---
title: "Corona Preferences"
canonical: "https://documentation.chaos.com/space/CRC4D/125049325/Corona%20Preferences"
format: markdown
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This page provides information about the settings in the Corona Preferences window. 


## **Overview**

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## **General Preferences**

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> ℹ️ Due to technical constraints, the **# of threads override** in the *Interactive Rendering* section cannot exceed the **Number of threads** value defined in the *General* section.
> ℹ️ 
> ℹ️ If you find you cannot increase the override to your desired value, ensure that the **Number of threads** in the *General *section is set to its default of **0** (which utilizes all available logical processors) or a sufficiently high custom value.


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## **Physical Material Defaults**

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## **Interactive Rendering (IR)**

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## **Output Autosave**

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> Macro (anchor)



## **VFB Settings  **

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## **Render History and A/B comparison (VFB)**

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## > Macro (anchor)



## **Out-of-Core Textures**

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## **Product Usage & Licensing**

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## **Advanced**

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