22 KiB
Majoor Assets Manager - Viewer Feature Tutorial
Version: 2.4.5 Last Updated: April 15, 2026
Overview
The Majoor Assets Manager provides two viewer experiences:
1. Majoor Floating Viewer (MFV) — NEW! 🎉
A lightweight, draggable floating panel for real-time generation comparison:
- Live Stream Mode: Automatically follows new generations and is enabled by default
- KSampler Preview: Streams denoising-step previews in the MFV and is enabled by default
- Compare Modes: Simple, A/B Compare, Side-by-Side, Grid Compare (up to 4 assets)
- Multi-Pin References (A/B/C/D): Pin up to 4 images simultaneously for comparison
- Node Parameters Sidebar: Edit workflow node widgets directly in the viewer
- Run Button: Queue prompt from viewer toolbar without switching to canvas
- Node Tracking: Click nodes to preview their content
- Real-time Updates: Watch generations as they complete
- Portable: Move anywhere on screen, resize, dock
Best for: Real-time workflow monitoring, quick comparisons, node preview, parameter tweaking
2. Standard Viewer
A full-featured overlay viewer with advanced analysis tools:
- Enhancement Tools: Exposure, gamma, channel isolation
- Analysis Tools: False color, zebra, histogram, waveform, vectorscope
- Visual Overlays: Grid, pixel probe, loupe
- Video Controls: Timeline, in/out points, speed control
Best for: Detailed analysis, quality inspection, metadata review
Table of Contents
Majoor Floating Viewer (MFV)
- Opening the Floating Viewer
- Live Stream Mode
- Compare Modes
- Multi-Pin References (A/B/C/D)
- Node Parameters Sidebar
- Sidebar Position Setting
- Node Tracking
- MFV Controls
- MFV Keyboard Shortcuts
Standard Viewer
- Opening the Standard Viewer
- Viewer Layout
- Viewer Navigation
- Image Enhancement Tools
- Analysis Tools
- Visual Overlays
- Professional Analysis Tools (Scopes)
- Video-Specific Features
- Export Capabilities
- Standard Viewer Hotkeys
Both Viewers
Majoor Floating Viewer (MFV)
Opening the Floating Viewer
There are several ways to open the Majoor Floating Viewer:
Method 1: Toolbar Button
- Open the Assets Manager panel
- Click the Floating Viewer button in the toolbar (icon: overlapping rectangles)
- The MFV panel appears on screen
Method 2: Context Menu
- Right-click on any asset in the grid
- Select "Open in Floating Viewer"
- The MFV panel opens with that asset
Method 3: Node Tracking
- Click on any LoadImage or SaveImage node in ComfyUI
- The MFV automatically opens (if enabled in settings)
- Shows the node's current content
Method 4: Keyboard Shortcut
- Press Ctrl+V (or Cmd+V on macOS) while the Assets Manager panel is hovered or focused to toggle the Floating Viewer
Live Stream Mode
Live Stream Mode automatically tracks new generations in real-time.
Default behavior:
- Live Stream starts enabled by default
- KSampler Preview also starts enabled by default
- You can change both in Settings → Majoor Assets Manager › Viewer
Enabling Live Stream
- Open the Floating Viewer
- Click the Live Stream button (icon: broadcast tower)
- Or press L to toggle
How It Works
- Monitors ComfyUI execution events
- Automatically switches to newly generated images
- Follows SaveImage/LoadImage node outputs
- No manual refresh needed
Use Cases
- Workflow Development: Watch intermediate results
- Batch Generation: Monitor progress across multiple prompts
- Parameter Tuning: See changes in real-time
- Node Debugging: Track data flow through workflow
Compare Modes
The MFV supports three comparison modes:
Simple Mode (Default)
- Single image display
- Full resolution preview
- Standard navigation
Shortcut: Press M until Simple mode is active
A/B Compare Mode
- Toggle between two images rapidly
- Click asset to set as A or B
- Useful for subtle difference detection
How to Use:
- Enable A/B Compare mode (press M)
- Click first asset → Set as A
- Click second asset → Set as B
- Click or press Tab to toggle between them
Use Cases:
- Compare different sampler results
- Check before/after edits
- Evaluate parameter changes
Side-by-Side Mode
- Display both images simultaneously
- Split view (vertical or horizontal)
- Synchronized zoom and pan
How to Use:
- Enable Side-by-Side mode (press M)
- Select two assets
- Both display side by side
- Use \ to toggle split orientation
Use Cases:
- Direct visual comparison
- Composition analysis
- Color grading comparison
Multi-Pin References (A/B/C/D)
The Multi-Pin system lets you pin up to 4 reference images simultaneously for comparison.
How It Works
- Open the Floating Viewer
- In the toolbar, locate the A B C D toggle buttons next to the mode button
- Click a letter to pin the currently displayed image to that slot
- Click the same letter again to unpin it
- Multiple slots can be active at the same time
Pin Behavior
- Pinned slots are locked: When Live Stream brings in a new generation, pinned slots keep their content while unpinned slots update automatically
- Compare with pins: In A/B or Side-by-Side mode, pin A as a reference and let B follow live generations to compare every new result against a fixed baseline
- Multi-pin in Grid Compare: Pin A, B, C, and D to lock 4 images for simultaneous comparison in Grid Compare mode
Use Cases
- Baseline comparison: Pin your best result in slot A and iterate freely
- Parameter sweep: Pin 4 different sampler results and compare visually
- Before/after editing: Pin the original in A, the edited version in B
Node Parameters Sidebar
The Node Parameters sidebar displays and lets you edit the ComfyUI node widgets directly inside the Floating Viewer.
Opening the Sidebar
- Open the Floating Viewer
- Click the Node Parameters button (sliders icon) in the toolbar — it is located at the far right of the toolbar
- The sidebar slides open on the right (default position)
What It Shows
- All widgets from the workflow node that produced the current image
- Grouped by node: each node section has a colored header showing the node title
- Widget types supported: text fields, number inputs, combo/dropdown selectors, toggles
Editing Widgets
- Text fields: Click and type. Long text (prompts) use a resizable text area
- Click the expand button (↕) to toggle between collapsed (80px) and expanded (680px) height
- Text labels appear above the text area for better readability
- Numbers: Type a value or use the stepper
- Combos: Select from the dropdown list
- Changes are applied back to the ComfyUI graph in real time
Run Button
The Run (▶) button at the far right of the toolbar queues the current workflow, allowing you to iterate without switching back to the ComfyUI canvas.
Use Cases
- Prompt iteration: Edit the positive/negative prompt and re-run without leaving the viewer
- Seed tweaking: Change the seed value and queue immediately
- Sampler comparison: Switch samplers from the sidebar and compare outputs
- CFG tuning: Adjust CFG scale and see results in real time via Live Stream
Sidebar Position Setting
You can change where the Node Parameters sidebar appears inside the Floating Viewer.
Changing the Position
- Go to Settings → Majoor Assets Manager › Viewer
- Find Node Parameters sidebar position
- Select one of:
- right (default) — sidebar opens on the right side
- left — sidebar opens on the left side
- bottom — sidebar opens at the bottom as a horizontal panel
- The change applies immediately — no page reload required
Recommendations
- Right works best for most layouts and screen sizes
- Left is useful when your ComfyUI canvas is on the right
- Bottom is ideal for wide screens or when you prefer a short, wide parameter panel
Node Tracking
Node Tracking lets you preview node content instantly:
Enabling Node Tracking
- Open the Floating Viewer
- Click the Node Tracking button (icon: node graph)
- Or press N to toggle
How It Works
- Click any LoadImage node → Preview that image
- Click any SaveImage node → Preview generated output
- Click intermediate nodes → See their current state
- Automatically updates when node content changes
Use Cases
- Debugging: Check intermediate tensor values
- Workflow Building: Verify node connections
- Quality Control: Inspect outputs at each stage
- Teaching: Show workflow data flow
MFV Controls
Panel Controls
- Move: Drag from panel header
- Resize: Drag panel edges or corners
- Close: Click X button or press Esc
- Minimize: Click minimize button (optional)
Zoom & Pan
- Zoom In: Mouse wheel up or Up Arrow
- Zoom Out: Mouse wheel down or Down Arrow
- Reset Zoom: Press 0 (fit to screen)
- Actual Size: Press 1 (1:1 pixel)
- Pan: Click and drag when zoomed in
Navigation
- Previous Asset: Left Arrow when the inline player is not focused
- Next Asset: Right Arrow when the inline player is not focused
- First Asset: Home
- Last Asset: End
MFV Keyboard Shortcuts
General
| Shortcut | Action |
|---|---|
| Esc | Close Floating Viewer |
| C | Cycle compare modes: A/B, Side-by-side, Off (Simple mode) |
| K | Toggle KSampler preview on or off |
| L | Toggle Live Stream on or off |
| N | Toggle Node Tracking |
Compare Mode
| Shortcut | Action |
|---|---|
| Tab | Swap A/B Images |
| \ | Toggle Split Orientation |
Video Controls
| Shortcut | Action |
|---|---|
| Space | Play/Pause the focused inline player |
| Left Arrow | Step backward one frame |
| Right Arrow | Step forward one frame |
Tip: click once on the MFV media player to focus it, then use the playback keys above. The Gen Info overlay remains visible and automatically sits above the player controls when they are present.
See HOTKEYS_SHORTCUTS.md for complete shortcut list.
Standard Viewer
Viewer Navigation
Basic Navigation
- Zoom: Use mouse wheel to zoom in/out
- Pan: Click and drag to move around the image
- Fit to Screen: Automatically scales image to fit window
- Actual Size: View image at 1:1 pixel ratio (Alt+1)
Asset Navigation
- Next/Previous: Navigate between assets in the current set
- Keyboard Arrows: Use arrow keys to move between assets
- Direct Selection: Click on thumbnails if available
Image Enhancement Tools
Exposure Adjustment (EV)
The exposure adjustment tool allows you to modify the brightness of your image:
-
Accessing the Tool:
- Locate the exposure control in the toolbar
- Usually represented by a sun or EV icon
-
Adjusting Exposure:
- Adjust exposure compensation from -5 to +5 EV
- Real-time preview shows changes immediately
- Use to evaluate details in shadows/highlights
- Preserves color relationships while adjusting brightness
-
Use Cases:
- Revealing details in underexposed areas
- Recovering highlights in overexposed regions
- Comparing exposure differences between assets
- Evaluating dynamic range
Gamma Correction
Gamma correction adjusts the midtone brightness:
-
Accessing the Tool:
- Find the gamma control in the toolbar
- Usually labeled with γ or gamma symbol
-
Adjusting Gamma:
- Adjust gamma curve from 0.25 to 4.0
- Alters midtone brightness without affecting highlights/shadows as much
- Real-time application with live preview
- Useful for fine-tuning contrast in specific tonal ranges
-
Use Cases:
- Enhancing midtone contrast
- Adjusting overall tonal balance
- Fine-tuning for display characteristics
- Preparing for different output conditions
Channel Isolation
The viewer allows you to isolate different color channels:
-
Available Channels:
- RGB: View all color channels combined
- R: View only red channel information
- G: View only green channel information
- B: View only blue channel information
- Alpha: View transparency/alpha channel
- Luma: View luminance information only
-
Using Channel Isolation:
- Select the desired channel from the toolbar
- Observe the isolated channel information
- Compare between different channels
- Identify channel-specific issues
-
Use Cases:
- Identifying color channel imbalances
- Detecting channel-specific noise
- Analyzing alpha channel transparency
- Evaluating luminance distribution
Analysis Tools
False Color Mode
False color mode helps identify exposure issues:
-
Activating False Color:
- Enable false color mode from the toolbar
- Usually represented by a color palette icon
-
Interpreting Results:
- Identifies overexposed and underexposed areas
- Highlights clipped highlights (typically white/magenta)
- Shows blocked shadows (typically blue/black)
- Helps evaluate dynamic range and exposure
-
Use Cases:
- Checking for highlight clipping
- Identifying shadow detail loss
- Evaluating overall exposure balance
- Comparing exposure between different assets
Zebra Patterns (Z)
Zebra patterns indicate areas approaching clipping:
-
Enabling Zebra:
- Activate zebra patterns from the toolbar
- Usually labeled with "Z" or zebra icon
-
Understanding Zebra:
- Displays 100% IRE (95% for Rec.2020) areas as zebra stripes
- Helps identify areas approaching clipping
- Adjustable threshold levels
- Useful for maintaining highlight detail
-
Use Cases:
- Protecting highlight detail
- Setting optimal exposure levels
- Comparing exposure between shots
- Quality control for consistent exposure
Visual Overlays
Grid Overlays (G)
Grid overlays assist with composition:
-
Available Grid Types:
- Off: No grid overlay
- Thirds: Rule of thirds grid lines
- Center: Center crosshair
- Safe Area: TV broadcast safe area guides
- Golden Ratio: Golden ratio composition guides
-
Using Grid Overlays:
- Cycle through grid types using "G" key
- Assess compositional balance
- Align elements to grid lines
- Compare compositions between assets
-
Use Cases:
- Composition analysis
- Alignment verification
- Rule of thirds evaluation
- Broadcast compliance checking
Pixel Probe (I)
Pixel probe provides detailed pixel information:
-
Activating Pixel Probe:
- Enable pixel probe from toolbar or press "I"
- Hover over image to see information
-
Information Provided:
- Exact pixel coordinates
- RGB/RGBA values at cursor position
- Hex color code
- Luminance value information
-
Use Cases:
- Color accuracy verification
- Detail inspection
- Color sampling
- Quality assessment at pixel level
Loupe Magnification (L)
Loupe provides magnified view of specific areas:
-
Using Loupe:
- Activate loupe from toolbar or press "L"
- Hover over area of interest
- View magnified representation
-
Features:
- Adjustable magnification level
- Shows fine detail at pixel level
- Helpful for quality assessment
- Real-time magnification
-
Use Cases:
- Quality inspection
- Artifact detection
- Detail analysis
- Sharpness evaluation
Professional Analysis Tools (Scopes)
Histogram
The histogram shows tonal distribution:
-
Accessing Histogram:
- Enable from scopes section
- Shows RGB channel distribution
-
Interpretation:
- X-axis represents tonal range (shadows to highlights)
- Y-axis represents pixel count
- Separate curves for R, G, B channels
- Identifies tonal distribution patterns
-
Use Cases:
- Exposure evaluation
- Contrast analysis
- Color balance assessment
- Dynamic range evaluation
Waveform
The waveform shows luminance distribution:
-
Accessing Waveform:
- Enable from scopes section
- Shows luminance across image
-
Interpretation:
- Horizontal axis represents image width
- Vertical axis represents luminance levels
- Brighter areas appear higher in the display
- Darker areas appear lower in the display
-
Use Cases:
- Exposure evaluation
- Luminance distribution analysis
- Highlight/shadow placement
- Consistency checking
Vectorscope
The vectorscope shows color information:
-
Accessing Vectorscope:
- Enable from scopes section
- Shows color information in chromaticity diagram
-
Interpretation:
- Shows color saturation and hue
- Identifies color distribution
- Reveals color casts or imbalances
- Shows skin tone placement
-
Use Cases:
- Color balance correction
- Skin tone evaluation
- Saturation assessment
- Color cast identification
Video-Specific Features
Video Playback Controls
- Play/Pause: Standard play/pause functionality
- Loop/Once: Toggle between continuous and single playback
- Speed Control: Adjustable playback speed (0.25x to 4x)
- Frame Stepping: Precise frame-by-frame navigation (Left/Right Arrow keys when player bar is focused)
Timeline Features
- Seek Bar: Drag to jump to specific points in video
- Current Time: Display of current playback position
- Duration: Total video duration display
- Frame Counter: Current frame number display
In/Out Points
- Set In Point: Mark start of desired segment (I key)
- Set Out Point: Mark end of desired segment (O key)
- Segment Playback: Play only the marked segment
- Clear Points: Remove In/Out markers
Hardware Acceleration (WebGL)
The viewer automatically detects WebGL support to enable GPU-accelerated video rendering:
- Benefits: Real-time Exposure, Gamma, and Zebra analysis on 4K videos without CPU load
- Fallback: If WebGL is unavailable, it automatically switches to a robust CPU-based renderer (Canvas 2D)
Export Capabilities
Save Current Frame
- Capture current video frame as PNG
- Preserves full resolution and quality
- Saves to default output directory
- Includes generation metadata if available
Copy to Clipboard
- Copy current view to system clipboard
- Best-effort format selection
- May not work on all platforms
- Useful for quick sharing
Download Original
- Download the original asset file
- Maintains original format and quality
- Preserves embedded metadata
- Safe file transfer protocol
Viewer Hotkeys
All viewer hotkeys are captured and don't affect ComfyUI or browser:
- Esc: Close viewer
- 0-5: Set rating (single view)
- Left/Right Arrow: Step video frames (when player bar is focused)
- F: Toggle fullscreen
- Z: Toggle zebra patterns
- G: Cycle through grid overlays
- I: Toggle pixel probe
- L: Toggle loupe magnification
- C: Copy last probed color hex value
- Alt+1: Toggle 1:1 zoom
Comparison Integration
The viewer seamlessly integrates with the comparison feature:
- Switch between single view and comparison modes
- Maintain analysis tools during comparison
- Apply enhancements to both compared assets
- Use analysis tools on comparison results
Troubleshooting Viewer Issues
Performance Problems
- Slow Rendering: Reduce enhancement effects or close other applications
- Memory Issues: Close viewer tabs when not actively using them
- Codec Problems: Install appropriate codecs for video files
- Browser Compatibility: Ensure using supported browsers
Tool Malfunctions
- Missing Tools: Verify WebGL support in your browser
- Unresponsive Controls: Refresh the viewer or browser
- Display Issues: Check browser zoom level and display settings
- Audio Problems: Check system audio settings for video files
File-Specific Issues
- Unsupported Formats: Convert to supported formats if needed
- Corrupted Files: Verify file integrity
- Large Files: Be patient with initial loading of large files
- Network Issues: Ensure stable connection for remote files
Best Practices
Efficient Viewing
- Use keyboard shortcuts for faster navigation
- Apply analysis tools systematically
- Take advantage of export features for sharing
- Use comparison modes for parameter evaluation
Quality Assessment
- Use pixel probe for detailed inspection
- Apply false color to check exposure
- Use zebra patterns to protect highlights
- Employ scopes for professional analysis
Workflow Integration
- Combine viewer tools with rating system
- Use export features for review workflows
- Integrate with collection management
- Apply consistent analysis methodology
Performance Optimization
- Close viewers when not actively using them
- Use lower resolution previews when possible
- Organize assets into collections to reduce load times
- Keep frequently accessed assets in smaller collections
Viewer Feature Tutorial Version: 2.4.5 Last Updated: April 14, 2026