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The New V-Ray Frame Buffer (VFB 2) 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 scene 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;
    Can store history of rendered images with their post rendering corrections;
    Can save 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 scene lighting after rendering the image;
  • Scene editing:
    Can modify 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.
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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.

Save all image channels to a single file – Saves the image to a multi-channel EXR or .vrimg file.

Load image – Opens an image file from disk to be previewed in the V-Ray Frame Buffer.

Render

Start interactive rendering – Starts Interactive Rendering.

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 – Zooms in or out so to position the image properly within the V-Ray Frame Buffer.

Channels – Chooses which channels to display.

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 settings – Opens the VFB Settings window where you can adjust settings for Render View, Render Region, History, and Layers.


VFB Toolbar

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Image Modified

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 andAlpha 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 sampled area sizes: 1x1, 3x3, 5x5, and 7x7.

Specifies whether color and display corrections are applied (RGB) or not (Raw) when showing the sampled pixel values at the current mouse pointer position.

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.
HSV – Specifies the Hue, Saturation, and Value of the pixel under the current mouse position.
Web – Specifies the HEX of the pixel under the current mouse position.
8bit – Specifies the 8bit color palette of the pixel under the current mouse position.

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.

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