Depth
Sets the processing/output precision.
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Color ManagementIntermediate
CineonLog
Log-to-linear and linear-to-log conversion
Converts imagery between logarithmic and linear representations with selectable log profiles, levels, gamma and soft clipping.
CineonLog
DaVinci Resolve · Fusion
Converts imagery between logarithmic and linear representations with selectable log profiles, levels, gamma and soft clipping.
Overview
What CineonLog does
Converts imagery between logarithmic and linear representations with selectable log profiles, levels, gamma and soft clipping.
Think of CineonLog as a technical gateway between log-encoded footage and the linear image math often preferred for compositing.
Mental model
Think of CineonLog as a technical gateway between log-encoded footage and the linear image math often preferred for compositing.
Common uses
Convert camera log to linear before compositing
Return a linear composite to log
Match technical handling across different log sources
Control black/white levels and highlight knee during conversion
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Input
Source image to process.
CineonLog
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Mode
Chooses Log to Lin or Lin to Log.
Log Type
Selects the relevant log curve such as Cineon, ARRI LogC, BMD Film, S-Log, V-Log or DaVinci Intermediate.
Lock R/G/B
Links the RGB channel controls so they change together.
Level
Controls black and white conversion levels.
Soft Clip (Knee)
Softens highlight clipping through the conversion.
Film Stock Gamma
Adjusts the source film/log gamma model.
Conversion Gamma
Controls the conversion response.
Conversion Table
Allows an external conversion table when required.
Practical setup
A reliable workflow
- 1
Identify the source log curve.
- 2
Choose Log to Lin before linear-light compositing or Lin to Log for the return path.
- 3
Set the correct Log Type.
- 4
Check levels and highlight knee.
- 5
Verify the round trip with scopes and a bypass comparison.
Typical node chain
Source→
CineonLog→
Output
Examples
Where this node fits in real work
Linear-light comp
Convert log footage before light-based effects.
MediaInCineonLog: Log to LinCompositeCineonLog: Lin to Log
Log normalization
Normalize a camera log plate before grading.
MediaInCineonLogColorCorrector
Troubleshooting
Common mistakes
Applying CineonLog before the image is in the technical state the node expects.
Pushing CineonLog too far before checking artifacts at full resolution.
Judging CineonLog on one still frame instead of checking motion and edge behavior.
Production notes
Practical tips
Compare CineonLog with bypass regularly while tuning it.
Keep CineonLog and other technical conversions separate from creative grading when possible.
After strong CineonLog processing, check alpha, highlights and image boundaries.
Related nodes