Operation
Chooses between file-driven and manual control modes.
Use File when reproducing an external CDL; use Controls for direct slope/offset/power/saturation editing.
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Color & ChannelsAdvanced
OCIOCDLTransform
ASC CDL color decision transform
Applies ASC CDL-style slope, offset, power and saturation corrections through OpenColorIO, either from controls or a CDL file.
OCIOCDLTransform
DaVinci Resolve · Fusion
OCIOCDLTransform is designed for portable primary color decisions that need to move consistently between editorial, VFX, grading and OCIO-aware applications.
Overview
What OCIOCDLTransform does
OCIOCDLTransform is designed for portable primary color decisions that need to move consistently between editorial, VFX, grading and OCIO-aware applications.
Mental model
CDL is a compact, standardized primary grade: scale channels with slope, shift them with offset, reshape them with power, then adjust saturation.
Common uses
Apply an on-set or editorial CDL
Reproduce a shot-level primary grade in VFX
Read corrections from a CDL file
Exchange simple grades between departments
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Image
Image to receive the CDL correction.
Effect Mask
Optional mask that limits where the node affects the image.
OCIOCDLTransform
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Operation: File
Uses the File operation.
Operation: Controls
Uses the Controls operation.
Direction
Applies the CDL forward or reverse.
Reverse is useful when removing a previously applied CDL in a controlled pipeline.
Direction: Forward
Runs the operation in the forward direction.
Direction: Reverse
Runs the operation in the reverse direction.
CDL File
Loads a CDL/CCC-style file.
Keep file versions tied to the shot or editorial decision they represent.
Browse
Opens a file browser for the related path or resource.
Export CDL File
Writes the current control values to a CDL file where supported.
Useful for handing the same primary decision to another department or application.
Keyframe diamonds
Provides keyframe controls for animating the related parameter.
Practical setup
A reliable workflow
- 1
Decide whether the shot grade comes from a file or manual CDL values.
- 2
Set the transform direction.
- 3
Apply the correction in the correct working color space.
- 4
Compare against the reference grade.
- 5
Export or preserve the CDL values with the shot metadata when handing off.
Typical node chain
Input→
OCIOCDLTransform→
Output
Examples
Where this node fits in real work
VFX shot match
Reapply the editorial CDL before comparing the comp to the offline reference.
PlateOCIOCDLTransformFusion Composite
Remove a CDL
Run the same correction in reverse before scene-linear VFX processing.
Graded PlateOCIOCDLTransform ReverseVFX Working Space
Troubleshooting
Common mistakes
Treating CDL as a full secondary grade
Applying the same CDL twice
Using slope/offset/power in an unintended color space
Production notes
Practical tips
Keep CDL transforms near clearly labeled color-space boundaries.
When matching editorial, verify both CDL values and the viewing transform; either can cause a mismatch.
Related nodes