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VFB Menu
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The V-Ray Frame Buffer menu holds the main frame buffer commands. Some of the options are also available in the VFB toolbar for a quick access.
Menu | Menu Options | |
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File | Save current channel – Saves the currently loaded channel to an image file format. Save all image channels to separate files – Saves all the render elements to separate files. Save all image channels to single file – Saves the image to a single multi-channel EXR or .vrimg file. Load image – Opens an image file to be previewed in the V-Ray Frame Buffer. | |
Render
Start interactive rendering – Starts IPR.
Abort rendering – Stops the current rendering.
Render – Starts rendering.
Image
Follow mouse – Renders the closest bucket found to the mouse pointer, when using the bucket image sampler. If the progressive sampler is used, V-Ray samples the closest pixels to the mouse pointer.
Follow mouse – Drag the mouse over the VFB while rendering to change what part of the image is sampled first;
Follow mouse (locked) – Locks the bucket (or sampling) starting point.
Copy current channel to clipboard – Copies the current channel to the clipboard.
Clear image – Clears the contents of the frame buffer. This is useful when starting a new render to prevent confusion with the previous image.
View
Display color space –Specifies the color space, in which the image is displayed.
None – Does not specify a color space;
sRGB – Displays the image in sRGB color space;
OCIO – Displays the image in a color space loaded from an OCIO configuration file;
ICC – Displays the image in a color space loaded from an ICC configuration file;
Gamma 2.2 – Displays the image in Gamma 2.2 color space.
Zoom VFB – Zooms in/out the rendered image in the VFB.
Zoom 50% – Zooms out to 50%;
Zoom 100% – Zooms to 100%. Alternatively, double-click in the VFB with the left mouse button;
Zoom 150% – Zooms in to 150%.
Zoom to fit – Zooms the current image to fit in the VFB. If Render Region is active – zooms to the region.
Channels – Chooses which channels to see.
View red channel – Displays the red channel;
View green channel – Displays the green channel;
View blue channel – Displays the blue channel;
Switch to alpha channel – Displays the alpha channel;
Monochromatic mode –Displays the image in monochromatic mode.
Color clamping – Opens the color clamping submenu options:
Force color clamping – Forces color clamping;
View clamped colors – Displays the clamped colors.
Use pixel aspect – Enables visualization of the pixel aspect ratio.
Stereo – Enables stereoscopic preview. You can view the image in stereo in red/cyan or green/magenta.
Options
VFB Toolbar
Batch image processing – Allows processing of multiple .vrimg files with the same layer tree changes at the same time. | Save all image channels to separate files options Save VFB color corrections to render elements – When enabled, all color corrections are saved to the render channels (as opposed to only the RGB and effectsResult channels). | |
Batch image processing Input folder – Specifies a path to start images. Output folder – Specifies a path for the output images. Layer preset – Specifies a layer tree corrections preset. Output filenames suffix – Specifies a suffix added to the output image filenames. Overwrite existing – Enables overwrite of existing files with the same name in the output folder. | ||
Render | Start interactive rendering – Starts IPR. Abort rendering – Stops the current rendering. Render – Starts rendering. | |
Image | Follow mouse – Renders the closest bucket found to the mouse pointer, when using the bucket image sampler. If the progressive sampler is used, V-Ray samples the closest pixels to the mouse pointer. Follow mouse – Drag the mouse over the VFB while rendering to change what part of the image is sampled first; Copy current channel to clipboard – Copies the current channel to the clipboard. Clear image – Clears the contents of the frame buffer. This is useful when starting a new render to prevent confusion with the previous image. | |
View | Display color space –Specifies the color space, in which the image is displayed. None – Does not specify a color space; Zoom VFB – Zooms in/out the rendered image in the VFB. Zoom 50% – Zooms out to 50%; Channels – Chooses which channels to see. View red channel – Displays the red channel; Color clamping – Opens the color clamping submenu options: Force color clamping – Forces color clamping; Use pixel aspect – Enables visualization of the pixel aspect ratio. Stereo – Enables stereoscopic preview. You can view the image in stereo in red/cyan or green/magenta. | |
Options | VFB settings – Opens the VFB Settings window where you can adjusts settings for Render View, Render Region, History, Layers, and Shortcuts. | |
VFB Toolbar
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| This dropdown gives access to render elements rendered for the scene. The selected render element is displayed in the VFB. By default, the RGB color and Alpha render elements are available. Any additional render elements that have been added to the scene also appear in the drop-down. | ||
| Displays the coordinates of the mouse pointer. | ||
| Specifies the sampled area size | ||
| . Click on the arrow to open a context menu with the available |
HSV – Specifies the Hue, Saturation and Value
| sampled area sizes: 1x1, 3x3, 5x5, and 7x7. | ||
| Specifies the color of the pixel under the current mouse position before applying any color corrections. | ||
| Displays the RGB pixel values at the current mouse pointer position before applying any color corrections. | |
Specifies RGB values. Click on the arrow to open a context menu with the available option. None – Does not specify the RGB value. |
the Hue, Saturation and Value of the pixel under the current mouse position |
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Web – Specifies the HEX of the pixel under the current mouse position |
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8bit – Specifies the 8bit color palette of the pixel under the current mouse position |
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| Displays the Hue, Saturation and Value of the pixel under the current mouse position when HSV is selected. | ||
| Displays the HEX of the pixel under the current mouse position when Web is selected. | ||
| Displays the 8bit color palette of the pixel under the current mouse position when 8bit is selected. | ||
| Locks the mouse pointer coordinates and displays information for the selected pixel. | ||
| Shows corrected colors. | ||
| Shows the V-Ray log. | ||
| Displays the red channel. | ||
| Displays the green channel. | ||
| Displays the blur channel. | ||
| Displays the Alpha channel. | ||
| Saves the image to disk. Press and hold the icon to bring up the submenu: Save current channel – Saves the current channel to an image file format; | ||
| Clears the contents of the frame buffer. This is useful when starting a new render to prevent confusion with the previous image. | ||
| Renders the closest bucket found to the mouse pointer, when using the bucket image sampler. If the progressive sampler is used, V-Ray samples the closest pixels to the mouse pointer. With this option enabled, you can right-click on the image and select Lock bucket starting point to lock the bucket (or sampling) starting point. | ||
| Allows you to render regions in the VFB. See the New V-Ray Frame Buffer section for more information. | ||
| Starts IPR. If there is more than one camera in the scene, hold left mouse button to display a list of the available cameras. | ||
| Stops the current rendering. | ||
| Starts rendering. If there is more than one camera in the scene, hold left mouse button to display a list of the available cameras. | ||
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 panel. Up to four images can be called from the history to be compared in the VFB (as shown below). History files are stored as .vrimg files in a user-specified folder. Render history settings can be configured in the VFB Settings window.
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Command | Description |
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| Reset | Resets all changes done to the selected layer. |
| Save | Saves the layer as a preset. |
| Load | Loads a preset for the selected layer. |
| Delete | Deletes the selected layer. |
| Save as LUT | Bakes all the color corrections to a LUT file. |
| New Layer | Creates a new layer. |
| Duplicate | Duplicates the selected layer. |
| Blend Modes | Specifies how the selected layer blends with the result from all layers below it. |
Stats
| Save as LUT | Bakes all the color corrections to a LUT file. |
| New Layer | Creates a new layer. |
| Duplicate | Duplicates the selected layer. |
| Blend Modes | Specifies how the selected layer blends with the result from all layers below it. |
Stats
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The V-Ray Frame Buffer allows monitoring of different statistics and information about your scene in the Stats panel. The exact contents of the Stats changes depending on the scene, the rendering mode (interactive vs production, bucket vs progressive) and others.
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Right-click to display a context menu, allowing you to copy the Stats values. |
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Log
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The Log panel provides messages about the render process. Verbosity control is available and you can filter the type of messages shown in the Log: All, Error Only, Error & Warnings, or Error, Warnings & info. Additional options are available when you click on the Open options button:
Show progress – Shows a completion percent of each task (e.g. building Light Cache).
Wrap – Wraps longer lines in order to avoid horizontal scroll.
Undock – Docks/undocks the Log tab.
Note that the V-Ray Log is also accessible via the Show log button.
The Log tab can be detached and used as a separate window or docked elsewhereThe V-Ray Frame Buffer allows monitoring of different statistics and information about your scene in the Stats panel. The exact contents of the Stats changes depending on the scene, the rendering mode (interactive vs production, bucket vs progressive) and others.
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Right-click to display a context menu, allowing you to copy the Stats valuesCtr+F opens a search field at the bottom of the Log tab. |
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VFB Shortcuts
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These shortcuts navigate through the VFB image. Please note that the VFB window must have the current focus for the shortcuts to have effect:
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