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changes.mady.by.user Gergana Lilkova

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

Folder – Allows grouping multiple layers in folders. This is only available when the Source layer is set to Composite;
Background – Adds a background color correction layer;
Render Element – Selects a render element (with ability to apply mask on it) from your image that you can use in compositing. This is only available when the Source layer is set to Composite;
ICC Profile – Uses an ICC profile file for color corrections;
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 – 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;
Cryptomatte mask element – Mask is based on the VRayCryptyomatte Render Element;
Proportion Guide – Adds a proportion guide layer.

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 various actions related to layers such as create, delete, reorder or modify a layer.

Redo various actions related to layers such as create, delete, reorder or modify a layer.

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Profile cached – When loading an ICC file, this checkbox indicates whether the file is smaller or bigger than a given threshold of 64k. If the file is smaller than 64k, the checkbox is ticked to indicate that the ICC file is directly embedded in the scene. If the loaded file is bigger than 64k, the checkbox is inactive which indicates that you must either put the ICC file in the Max project folder, or set the correct path to load it.

Rendering Intent – Specifies an ICC color replacement scheme. You can choose from Perpetual, Relative colorimetric, Absolute colorimetric, and Saturation.

Back point compensation – Enables back point compensation.

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ICC Profile

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The Source layer determines the input of the layers stack. It specifies if you work on your rendered image, composite or light mix.ICC profile layer provides all options of the Display Correction ICC mode. On top of that, as a layer it can be blended with the other layers.

Profile cached – When loading an ICC file, this checkbox indicates whether the file is smaller or bigger than a given threshold of 64k. If the file is smaller than 64k, the checkbox is ticked to indicate that the ICC file is directly embedded in the scene. If the loaded file is bigger than 64k, the checkbox is inactive which indicates that you must either put the ICC file in the Max project folder, or set the correct path to load it.

Rendering Intent – Specifies an ICC color replacement scheme. You can choose from Perpetual, Relative colorimetric, Absolute colorimetric, and Saturation.

Back point compensation – Enables back point compensation.

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Source

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The Source layer determines the input of the layers stack. It specifies if you work on your rendered image, composite or light mix.

RGB - The rendered image is the source.

Composite - You can add Render element layers in this mode and start compositing your image from the render elements rendered with it. For example, you can do a simple Back to Beauty compositing of your image in this mode.

LightMix - This mode allows you to adjust the intensity and color of your lights during and after the render. Changes can be transferred back to the lights in the scene. To use the LightMix, add a VRayLightMix render element before rendering.

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Background

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This section layer allows you to load an image and use it as add a background for to your rendering.

Opacity – Controls the layer opacity.

Color – Picks a solid color to be used as background.

File Load – Loads a file that is going to be used as a background. Image sequences can be loaded as well using the <frameNum> tag.

Recent – Lists recently used files.

Stretch – Controls 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 either through the Display Correction layer or through the OCIO environment variable.

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

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Constant

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This color correction applies a solid color that can be used as a constant to achieve an effect on another layer. For example, it can be multiplied by another layer.

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