---
title: "VRayOCIO"
canonical: "https://documentation.chaos.com/space/VC4D/116855331/VRayOCIO"
format: markdown
---
This page provides information about the V-Ray OCIO texture in Cinema 4D. Overview VRayOCIO is a texture that allows users to apply OpenColorIO (OCIO) color transformations to textures in Cinema 4D to manage their look. UI Path:   Texture  >  plugins  >  V-Ray  >  VRayOCIO Parameters Basemap  – The base texture that is corrected. Config Src  – Specifies the OCIO configuration. Auto  - Automatically finds the OCIO source by checking environment variable, file and the V-Ray internal configuration. Environment  – The OCIO environment variable is used. File  – Manually set the OCIO config file. Internal  – Uses the V-Ray configuration that includes srgb_linear, raw and acescg options only. Config File  – Specifies the OCIO configuration file. This option is available only when the  Config Src  is set to  File  or  Auto . 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. Color Space 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). Look 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. CDL Transform 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. File Transform 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 . Log Convert 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. Display These parameters are available when the  Mode  is set to  Display . Disp Input Colorspace  – Specifies the color space of the base texture. Disp Display Device  – Specifies a viewing device from the devices listed in the OCIO configuration. Disp View transform  – Specifies the desired view transformation.