The Corona Color Correct Shader provides some powerful options for modifying the colors of any texture map such as brightness, saturation, contrast, hue, gamma, temperature, inverting colors, exposure, and more.
Creating Corona Color Correct Shader:
We can create a Corona Color Correct Shader by following the below method:
In the Node material editor right-click in any material view then go to New Shader>Corona>Color Correct.
Corona Color Correct Shader parameters:
Shader input: In this slot, we put the texture map which we want to color-correct.
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 map. Values ranging from -1 to 1.
Tint: This parameter adds a color tint to the texture map.
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 for Corona Color Correct Shader:
Example 1: In this example Corona Color Correct shader to create variations in the chair’s fabric color.
Render Result:
Material Setup:
Example 2: In this example, Corona Color Correct shader to create variations in the chair’s wood color.
Render Result:
Material Setup:
Example 3: In this example, Corona Color Correct shader is used to control HDRI lighting.
Corona Color Correct Exposure: -2
Corona Color Correct Exposure: 0
Corona Color Correct Exposure: 1
Material Setup:
Example 4: In this example, Corona Color Correct shader is used to control CoronaSky lighting.
Corona Color Correct Exposure: -1
Corona Colour Correct 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 and softer shadows.
Render Result:
CoronaColourCorrect Gamma: 0.8
CoronaColourCorrect Gamma: 1.0
CoronaColourCorrect Gamma: 1.2
Material Setup:
