---
title: "Corona VFB 2.0"
canonical: "https://documentation.chaos.com/space/CRC4D/125049497/Corona%20VFB%202.0"
format: markdown
---
This page provides information on using the Corona VFB 2.0 in Corona for Cinema 4D.
## **Overview**
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## **Switching from VFB 2.0 to Legacy VFB**
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## **Corona VFB 2.0 Buttons**
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| **Button** | **Description** |
| --- | --- |
|  | Saves the currently displayed image to a selected file. |
|  | Clicking the "**arrow**" icon next to the Save button displays the following available options:
**Save **– Saves the currently displayed image to a selected file.
**Save all** – Saves each multipass (including the Beauty pass) as a separate file using a specified file format.
**Save CXR **–** **Stores all the information from the VFB (including the multipasses, the [LightMix](https://docs-chaos.atlassian.net/wiki/spaces/CRC4D/pages/124656249) information, tone mapping, denoising data, etc.) inside a single CXR file. To learn more about saving CXR files visit our [Help Center](https://support.chaos.com/hc/en-us/articles/4528475623953-How-to-save-a-CXR-file-from-the-VFB-in-C4D).
**Save 50%** – Saves the currently displayed image to a selected file down-sampled to half of the resolution.
**Save for AI** – Saves the currently displayed image with all data necessary for AI enhancement.
> ⚠️ The Save for AI option is not exposed by default. You need to enable the **AiEnhancer render pass** to expose it. |
|  | Copies the VFB content to the host app frame buffer. |
|  | Copies the currently displayed image into the clipboard. |
|  | Erases the currently displayed image. |
|  | Activates mode for editing the render regions. |
|  | Clicking the "**arrow**" icon next to the Render Region button displays the following available options:
**Disable All **–** **Disables all selected regions.
**Delete all **– Removes all selected regions. |
|  | Activates pick mode for selecting objects and setting of camera focus point. |
|  | Opens the [VFB Settings](#VFB-Settings) window. |
|  | Uploads an image to Chaos Cloud with data necessary for AI enhancer. The image contains all data necessary for the AI Enhancer.
Upon uploading, you are prompted to select a destination for the image in the Chaos Cloud.
> ⚠️ You must enable AiEnhancer render pass in order to use the AI Enhancer button. Find more details at [How to use AI Enhancer in Corona](https://support.chaos.com/hc/en-us/articles/36244594382353).
> ⚠️ If the resolution is more than 4096px, the image is downscaled to 4096px on its longer edge. The enhanced image is also 4096px on its longer edge.
> ⚠️
> ⚠️ If the resolution is from 3840px to 4096px, the rendered image is passed to the enhancer as-is. The enhanced image resolution is the same as the rendered image resolution.
> ⚠️
> ⚠️ If the resolution is from 1920px to 3839px, the rendered image is first downscaled and then upscaled. The enhanced image resolution is 4096px.
> ⚠️
> ⚠️ If the resolution is from 1024px to 1919px, the rendered image is upscaled. The enhanced image resolution is 4096px.
> ⚠️
> ⚠️ If the resolution is less than 1024px, the rendered image is upscaled 4x. The enhanced image resolution is between 4 times the original resolution up to 4096px. In this case, the final resolution may be lower than 4096px. |
|  | Opens Collaboration to share drafts and final renders, manage feedback with markups, and coordinate with your team in real time via Chaos Cloud. |
|  | **Start Interactive Rendering** – Starts the [Interactive rendering](https://docs-chaos.atlassian.net/wiki/spaces/CRC4D/pages/117507058) feature. |
|  | Stops the rendering process without discarding any additional data or post-rendering actions.
> ⚠️ When denoising is enabled, pressing the **Stop **button stops the rendering process and proceeds to denoising post-rendering actions. |
|  | Clicking the "arrow" icon next to the Stop button displays the following available options:
**Stop **–** **This is the same as the "Stop rendering..." button in the Cinema 4D Picture Viewer window. (this is the default action for the Stop button)
**Cancel **– Stops the rendering process, discards denoising or post-rendering actions, and skips saving output files (if were set up). |
|  | Starts the production rendering process. |
|  | Clicking the "arrow" icon next to the Render button displays the following available options:
**Render **– Starts rendering process. (this is the default action for the Stop button)
**Resume last** – Resumes last render.
**Resume File** – Resumes rendering based on a previously saved CXR file. |
|  | |
|  | **Start Interactive Rendering** – Starts the [Interactive rendering](https://docs-chaos.atlassian.net/wiki/spaces/CRC4D/pages/117507058) feature. |
|  | Stops the rendering process without discarding any additional data or post-rendering actions.
> ⚠️ When denoising is enabled, pressing the **Stop **button stops the rendering process and proceeds to denoising post-rendering actions. |
|  | Clicking the "arrow" icon next to the Stop button displays the following available options:
**Stop **–** **This is the same as the "Stop rendering..." button in the Cinema 4D Picture Viewer window. (this is the default action for the Stop button)
**Cancel **– Stops the rendering process, discards denoising or post-rendering actions, and skips saving output files (if were set up). |
|  | Starts the production rendering process. |
|  | Clicking the "arrow" icon next to the Render button displays the following available options:
**Render **– Starts rendering process. (this is the default action for the Stop button)
**Resume last** – Resumes last render.
**Resume File** – Resumes rendering based on a previously saved CXR file. |
|  | This drop-down list allows selecting the [multi-pass](https://docs-chaos.atlassian.net/wiki/spaces/CRC4D/pages/117506222) to be displayed in the VFB. |
|  | This drop-down list allows performing zoom actions.
**Zoom in **–** **Zooms the image in.
**Zoom out** –** **Zooms the image out.
**Zoom to 50% **–** **Zooms the image to 50%.
**Zoom to 100% **–** **Zooms the image to 100%.
**Zoom to 200% **–** **Zooms the image to 200%/
**Lock IR resolution **–** **This checkbox locks the image aspect ratio when the IR is running.
**Dockable **– Specifies whether the VFB should be dockable into 3ds Max’s UI. Be aware that when docked, the VFB doesn’t respect the current monitor's DPI and will use the same DPI scaling as 3ds Max.
**Flip **– Flips the currently shown image horizontally. Shortcut:** Ctrl+/**
> ✅ Keyboard shortcuts are available for zooming actions.
> ✅
> ✅ **Ctrl **+ **+ **– Zooms in
> ✅
> ✅ **Ctrl **+ **- **– Zooms out
> ✅
> ✅ **Ctrl **+ **0 **– Zooms the image to 100%
> ✅
> ✅ **Double-click (LMB)** – Changes the VFB size to match the image size. |
|  | Hide or show tools sidebar. |
## **VFB Settings**
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## **Post Tab**
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### **Auto Adjustment**
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### **Tone Mapping**
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### **Bloom & Glare**
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#### **Custom Aperture**
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### **Sharpening & Blurring**
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### **Chromatic Aberration**
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### **Denoising**
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### **Proportion Guide Lines **
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## **Stats Tab**
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## **History Tab**
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## **LightMix Tab**
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