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The Lens Effects layer simulates real-world camera lens effects such as bloom and glare. The plug-in uses a fast multi-threaded technique to compute the result and provide immediate update in V-Ray VFB. V-Ray Lens Effects are applied in the effectsResult channel together with other post effects executed over the RGB rendered image. See the Lens Effects page for more information on the individual parameters of this layer.

Image Modified

This layer allows you to set a background by loading an image, which overrides the alpha channel of your rendering. Please see the the Background example below below.

Image – Loads a file that is going to be used as a background.

Stretch – Control the aspect ratio of the image by stretching the image to fit the VFB.

Fit – Keeps the aspect ratio of the image. Enlarges or shrinks the VFB to fit the image.

Fill – Keeps the aspect ratio of the image and cuts some parts of the picture to fill the VFB.

Horizontal offset – Controls the background image position by the X axis.

Vertical offset – Controls the background image position by the Y axis.

As foreground – When enabled, the image loaded in the field above is used as a foreground. This means that the image is on top of the rendering and you are able to see the rendering only if the image has an alpha channel.

Save in image – When enabled, saves the layer to the image.

Color Transformation – This dropdown allows display corrections to be applied to the Background layer independently.

Auto – Recognizes what the desired transformation would be based on the image suffix (_srgb, _lin_srgb, _acescg...) and sets those settings automatically.
Manual – Allows manual setup of the color transformation options. The options can be left at Auto and be determined automatically by V-Ray. The options can be set to None and apply no transformations.

RGB color space – Choose which color space to use for the color transformations. sRGB is the color space for most monitors and computer displays. ACEScg allows for greater range of color transformations in post. It has a wider gamut of colors than the sRGB linear gamut.
Transfer function – Alters the pixel values to a new range. Gamma 2.2 is the standard for most monitors.

OCIO – Allows an Input color space to be selected when an OCIO profile is already loaded. OCIO profiles can be loaded through the Display Correction Layer.

Input color space – Determines the input color space for the background image; normally this is a raw (linear color space) as V-Ray internally works in that space.