---
title: "Denoiser"
canonical: "https://documentation.chaos.com/space/VRHINO/116130467/Denoiser"
format: markdown
---
This page provides information on the Denoiser Render Element.


## **Overview**

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## **UI Path**

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||V-Ray Asset Editor|| >** Settings **>** Denoiser**

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## **Denoising Engines**

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## **Parameters**

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> Macro (anchor)



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### **Example: Denoising Presets**


The example below illustrates how VRayDenoiser works using the presets. A purposely noisy render was set up using the Progressive Image Sampler Type with Render Time set to only 3 minutes to leave plenty of noise in the render. 



## **Denoising Animations**

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When denoising animations, it is recommended to use the [Standalone Denoiser Tool](https://docs-chaos.atlassian.net/wiki/spaces/VRHINO/pages/116130457). Unlike the denoiser integrated in the UI, the standalone tool can do frame blending for animations, which reduces flickering. The integrated denoiser only works on the rendered frame and does not take the next and previous frame(s) into account, like the standalone tool does.

To denoise an image sequence with **vdenoise **run the following command:

```
vdenoise -inputFile="path\	o\sequence_????.ext
```

where the question mark (?) replaces the digits in the sequence's file names.

  
For example, if the images in the sequence are named *anim_0001.exr*, *anim_0002.exr*, etc. and are located in the folder *c:\
enderoutput*, the full command will be:

```
vdenoise -inputFile="c:\
enderoutput\anim_????.exr
```

  
When that command is run, the sequence is read and for each frame, the specified number of adjacent frames are also considered. A new output image is then written for each frame.

### Recommended settings:

- **Mode** set to **only generate render elements**.
- **denoising engine** set to **Default V-Ray denoiser**.
- Render output set to **vrimg **or **multichannel exr**.

> ℹ️ The NVIDIA AI denoiser does not perform frame blending and will likely produce flickering when denoising animations.

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## **Notes**

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- Image denoising takes place after the frame has been rendered and will not show up until all rendering has finished.
- Textures or materials that have a purposely noisy look will not be considered "noisy" by the Denoiser. They will not be affected by the noise removal process.
- When using Progressive image sampler, the regularity of updates of the denoiser is controlled by the Update effects option in the *[Render rollout of the Settings menu](https://docs-chaos.atlassian.net/wiki/spaces/VRHINO/pages/116130097)*.