Color Corrections Tab

Scene sub-state – A dropdown list of all saved scene color corrections sub-states.

Create () – Creates a new scene color corrections sub-state.

Update () – Updateс a scene color corrections sub-state.

Delete () – Deletes a scene color corrections sub-state. Double-click to delete.

Exposure corrections – Turns on/off exposure corrections.

Exposure bias – Adjusts the Exposure bias value.

Highlight burn – Applies exposure corrections to highlights in the image. This option is hidden when Filmic tonemap is on.

Contrast – Positive values push the colors away from the medium gray value to increase image contrast. Negative values push the colors closer to medium grey.

Filmic tonemap – Applies a parametric mapping curve and gamma correction. 

Type – Specifies the type of curves used for the tone mapping. You can choose between Hable and AMPAS.

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

Hable

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.

AMPAS

AMPAS mode applies an approximate ACES standard curve.

LUT – Applies a lookup table file to the scene.

Amount – Specifies the LUT weight, where 0 is no LUT effect and a value of 1.0 applies fully the effect.

Load LUT file... – Loads a LUT (lookup table) file.

Color space – Specifies the color space for the loaded LUT file.

Linear – The loaded LUT file is interpreted in linear color space.
sRGB – The loaded LUT file is interpreted in sRGB color space.
V-Ray Log. – The loaded LUT file is interpreted in a V-Ray logarithmic color space.

Bloom – Applies bloom to the scene.

Intensity – Multiplier for the bloom source. Increasing the value can boost the effect.

Threshold – Sets a minimum value for the rendered pixels to be considered as lens effects source. The Bloom is generated only regarding pixels with larger value than the specified threshold.

Iterations (spread) – Specifies the size of the bloom spread. Larger values increase the spread but impact performance.

Hue / Saturation – Applies HSL transformation on the image colors.

Hue – Changes the overall hue of the image colors (grey colors remain intact).

Saturation – Specifies the image colors' intensities. Positive values produce a more vibrant, saturated image while negative values desaturate and dull the image colors.

Lightness – Adds or removes white from the image. Positive values add white to the image, making it lighter. Negative values remove white from the image, making it darker.

Color balance – Applies color balance adjustments:

All – Applies adjustments to the overall color tone of the image.
Highlights – Applies adjustments to the bright (highlight) colors of the image.
Midtones – Applies adjustments to the medium (midtones) colors of the image.
Shadows – Applies adjustments to the dark (shadow) colors of the image.

The color corrections are additive in that the All correction affects all colors of the image, and the Shadows/Midtones/Highlights options adjust the individual components in the image on top of the All correction.

Chromatic Aberration – Applies a chromatic aberration effect to the scene.

Value – Specifies the amount of chromatic distortion from the center to the edges of the viewport.