> ## Documentation Index
> Fetch the complete documentation index at: https://docs.spine.altician.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Volume Settings

> Adjust opacity and view type for 3D rendering

## Volume Opacity

The **Opacity** slider (0–100%) controls how transparent the volume rendering appears. Lower values make the volume more see-through, useful for viewing internal structures or overlaid meshes.

<img src="https://mintcdn.com/altician/0YBh5K6l-27QqsAD/images/volume-opacity.png?fit=max&auto=format&n=0YBh5K6l-27QqsAD&q=85&s=c4e0b6ccd2c8f1b75903696e0e7fcd19" alt="Volume opacity control" width="320" height="300" data-path="images/volume-opacity.png" />

## View Type

Switch between rendering modes in the **Display** section of the right panel:

| View           | Description                                 |
| -------------- | ------------------------------------------- |
| **Raw**        | Original MRI intensity values               |
| **Normalized** | Histogram-equalized for consistent contrast |

<Tip>
  Use **Normalized** view for consistent visualization across different MRI scanners and protocols.
</Tip>