Page History
Also known as the VFB, this UI window allows you to view your V-Ray renders as well as adding several important and convenient functions to display your renders.
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Overview
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The V-Ray Frame Buffer (VFB) is a V-Ray specific frame buffer with additional capabilities including render history and lens effects.
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Fancy Bullets | ||
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VFB Toolbars
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Top window tools
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Saves the current image (or the currently selected render element) into a single file. | |
Saves all the render elements into separate files. (available from flyout). | |
Saves all the render elements in a single file. If a multi-channel type file is used (.exr, .vrimg) all the render elements will be saved in the same file. (available from flyout). | |
Opens an image file to be previewed in the V-Ray Frame Buffer. | |
This button copies the current channel to the clipboard along with the color corrections applied and the background image. | |
Clears the contents of the frame buffer. Sometimes helpful when starting a new render to prevent confusion with the previous image. | |
Forces V-Ray to render the closest bucket found to the mouse pointer. Drag the mouse over the V-Ray frame buffer while rendering to see which buckets are rendered first. You can turn this on and off on-the-fly while rendering | |
Allows you to render regions in the V-Ray VFB. | |
Links the V-Ray VFB to Pdplayer. | |
Stops the current rendering. | |
Repeat the last render. |
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| Opens the Color Corrections dialogue which lets you define color corrections of various color channels. Right-click to dock or undock it. | ||||||
| Forces color clamping in the V-Ray VFB. Click and hold left mouse button to display the clamped colors in the V-Ray VFB. | ||||||
| Permanently opens the info dialogue which will give you information about the pixel you right-click the mouse pointer on. If you right-click the mouse pointer over a pixel without turning this setting on you will see the info dialog only while your mouse button is down. | ||||||
| Enables the White balance color correction. | ||||||
| Enables the Hue/Saturation/Lightness color corrections. | ||||||
| Enables the color balance color corrections. | ||||||
| Enables the levels color corrections. | ||||||
| Enables the curve color corrections. | ||||||
| Enables the exposure corrections. | ||||||
| Enables the usage of a background image. | ||||||
| Displays the image in sRGB color space. Click and hold the left mouse button to switch between sRGB color space and ICC. | ||||||
| Enables and disables the effect of the Look Up table loaded in the Color Corrections settings. Hold down to chose between LUT and OCIO color corrections. | ||||||
| Shows the V-Ray VFB history window. Right-click to dock or undock it. | ||||||
| Enables visualization the pixel aspect ratio. | ||||||
| Enables or disables stereoscopic preview. Click and hold down the left mouse button to pick between several stereoscopic modes. | ||||||
| Opens forth the Lens Effects controls. Right-click to dock or undock them. | ||||||
| Opens the V-Ray Progress Window. |
Stamp Tools
Toggles open Stamp Tools at the bottom of the VFB. | |
Applies a stamp with rendering metadata to the image. | |
Opens the Stamp Variables window to make it easy to copy different types of information onto the stamp. | |
Align stamp options; Click and hold to change from Left alignment to Right alignment or Center alignment. | |
Change stamp placement from align Bottom to align Top. | |
Choose Font window to change font, its style and size. |
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Field | Description |
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vraycore | Version of the V-Ray core |
rendertime | The render time for the last completed frame |
vrayversion | Internal V-Ray version |
filename | Max project file name |
primitives | Number of internal V-Ray primitives used in rendering |
computername | The name of the computer this frame was rendered on |
date | Date at the end of rendering |
time | Time at the end of rendering |
w | Width |
h | Height |
ram | Physical memory available (RAM) |
vmem | Virtual memory available |
mhz | The speed in Mhz of the CPUs |
cpu | CPU type and number of CPUs available |
os | OS version |
camera | Camera name (camera views only) |
numPasses | Sampling level reached: number of passes |
numSubdivs | Sampling level reached: number of subdivs |
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Render History
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The V-Ray VFB keeps a history of previously rendered images and lists each with a number, thumbnail, and textual details in the Render history. This history can be accessed through the History icon at the bottom of the VFB window. The Render history can be docked to the VFB (as shown below) or can float separately. In addition to keeping history, this feature can display two images in the VFB for comparison (as shown below), which is revealed via a sliding division line. History files are stored as .vrimg files in a user-specified folder.
Enables the V-Ray VFB history. | |
Saves the current image from the VFB to the render history. | |
Loads the image selected in the Render history to the VFB. | |
removes the selected image from the render history. | |
Swaps the A and B images. | |
Sets the currently selected image as image A for A/B comparison in the VFB. | |
Sets the currently selected image as image B for A/B comparison in the VFB. | |
Enables or disables the comparison of images A and B from the VFB history. Click and hold down the left mouse button to change between horizontal and vertical comparison. | |
Opens out the VFB history options which allow the user to specify the location where the history will be saved and the amount of disk space available. It also allows you to turn on auto-saving of each rendered image to the history. |
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Delete – Deletes the selected image from the history.
VFB Shortcuts
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Here is the list of shortcuts you can use to navigate through the VFB image. Please note that VFB window must have the current focus for the shortcuts to have effect:
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Keyboard | Description |
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+ / - | Zoom in/Zoom out |
* | Zoom to 100% |
Arrow keys | Pan left, up, right, down |
1-9 | Load the respective image from the VFB history |
Ctrl+C | Copy the VFB image to the Windows clipboard; the image is copied exactly as it appears on the screen (meaning sRGB/LUT/OCIO etc corrections are applied). The full resolution image is copied to the clipboard, even if the VFB view is zoomed in/out. |
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Changing the background color
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You can change the background color of the VFB by right-clicking on the background and selecting one of the options from the pop-up menu.
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