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VRayOCIO is a texture that allows users to apply OpenColorIO (OCIO) color transformations to textures in Cinema 4D to manage their look.

In the example shown, an aces_0.1.1.ocio file is used to define the output colors of the texture.

Basemap – The base texture that is corrected.

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

Config File – Specifies the OCIO configuration file.

Inout Type – Determines how the input and output color spaces are specified:

Colorspaces – The user specifies the input and output color spaces directly.
Roles – 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:

Color Space – The texture performs color space conversions.
CDL Transform – 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).
File Transform – The texture performs a color transformation based on another file (i.e. .3dl, .lut, .cube etc).
Log Convert – 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.

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

Look Input Colorspace – The color space of the base texture.

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

Look Output Colorspace – The output color space.

Look Direction – Specifies whether to apply forward or inverse transformation.

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

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These parameters are available when the Mode is set to CDL Transform.

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

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

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

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

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

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

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

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These parameters are available when the Mode is set to File Transform.

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

Filetr Cccid – Color correction id if present in the file.

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

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

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

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