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The New V-Ray Frame Buffer (VFB) is a second-generation V-Ray virtual frame buffer.

The New VFB is much more than a render image holder window, with Light Mix capabilities for modifying the project lighting after rendering and Layer Compositing for a higher level of post-processing adjustments.

  • Image preview:
    Loads render elements channels via a dropdown list;
    Works with display corrections;
    Loads various 8bit and 32bit file formats, including V-Ray resumable files;
    Image comparison between 2 or 4 renders;
  • Image management:
    Keeps the rendered image in full 32-bit floating-point format;
    Stores history of rendered images with their post rendering corrections;
    Saves corrected output to various image formats;
  • Image editing and post-processing:
    Add Color Corrections to rendered image and its elements;
    Layer Compositing for anything from a simple Back to Beauty workflow or advanced compositing;
    LightMix adjustment of the project lighting after rendering the image;
  • Project editing:
    Modifies actual lights values by transferring updated intensity and color from LightMix mode;
  • Render management:
    Denoiser control;
    Region rendering control and test resolution;
    Allows you to choose the order in which the buckets are rendered.
  • Collaboration:
    Shares images with other Chaos users in Chaos Cloud Rendering.
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VFB Cloud Collaboration is a new feature available only in V-Ray 6 for Revit.

To learn how to work with the New VFB, check the Courseware section.

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Menu

Menu Options

 

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. Press the options() button to open a menu with more settings.

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.

Batch image processing - Allows processing of multiple .vrimg files with the same layer tree changes at the same time.

Upload image to Chaos Collaboration – use in order to upload your images to Chaos Cloud Collaboration.

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

Abort rendering – Stops the current rendering.

Render – Starts Production 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 (F) – 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.

Test resolution – Enables test resolution in VFB. The submenu allows choosing a percentage of the render resolution to set as the test resolution. You can choose between 10%, 25%, 50%, 75%, 110%, 125% and 150%. Note: This only affects V-Ray and does not affect the native 3ds Max test resolution setting found under 3ds Max's Render Setup dialog.

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.

Flip – Mirrors the image in the VFB. This is a view only option, the flipped image cannot be exported. This function is only active while holding the menu button or the hotkey for the corresponding type of flip. The effect does not interrupt interactive rendering.

Flip horizontally– Mirrors the image horizontally.

Flip vertically – Mirrors the image vertically.

Panorama View – Shows the image in 360° view. Hold the middle mouse button and move the mouse to look around. The field of view can be altered by scrolling.

Show History – Shows the History panel.

Show Layers – Shows the Layers panel. 

Options

VFB settings – Opens the VFB Settings window with setting adjustment options for Render View, Render Region, History, and Layers.

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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 blue channel.

Displays the Alpha channel.
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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;

Save all image channels to separate files – Saves all the render elements into separate files; Use Image Added to save the VFB color corrections to render elements.

Save all image channels to single file – Saves the image into a single multi-channel EXR

or

or .vrimg

file

 file.

Upload image to Chaos Collaboration – Opens Chaos Cloud Collaboration.

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, 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 Render Region section for more information.

Stops the current rendering.

Starts Production Rendering.

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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. Call up to four images from the history to be compared in the VFB (as shown below). History files are stored as as .vrimg files in a user-specified folder. Configure the render history settings in the VFB Settings window.

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Search field for filtering images based on the project's paths and notes.

 

 

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Use the keyboard keys from 1 to 9 to quickly load the first 9 images from the history to the VFB.

Edit note – Add a text comment to the image. The comment appears below the image.

Set A – Sets the render as A image for A/B comparison.

Set B –  Sets the render as B image for A/B comparison.

Load to VFB – Loads the selected image in the VFB (same as double-clicking on the image).

Delete – Deletes the selected image from history. The image is moved to the system's Recycle Bin with the option to be restored from there if needed.

Load layers – Loads the layer tree preset of the selected image.

Load V-Ray settings – Loads the V-Ray settings used for the  saved render.

Compare V-Ray settings – Compare the render settings of saved renders in the Compare V-Ray settings dialogue.

Image Info – Opens a window containing detailed information about the image, including, but not limited to Camera, Aperture, FOV, Target Distance, V-Ray version, render time. Have in mind that the camera values are saved in system units. Also, the vrayrevison info displayed in the list is not related to the saved .vrimg file but to the current V-Ray build installed for Revit.

Open scene – Opens the rendered project in the viewport. This option works as long as the initial file path of the project has not changed after the render.

Copy scene path – Copies the full path to the project.

Copy project path – Copies the full path to the project.

Upload image(s) to Chaos Collaboration – Opens Chaos Cloud Collaboration. Use in order to upload your images. 

Reload history – Re-reads the history image list. This may be needed if the history folder is updated outside of 3ds Max (e.g. from another Revit session).

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Manually saved .vrimg files can also be added to the History folder, but they need to be saved with all image channels in one .vrimg file to keep the complete image info.

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Layers

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The New V-Ray Frame Buffer includes a suite of color corrections and tools for adjusting the image. The tools are added as layers and displayed in a layer tree. Enable or disable a particular tool using the visibility icon () to the left of its name. The The  icon icon indicates that a layer is disabled.

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Creates a layer. Multiple layers of the same type can be added.

Folder – Allows grouping multiple layers;
Background – Adds a background color correction layer;
Render Element – Selects a render element from your image that you can use in compositing. This is only available when the Source layer is set to Composite;
Constant – Adds a solid color that can be used to achieve an effect on another layer (for example to multiply by the constant);
Exposure – Adds an Exposure color correction layer;
White Balance – Adds a White Balance color correction layer;
Hue/Saturation – Adds a Hue/Saturation color correction layer;
Color Balance – Adds a Color Balance color correction layer;
Curves – Adds a Curves color correction layer;
Lookup Table – A Lookup Table layer allows loading a LUT file for color transformations;
Filmic Tonemap – Contains different types of mapping curves and gamma corrections. Also allows selection of a color space.
Integer mask element – Mask is used with integer render elements like VRayRenderID, VRayObjectID, and VRayMtlID Render Elements.
MultiMatte mask element – Mask is based on the MultiMatte Render Element.
Proportion Guide – Adds a proportion guide layer.

For more information, see the Layers page.

Deletes the selected layer(s).

Saves a layer tree preset.

Loads a layer tree preset.

Quick access to custom layer presets. You must set the path to it in the VFB Settings.

Undo create layer.

Redo create layer.

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