---
title: "Image Format Options"
canonical: "https://documentation.chaos.com/space/VMAYA/111745161/Image%20Format%20Options"
format: markdown
---
This page provides information on the Image Format Options dialog in the V-Ray Common tab.

 

## <span style="color: #000000">**Overview**</span>

---

## <span style="color: #000000">**Parameters**</span>

---

 

---

 


## <span style="color: #000000">**Notes**</span>

---

> Macro (anchor)

<span style="color: #252c2f">**[1](https://docs-chaos.atlassian.net/wiki/spaces/VMAYA4EDIT/pages/111182024)**</span><span style="color: #252c2f"> - You can set DWA compression level by adding an extra EXR attribute </span><span style="color: #252c2f">*dwaCompressionLevel*</span><span style="color: #252c2f">, for example </span><span style="color: #252c2f">*dwaCompressionLevel=40.0.*</span>


![image](media://985dc3ba-e0f3-4623-86bd-3e7f8315761c)

Or you can<span style="color: #252c2f"> use the following MEL command:</span>

```
setAttr -type "string" vraySettings.imgOpt_exr_attributes "dwaCompressionLevel=40.0"
```

> ⚠️ You should use a decimal point to export a floating-point attribute. Without a decimal point, dwaCompressionLevel will be an integer attribute and OpenEXR will ignore it.

> Macro (anchor)

**[2](https://docs-chaos.atlassian.net/wiki/spaces/VMAYA4EDIT/pages/111182024)** - W<span style="color: #172b4d">hen included in a multichannel EXR, Sampler Info and Cryptomatte render elements are always saved with lossless compression. ExtraTex has its own parameter for disabling lossy compression like DWAA/DWAB.</span>