MachinePaintingNodes for ComfyUI - By MachinePainting
Professional color, blending, and utility tools for AI artists.
A growing collection of high-quality custom nodes focused on precise color correction, advanced image blending, boolean/conditional logic, and workflow utilities.
Features & Nodes
Color & Blending Tools
-
ColorAdjustBlend
Per-channel tonal adjustments (shadows, midtones, highlights) + blend modes with optional color overlay. -
ColorMatchBlend
Match hue, saturation, and overall color from a reference image to your target. -
ImageBlendPro
Advanced layer blending with 15+ Photoshop-style modes (normal, multiply, screen, overlay, soft_light, color, luminosity, etc.).
Utility & Control Nodes
-
Boolean Master Switch
Central boolean toggle to enable/disable entire branches or groups of nodes. -
Boolean Input Value Switch
Switch between two input values (e.g., numbers, strings, images) based on a boolean condition. -
Boolean Switch Value Output
Output different values depending on boolean state (great for dynamic parameters). -
Seed Boolean Lock
Locks the current generation's seed (opposed to locking for the next run) when boolean is true. -
Brightness Contrast Adjust Simple, precise control over brightness and contrast — useful as a quick post-process or in masked areas.
(Additional boolean utilities may be added soon — stay tuned!)
Node Details
ColorAdjustBlend
Fine-tune shadows, midtones, highlights per RGB channel.
| Parameter | Range | Effect |
|---|---|---|
| r/g/b_shadows | -100 to +100 | Lift dark areas |
| r/g/b_midtones | -100 to +100 | Balance middle tones |
| r/g/b_highlights | -100 to +100 | Control bright areas |
Optional Overlay:
- enable_color_overlay
- color_input (image)
- color_blend_mode (overlay, multiply, screen, etc.)
- color_input_opacity (0.0–1.0)
ColorMatchBlend
Match hue & saturation from a reference.
| Parameter | Range | Effect |
|---|---|---|
| target_image | — | Image to adjust |
| reference_image | — | Color source |
| strength | 0.0–1.0 | Blend intensity |
| saturation | -100 to +100 | Boost/reduce vibrance |
ImageBlendPro
Blend two images with Photoshop-grade modes.
| Blend Mode | Effect |
|---|---|
| normal | Standard overlay |
| multiply | Darken |
| screen | Lighten |
| overlay | Contrast boost |
| soft_light | Gentle contrast |
| color | Hue + saturation only |
| luminosity | Brightness only |
blend_amount: 0.0 (image1) → 1.0 (image2)
Boolean & Utility Nodes
These help create cleaner, more conditional workflows without spaghetti.
- Boolean Master Switch: One boolean to rule them all — bypass or activate whole sections.
- Boolean Input Value Switch: Choose value A or B based on condition.
- Boolean Switch Value Output: Similar but for outputs.
- Seed Boolean Lock: Freeze seed on true — prevents random changes mid-workflow.
- Brightness Contrast Adjust: Classic brightness/contrast sliders.
Installation
- In ComfyUI Manager: Search for "MachinePaintingNodes" (or add custom repo if not listed yet).
- Or manual:
cd ComfyUI/custom_nodes
git clone https://github.com/machinepainting/ComfyUI-MachinePaintingNodes.git
- Restart ComfyUI (or click "Restart" in Manager).
- Nodes appear under MachinePainting or utils categories.
No extra models required — pure Python nodes.
Usage Tips
- Chain ColorMatchBlend → ColorAdjustBlend → ImageBlendPro for pro-level color grading.
- Use boolean switches to A/B test styles without duplicating workflows.
- Lock seeds during refinement to keep variations controlled.
👾 Made by MachinePainting for the ComfyUI community.
Feedback/PRs welcome — drop an issue or star if ya dig!