This page provides information on the V-Ray OCIO Map.
Base Texture – Specifies the base texture that will be corrected using OCIO.
OCIO Configuration File – Allows the user to manually pick an OCIO configuration. If not specified, the OCIO environment variable is used.
Inpit/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 which color transformations the texture will perform.
ColorSpace – The texture performs color space conversions.
CDLTransform – The texture performs a CDL transformation.
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.
OCIO Status – A read-only attribute that provides feedback from the OCIO library.
These parameters are only available when Mode is set to ColorSpace or Look.
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).
These parameters are available when Mode is set to Look.
Look – Specifies the name of the look if the OCIO configuration defines looks.
Direction – Specifies whether to apply forward or inverse transformation.
Ignore Errors – When enabled, attempts to perform color corrections even if there are errors.
CDL Transform Parameters
These parameters are available when the Mode is set to CDLTransform.
Slope RGB – Specifies multipliers for the red/green/blue color components.
Offset RGB – Specifies offsets for the red/green/blue color components.
Power RGB – Specifies gamma values for the red/green/blue color components.
Saturation – Saturation value. A value of 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.
Color correction ID – Specifies the color correction ID as specified in the color correction file.
Direction – Specifies whether the forward or the inverse CDL transformation will be applied.
These parameters are available when the Mode is set to FileTransform.
File – Specifies a color transformation file (.3dl, .cube, .lut etc).
Color correction ID – Specifies the 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 data (i.e. .cube files), specifies how this data is interpolated.
Nearest – No interpolation. The nearest suitable color from the table is picked up. This method is fast, but may introduce artifacts, especially in textures with smooth gradients.
Linear – The color is linearly interpolated from the nearest values in the table. This is a smooth method, but is slower than nearest.
Tetrahedral – Uses the tetrahedral method to convert colors with high accuracy.
Best – Chooses the best interpolation method for the requested context.
These parameters are available when Mode is set to LogConvert.
Operation – Specifies whether to convert from linear to log space or vice versa.
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.