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.

Resolve may also show Nobe LutBake (Legacy) for projects created with the older plugin registration. Use Nobe LutBake for new projects; the Legacy entry remains available so existing projects continue to load.

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, 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:

Level	Native LUT Size	Use Case
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.