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

Parameter	Mode	Description
Mode	Both	HALD Generator or LUT Generator
HALD Level	Both	4, 8, 12, or 16 — higher levels capture more color detail
LUT Size	LUT Generator	17x17x17, 33x33x33, or 65x65x65
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 (1-10, default 6)
Save LUT	LUT Generator	Button to manually trigger LUT extraction

HALD Levels

The HALD level determines the precision of the color capture:

Level	Use Case
4	Quick preview
8	Recommended default — works with any HD or higher resolution
12	High precision
16	Maximum quality — requires 4K or higher resolution footage

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 also be used standalone without the menu bar app:

1. Set up HALD Generator and LUT Generator nodes as described in Getting Started.

2. In the LUT Generator node, set the Output Path to your desired .cube file location.

3. Configure LUT Size and other parameters.

4. Enable the HALD Generator node.

5. Click the Save LUT button in the LUT Generator node.

6. Disable the HALD Generator node.

This manual workflow does not require the menu bar app.

For best results, use YRGB color science in DaVinci Resolve when capturing LUTs.