The Corona Color Correct Map provides powerful options for modifying the colors of any texture such as changing the brightness, saturation, contrast, hue, gamma, temperature, inverting colors, adjusting exposure, and more.
Creating Corona Color Correct Map:
We can create Corona Color Correct Map by following the below method:
In the slate material editor right-click in any material view then go to Maps>Corona>CoronaColorCorrect.
Corona Color Correct Map parameters:
Input: In this slot, we place the texture which we want to color-correct.
Use settings from map: If this option is selected, the current Color Correction Map will use parameters of a "master" Color Correction Map instead of its own. This option thus allows applying the same color correction to multiple maps - one "master" ColorCorrectionMap controls multiple other ones. 
Use these settings: If this option is selected, the map will use its own parameters available in its interface.
sRGB (Low Dynamic Range) Adjustments Parameters:
These parameters provide basic color correction options such as brightness, contrast, saturation, hue, temperature, etc, which can be used in common scenarios such as adjusting the appearance of bitmap textures.
Linear (HDR) Adjustments Parameters:
Exposure: This parameter controls the exposure of the texture. Values ranging from -1 to 1.
Tint: This parameter adds a color tint to the texture.
LUT Parameters:
Enable: When checked, the LUT file correction will be enabled. This also enables the input slot for a LUT file.
Input LUT is in Log color space: Checking this will read the LUT in log color space.
Opacity: This parameter controls the influence of the LUT file correction.
Curves Parameters:
Enable: When checked, the correction of the curve will be enabled. This also enables the curves editor.
Editor: This opens up the curves color editor.
Examples
Example 1: In this example, the Corona Color Correct map was used to create variations in the chair fabric color:
Render Result:
Material Setup:
Example 2: In this example, the Corona Color Correct map was used to create variations in the chair wood color:
Render Result:
Material Setup:
Example 3: In this example, Corona Color Correct map is used to control HDRI lighting:
CoronaColorCorrect Exposure: -2
CoronaColorCorrect Exposure: 0
CoronaColorCorrect Exposure: 1
Material Setup:
Example 4:In this example, Corona Color Correct map is used to control CoronaSky lighting:
CoronaColorCorrect Exposure: -1
CoronaColourCorrect Exposure: 0
Material Setup:
Example 5: In this example, Corona Color Correct map is used to control HDRI lighting with different Gamma values which results in sharper or softer shadows:
Render Result:
CoronaColourCorrect Gamma: 0.8
CoronaColourCorrect Gamma: 1.0
CoronaColourCorrect Gamma: 1.2
Material Setup:
