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Basemap – The base texture that will be corrected.

OCIO config – Manually specifies an OCIO configuration. If not specified, the OCIO environment variable is used.

Input output selection – Determines how the input and output color spaces are specified:

by color space – The user specifies the input and output color spaces directly.
by role – The user specifies the input and output color space depending on the task that they want to perform as defined in the OCIO configuration.

Mode – Specifies what color transformations to be performed:

ColorSpace – The texture performs color space conversions.
CDL – The texture performs an ASC CDL transformation. CDL stands for "Color Decision List" which is a color grading information exchange format developed by the ASC (American Society of Cinematographers).
FileTransform – The texture performs a color transformation based on another file (i.e. .3dl, .lut, .cube etc).
LogConvert – The texture performs log2lin or lin2log conversion.
Display – The texture performs color space conversion for display.
Look – The texture performs a look transform. The OCIO config must define looks for this mode to work.

Reload – Reloads the OCIO configuration.

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Mode-Specific Parameters

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These parameters are available when the Mode is set to ColorSpace.

In – Specifies the input color space (the color space that the input texture is in).

Out – Specifies the output color space (for rendering, this would typically be a linear color space).

From basemap file name – When enabled, the texture tries to determine the correct in/out color spaces based on the file name from the base texture (assuming it is a Bitmap or VRayBitmap texture).

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CDLTransform Parameters

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These parameters are available when the Mode is set to CDLTransform.

Slope rgb – Multipliers for the red/green/blue color components.

Offset rgb – Offset values for the red/green/blue color components.

Power rgb – Gamma values for the red/green/blue color components.

Saturation – The saturation value; 0.0 makes the image grayscale.

Use file – When enabled, the CDL parameters are read from a .cc or a .ccc file instead of specified directly.

File – Specifies a .cc or .ccc file to read.

Cccid – Color correction id as specified in the color correction file.

Direction – Specifies whether the forward or the inverse CDL transformation is applied.

Save cc – Allows the CDL parameters to be saved in a .cc file.

get values from file – When Use file is enabled, this button copies the parameters from the file into the texture parameters so that they can be adjusted if needed.

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FileTransform Parameters

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These parameters are available when the Mode is set to FileTransform.

File – Specifies a color transformation file (.3dl.cube.lut, etc).

Cccid – Color correction id if present in the file.

Direction – Specifies whether forward or inverse color transformation should be applied. Not all file formats support inverse transformations.

Interpolation – If the file contains tabulated LUT data (i.e. .cube files), specifies how this data is interpolated.

nearest – Nearest neighbor in all dimensions. This method is fast, but may introduce artifacts, especially in textures with smooth gradients.
linear – Linear interpolation in all dimensions . This is a smooth method, but is slower than nearest.
tetrahedral – Tetrahedral interpolation in all directions.
best – Chooses the best interpolation type for the requested context. Currently the same as linear.

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LogConvert Parameters

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These parameters are available when the Mode is set to LogConvert.

Operation – Specifies whether to convert from linear to log space or vice versa.

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Display Parameters

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These parameters are available when the Mode is set to Display.

In – Specifies the color space of the base texture.

Device – Specifies a viewing device from the devices listed in the OCIO configuration.

View transform – Specifies the desired view transformation.

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Look Parameters

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These parameters are available when the Mode is set to Look.

In – The color space of the base texture.

Look – The name of the look if the OCIO configuration defines looks.

Out – The output color space.

Direction – Specifies whether to apply forward or inverse transformation.

Ignore errors – When enabled, attempts to perform color corrections even if there are errors.

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Context

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See the OCIO library documentation for more information.

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References

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The official OpenColorIO web page: http://opencolorio.org/

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