Preview & Selection

LUT Grid Preview

Select a frame in the Thumbnail Strip and the LUT Grid updates to show every LUT applied to that frame in a grid layout. Use the grid to visually compare LUT effects and narrow down candidates.

Basic Operations

Selecting a Frame

1. Click any frame in the Thumbnail Strip
2. The LUT Grid updates with the selected frame

Selecting a LUT

1. Click a cell in the grid to select a LUT
2. The selected cell is highlighted with a blue border

Adjusting Grid Size

• Use the scale slider in the header to adjust cell size from 160 to 800 px

Each cell shows the LUT name, its assigned comparison slot (if any), favorite status, and a "(Tone-only)" note for 1D LUTs.

None Cell

• The first cell in the grid is always None (no LUT applied)
• Input LUT tab: shows the original unprocessed image
• Look LUT tab: shows the image with only the Input LUT applied

Multi-Select Mode

1. Click the multi-select button in the header to enable
2. Checkboxes appear on each cell
3. Click cells to select multiple
4. ⌘+Click to toggle individual cells
5. ⇧+Click to select a range
6. All / None buttons to select all or deselect all

Context Menu (Right-Click)

Single Selection

Action	Description
Preview	Open the Preview Window for full-size preview
Favorite ♥	Mark the Input + Look combination as a favorite (red heart) → a title input sheet appears
Input/Look Favorite	Mark the individual LUT as a favorite (yellow)
Set as A / B / C...	Assign to a comparison slot
Remove from slot	Remove the slot assignment
Save As...	Export the image as JPEG/PNG

Multi-Selection

Action	Description
Favorite / Unfavorite (X items)	Batch add or remove combination favorites
Input/Look Favorite / Unfavorite (X items)	Batch add or remove LUT favorites
Save As... (X items)	Batch export all selected cells

Double-Click

Double-clicking a cell auto-assigns it to slots A/B and opens the Compare Window.

Input LUT & Look LUT

LUTScope applies LUTs in a 2-stage pipeline: Input LUT (technical) and Look LUT (creative). This separates the camera Log conversion from creative color grading, letting you manage each independently.

Pipeline

Input LUT (camera.filters icon)

• Purpose: A technical LUT that converts camera Log footage to Rec.709 or linear
• Examples: S-Log3 to Rec.709, LogC to Rec.709
• Application: Always applied at 100% intensity
• Tab: Select from the "Input LUT" tab in the LUT Grid

Look LUT (eye icon)

• Purpose: A creative LUT that adds a color grade or look to the footage
• Examples: Film Emulation, Cinematic Look
• Application: Adjustable from 0% to 200% intensity (in the Preview Window)
• Tab: Select from the "Look LUT" tab in the LUT Grid

Tab Switching

1. Click the Input LUT / Look LUT tabs in the LUT Grid header
2. Input LUT tab: the grid shows the list of Input LUTs
3. Look LUT tab: the grid shows the list of Look LUTs (the selected Input LUT name is displayed on the tab)

Typical Workflow

1. Select a Log-to-Rec.709 conversion LUT on the Input LUT tab
2. Switch to the Look LUT tab
3. The Look LUT list previews with the Input LUT already applied
4. Select a Look LUT you like
5. Adjust intensity (0–200%) in the Preview Window as needed

1D LUT Note

• 1D LUT: Tone conversion only (no hue or saturation changes). Displayed with an orange [1D] badge
• 3D LUT: Converts hue, saturation, and luminance. Displayed with a cyan [3D] badge
• Using a 1D LUT as a Look LUT triggers a warning ("A 1D LUT performs tone conversion only. A 3D LUT is recommended for Look usage.")

LUT Sidebar

The left sidebar integrates a folder tree, search, and favorite filters for your LUT library. Toggle visibility with ⌘1.

Folder Tree

• Folders are displayed hierarchically with disclosure triangles (▶) to expand/collapse
• Each folder shows a LUT count badge like "(5)"
• Click a folder to filter the grid to that folder's LUTs only (click again to clear)
• Right-click → Show in Finder to open the folder in Finder

Search

1. Type in the sidebar search field (magnifying glass icon + mode icon)
2. LUTs are filtered in real time by name
3. Search results also show the folder path
4. The × button clears the search

Favorite Filter Badge

Click the yellow "Favorite" badge at the right end of the search field to toggle the Input/Look LUT favorite filter.

The footer shows how many LUTs are loaded and your favorite counts for Input and Look LUTs. When a folder filter is active, a Show All button lets you clear it and see the full list again.

Favorite System (3 Types) & Titling

LUTScope provides three distinct favorite types to record your LUT evaluations at different levels of specificity — from a single LUT to a precise Input + Look combination.

1. Assignment Favorite (♥ Red Heart) + Custom Title

• Target: A specific Input LUT + Look LUT combination
• Icon: Red heart (heart.fill)
• Purpose: Record “this Input LUT paired with this Look LUT is great”
• Example: Input “ARRI LogC to Rec709” + Look “Film Look A” → register this exact pair as a favorite
• How to register: Grid context menu → Favorite ♥ → enter a title (up to 50 characters, auto-numbered as “Favorite N” if left blank) → Save

2. Input LUT Favorite ( Yellow camera.filters)

• Target: A single Input LUT (available only in Input LUT mode)
• Icon: Yellow camera.filters icon
• Purpose: Record “this Input LUT is good” — regardless of which Look LUT is paired with it
• Example: Mark “ARRI LogC to Rec709” alone as a favorite
• How to register: Sidebar favorite toggle or grid context menu
• Filter: Yellow camera.filters icon in the grid header / yellow Favorite badge in the sidebar search field

3. Look LUT Favorite ( Yellow eye)

• Target: A single Look LUT (available only in Look LUT mode)
• Icon: Yellow eye icon
• Purpose: Record “this Look LUT is good” — regardless of which Input LUT is applied upstream
• Example: Mark “Film Look A” alone as a favorite
• How to register: Sidebar favorite toggle or grid context menu
• Filter: Yellow eye icon in the grid header

Where Favorites Are Used

Feature	How favorites are used
Sidebar filter	Filter the LUT list by red heart / Input Favorite / Look Favorite to focus on shortlisted LUTs
LUT Summary	Export a text file listing all selections in 4 sections: Assignment Favorites / Slot Assignments / Input Favorites / Look Favorites
LUT Summary Package	Export LUT files + rendered preview images organized into subfolders: Favorite preview / Slot preview / Input favorite preview / Look favorite preview

Recommended Workflow

1. Load video or stills and register your Input LUT and Look LUT folders
2. In the LUT Grid (Input LUT mode), mark promising Input LUTs with Input Favorite (yellow)
3. Switch to Look LUT mode and mark promising Look LUTs with Look Favorite (yellow)
4. For combinations you especially like, add an Assignment Favorite (red heart) with a descriptive title
5. Use LUT Summary to save and share your selections as a text list
6. Use LUT Summary Package to bundle the selected LUT files and preview images for your editing team

Filter Controls

Three filter toggles in the LUT Grid header:

1. Slot Filter (character.textbox icon): Show only cells assigned to comparison slots
2. Assignment Favorite Filter (red heart): Show only red-heart favorites
3. Input/Look Favorite Filter (yellow camera.filters / eye): Show only yellow favorites

Rules

Favorite Section

The Favorite Section panel at the bottom of the sidebar lists all registered combination favorites (red heart), providing search and quick access.

Steps

1. Locate the Favorite Section panel at the bottom of the sidebar
2. Drag the handle at the top of the panel to resize it
3. Search by title using the search field (placeholder: "Title")
4. Click a favorite row to instantly load its combination (Input LUT + Look LUT)

Row Contents

Each favorite row displays:

• Red heart icon
• Custom title (or auto-title "Favorite N")
• Input LUT name + Look LUT name
• Availability indicator: grayed out if the LUT is not in a currently active folder

Context Menu

• Unfavorite: Remove the favorite