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Ramon Guthrie
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# ComfyUI-RBG-SmartSeedVariance 🌱
<img src="https://img.shields.io/badge/ComfyUI-Compatible-blue?style=for-the-badge" alt="ComfyUI Compatible"><img src="https://img.shields.io/badge/Nodes-1-green?style=for-the-badge" alt="1 Nodes"><img src="https://img.shields.io/badge/Categories-1-orange?style=for-the-badge" alt="1 Category">
## Advanced Seed Diversity Enhancement for ComfyUI ✨
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Some generative models (like Z-Image Turbo and Qwen-Image) suffer from **limited seed variance** — changing the seed produces only subtle variations or nearly identical outputs. The **RBG Smart Seed Variance** node solves this by intelligently injecting controlled noise into text embeddings during generation, creating meaningful diversity while preserving your prompt intention.
---
![alt text](<Screenshot 2025-12-09 140138.png>)
## Feature List 🚀
- **7 Intelligent Presets:** Pre-configured variance levels from Subtle to Wild:
- **🌱 Subtle** - Gentle diversity for fine-tuning
- **🌿 Balanced** - Sweet spot for most use cases
- **🪴 Creative** - Unlock more artistic variations
- **🌳 Bold** - Significant structural changes
- **🌴 Wild** - Maximum diversity for exploration (Note this might break your prompt, use with caution!)
- **⚙️ Custom** - Fine-tune with percentage slider (0-100%)
- **7 Intelligent Presets:** Pre-configured variance levels from Subtle to Wild:
- **Model-Specific Optimization:** Automatic adjustment for your architecture:
- **Z-Image Turbo**, **Qwen-Image**, **Flux (Dev/Schnell)**, **Chroma HD**, **SDXL** and more!
- **🌱 Subtle** - Gentle diversity for fine-tuning
- **🌿 Balanced** - Sweet spot for most use cases
- **🪴 Creative** - Unlock more artistic variations
- **🌳 Bold** - Significant structural changes
- **🌴 Wild** - Maximum diversity for exploration (Note this might break your prompt, use with caution!)
- **⚙️ Custom** - Fine-tune with percentage slider (0-100%)
- **11 Direction Shift Patterns:** Apply structured artistic biases instead of pure random noise.
- **7 Spatial Fade Curves:** Control how noise fades across the embedding space.
- **Flexible Noise Injection Timing:** Control when variance is applied.
- **Prompt Token Protection:** Preserve specific parts of your prompt from noise.
- **Model-Specific Optimization:** Automatic adjustment for your architecture:
- **Z-Image Turbo**, **Qwen-Image**, **Flux (Dev/Schnell)**, **Chroma HD**, **SDXL** and more!
- **11 Direction Shift Patterns:** Apply structured artistic biases instead of pure random noise.
- **7 Spatial Fade Curves:** Control how noise fades across the embedding space.
- **Flexible Noise Injection Timing:** Control when variance is applied.
- **Prompt Token Protection:** Preserve specific parts of your prompt from noise.
---
![alt text](<Screenshot 2025-12-09 143429.png>)
![alt text](<Screenshot 2025-12-09 151729.png>)
## 📥 Installation
1. Clone this repository into your `ComfyUI/custom_nodes` directory:
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```bash
pip install -r requirements.txt
```
3. Restart ComfyUI.
3. Restart ComfyUI.
The node will appear under the **RBG Suite/Advanced** category.
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## 💡 Pro Tips
- **Start conservative:** Begin with "Balanced" preset and adjust up/down based on results
- **Experiment with directions:** Each artistic direction creates unique aesthetic shifts - try them all!
- **Protect your keywords:** Use "First Half" protection if important prompt concepts are being overridden
- **Track your seed:** Use consistent seeds to compare variance effects side-by-side
- **Model matters:** Always select the correct model type for optimal results and avoiding over-correction
- **Combine strategies:** Mix direction shifts with fade curves and noise injection timing for sophisticated effects
- **Use custom mode:** Fine-tune with the slider when presets don't match your needs exactly
- **Chain more then one:** For advanced effects, you can chain multiple Smart Seed Variance nodes.
- **Start conservative:** Begin with "Balanced" preset and adjust up/down based on results
- **Experiment with directions:** Each artistic direction creates unique aesthetic shifts - try them all!
- **Protect your keywords:** Use "First Half" protection if important prompt concepts are being overridden
- **Track your seed:** Use consistent seeds to compare variance effects side-by-side
- **Model matters:** Always select the correct model type for optimal results and avoiding over-correction
- **Combine strategies:** Mix direction shifts with fade curves and noise injection timing for sophisticated effects
- **Use custom mode:** Fine-tune with the slider when presets don't match your needs exactly
- **Chain more then one:** For advanced effects, you can chain multiple Smart Seed Variance nodes.
## Watch the Demo video 📺
<video controls src="Untitled video - Made with Clipchamp (1)_1.mp4" title="Title"></video>
---
## 🐛 Troubleshooting
**Output looks exactly the same?**
- Increase preset to "Bold" or "Creative"
- Check that the node is connected to your conditioning
- Verify model type is correct for your actual model
- Try a different seed value
**Quality degraded or image broken?**
- Reduce preset to "Subtle"
- Enable prompt protection ("First Half" or "First Quarter")
- Switch direction shift to "🚫 None" to use pure random
- Try "Ending Steps" to limit variance timing to fine details only
**Getting strange/unexpected outputs?**
- Reduce shift_strength to 50-70%
- Try a different direction shift pattern
- Verify ComfyUI version compatibility
---
## Usage 🚀
To use the `RBG Smart Seed Variance` node, connect it between your KSampler and the Conditioning input. This allows the node to modify the conditioning based on your chosen variance settings.