception of [Path-Traced effect](Ray-Tracing-Path-Tracing.md) which will not be affected and use the default path.

## Adding the Raytracing Quality Keyword

The Raytracing Quality Keyword is a [Built-in Keyword](https://docs.unity3d.com/Packages/com.unity.shadergraph@latest/index.html?subfolder=/manual/Keywords.html#built-in-keywords).
To add the Raytracing  Quality Keyword to the graph:
1. In the [Blackboard](https://docs.unity3d.com/Packages/com.unity.shadergraph@latest/index.html?subfolder=/manual/Blackboard.html), click the plus (\**+**) button.
2. Select **Keyword > Raytracing Quality**. This creates the keyword and makes it visible on the Blackboard.

## Using the Raytracing Quality Keyword

To use this keyword in the graph, create a [Keyword Node](https://docs.unity3d.com/Packages/com.unity.shadergraph@latest/index.html?subfolder=/manual/Keyword-Node.html) by dragging the Raytracing Quality Keyword from the Blackboard to the graph or opening the Create Node Menu and searching for **Raytracing Quality** .

![](Images/RaytracingQualityNode.png)

### Available Ports

| Name          | Direction | Type           | Description                                                  |
| :------------ | :-------- | :------------- | :----------------------------------------------------------- |
| **default**   | Input     | Vector4        | The value to use for the normal Shader Graph. This is the default path Unity uses to render this Shader Graph. |
| **raytraced** | Input     | Vector4        | The value to use for the fast Shader Graph to use with the ray-traced effects excepth the path traced one.|
| **output**    | Output    | Vector4        | Outputs is the value which will be selected based on the context this shader graph is used. |