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||V-Ray Frame Buffer|| > Layers

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Layers Menu

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Commands available for the Layers panel are located at the top of the panel. Press on the the icons to see the expanded list of commands for the stacked buttons.

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This correction allows you to control different types of mapping curves, make gamma correction and select a color space. Note that color values are mapped per channel.

Tone mapping space – Specifies the color space where the operator is applied. Converts the image to the selected space and back, if needed. Choose between Linear sRGB and ACEScg.

Type – Specifies the type of curves used for the tone mapping. Choose between Linear, Hejl-Dawson, AMPAS, Hable, and Power Curve.

Log space – Converts the image to log space before applying the tone mapping.

Gamma – Specifies the gamma correction. It is applied before the operator.

Use blue fix – Applies an additional transformation to ACEScg primitives that results in pure blues burning out through cyan instead of magenta. Available when Tone mapping space is set to ACEScg.

Hejl-Dawson Type

Shadows – Shadow compression. Higher values darken the shadows, while also brightening the mid tones.

Highlights – Highlight compression. Higher values reduce burnout.

Hable Type

Shoulder strength – Determines how sharp the shoulder is. Higher values sharpen the shoulder, which results in an overall brighter image.

Linear strength – Determines the strength of the effect from changing Linear angle.

Linear angle – Determines the angle of the curve at the base. Higher values increase the angle.

Toe strength – Low to mid tone compression. Higher values darken the low and mid tones.

White point – The intensity, which gets mapped to 1. This parameter scales the whole curve evenly.

Power Curve Type

Toe length – Determines the range of low to mid tones that are compressed.

Toe strength – Low to mid tone compression. Higher values darken the low and mid tones.

Contrast – Higher values increase the contrast between low and high tones.

Shoulder length – Determines the range of mid to high tones that are compressed.

Shoulder strength – Mid to high tone compression. Higher values darken the mid and high tones.

White point – The intensity, which gets mapped to 1. This parameter scales the whole curve evenly.

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Proportion Guide

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The Proportion Guide layer allows for a number of composition guides to be overlaid on the image. The available guides are Rule of Thirds, Diagonals, Golden Ratio, Center Cross, and Custom Grid.

Rule of Thirds – Overlays the Rule of Thirds guidelines.

Diagonals – Overlays diagonal guidelines.

Golden Ratio – Overlays the Golden Ratio guidelines

Center Cross – Overlays a center cross guideline.

Custom Grid – Overlays custom grid guidelines. You can specify up to 10 columns and rows of the grid.

For all the guides there is a Line Width option, which can be controlled via a slider or spinners, as well as a Color Swatch to control the color of the lines.

For the Custom Grid Rows guides, there are Rows and Columns options to control the rows/columns of the grid.

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Examples

Example: Filmic Tonemap Layer Added

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