OFX Plugin
OFX plugin for HALD generation and LUT extraction
The Nobe LutBake OFX plugin runs inside DaVinci Resolve and provides two operation modes: HALD generation and LUT extraction.
Operation Modes
HALD Generator
Overlays an identity HALD color pattern on the source footage. This pattern is used by the LUT Generator to determine how the color corrections affected each color value.
The menu bar app temporarily enables this node during capture and disables it afterward, so it does not interfere with your normal grading workflow.
LUT Generator
Reads the color-corrected HALD pattern and extracts a 3D LUT. The result is saved as a standard .cube file that can be used in any application that supports 3D LUTs.
Plugin Parameters
Mode
Both
HALD Generator or LUT Generator
HALD Level
Both
4, 8, 10, 12, or 16 — higher levels capture more color detail
LUT Size
LUT Generator
17³, 33³, 64³ (HALD 8 Native), 65³, or 100³ (HALD 10 Native)
Title
LUT Generator
Metadata for the .cube file header
Description
LUT Generator
Metadata for the .cube file header
Output Path
LUT Generator
File path for .cube export
Decimal Precision
LUT Generator
Decimal places in output (1-16, default 10)
Clamp Output 0..1
LUT Generator
Clamps LUT output values to [0, 1] before writing the .cube file (default: enabled)
Save LUT
LUT Generator
Button to manually trigger LUT extraction
By default, output clamping is enabled for maximum compatibility with LUT consumers that expect normalized output.
HALD Levels
The HALD level determines the precision of the color capture:
4
16³
Quick preview
8
64³
Recommended default — works with any HD or higher resolution
10
100³
High precision — works with 1080p or higher resolution
12
144³
Very high precision
16
256³
Maximum quality — requires 4K or higher resolution footage
For zero interpolation error, use a LUT size that matches the HALD native grid: 64³ for HALD 8 or 100³ for HALD 10. This produces a LUT that is mathematically identical to the original grade at all sampled points.
Both the HALD Generator and LUT Generator nodes must use the same HALD level. Mismatched levels will produce incorrect LUTs.
Manual Workflow (Without the App)
The OFX plugin can be used standalone without the menu bar app. See Manual LUT Capture for a step-by-step guide.
For best results, use YRGB color science in DaVinci Resolve when capturing LUTs.
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