# Post Processing

If you already generated an image you can adjust the final look by applying various affects. All these effects can be controlled in the *Post Processing* node. If you click on the *Post Processing* node and the *Render Image* button:

<figure><img src="/files/ARaiybs0YQzjGRSvW71Q" alt="" width="136"><figcaption><p>Render button</p></figcaption></figure>

then you can see how the changes that you apply to the *Post Processing* node will affect your image. You can see a quick overview of the various options and their effect on the final render below.

<figure><img src="/files/JO7gikb7cgn5tJUWUM0B" alt=""><figcaption><p>Post processing options</p></figcaption></figure>

The main options of post processing are:

* **Exposure**: Adjusts the exposure (brightness) of the image, with negative values making the image darker and positive values making it brighter.
* **White Balance (White B.)**: Adjusts the color temperature of the image to achieve accurate colors, where lower values make the image cooler and higher values make it warmer.
* **Tone Mapping**:
  * **Tone Mapping Type**: You can select the algorithm to use when adjusting the tonal values of an image.
  * **LUT (Look-Up Table)**: Applies a specific color grading to the image for visual style.&#x20;
* **Background**:
  * **Transparent**: Makes the background of the image transparent.
  * **Composite**: Adds a background color to the image.
  * **Background Color**: Here you can select the background color that is used in compositing.


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