Claude
963e73a894
Based on user testing, per-region strength is REQUIRED: - Both regions at 2.0: car appears, giraffe doesn't - Car 2.0, giraffe 4.0: BOTH appear correctly Changes: - Added region1_strength, region2_strength, region3_strength, region4_strength inputs - Set progressive defaults: 2.5, 3.5, 4.0, 4.0 (later regions need more strength) - Updated function to use per-region strengths instead of canvas values - Fixed CFG guidance: Base Flux uses CFG 1.0 ONLY (no negative prompt) - Updated CONTEXT.md with critical findings Why per-region strength: - Background conditioning competes with regional conditioning - Later regions need progressively higher strength to appear - Global strength doesn't work - each region needs independent control
ComfyUI Regional Conditioning
Control different parts of your image with separate prompts using visual box drawing.
Quick Start
- Install: Clone to
ComfyUI/custom_nodes/or use ComfyUI Manager - Add Node: Search for "Regional Prompter"
- Connect: CLIP → Regional Prompter → Sampler
- Draw: Use canvas to position regions, type prompts
- Generate: Connect to your sampler and run
Nodes
Regional Prompter (Mask-Based)
For: Flux, Chroma, SD3, SD3.5, Qwen-Image
Inputs:
clip: CLIP from checkpointwidth/height: Must match your latent dimensionssoften_masks: Feathering at edges (recommended ON)background_prompt: Scene descriptionregion1-4_prompt: Region-specific prompts
Tips:
- Use CFG 1.0-3.5 with Flux (higher = blur)
- Keep to 3-4 regions max for Flux/Chroma
- Default strength 0.8 works well
Regional Prompter (Area-Based)
For: SD1.5, SD2.x, SDXL
Same interface, uses area-based conditioning instead of masks.
Canvas Controls
- index: Select which region to edit
- box_x, box_y: Region top-left position
- box_w, box_h: Region dimensions
- strength: Conditioning strength (0-10, default 0.8)
Example Workflow
Checkpoint Loader
├→ CLIP → Regional Prompter (Mask-Based)
│ ├ width: 1024
│ ├ height: 1024
│ ├ soften_masks: true
│ ├ background: "city street"
│ ├ region1: "red sports car"
│ └ region2: "street vendor"
├→ MODEL → KSampler ← conditioning
└→ VAE → VAE Decode
Troubleshooting
Regions not showing:
- Check width/height match your latent exactly
- Try lower CFG (1.0-2.0) with Flux
- Verify boxes aren't outside image bounds
Validation errors:
- Ensure width/height are multiples of 64
- Check no regions overlap fullscreen
Blurry output:
- Lower CFG (Flux likes 1.0-3.5)
- Try strength 0.6-0.8 instead of 1.0
Advanced Nodes
Original nodes available for complex workflows:
- Multi Area Conditioning: Area-based, requires external CLIP encode
- Multi Area Conditioning Mask: Mask-based, requires external CLIP encode
- Multi Latent Composite: Visual latent compositing with feathering
Credits
Based on visual area conditioning by Davemane42.
Maintained by EnragedAntelope - github.com/EnragedAntelope/ComfyUI_RegionalConditioning
License
MIT License - use freely in personal and commercial projects.