---
license: mit
base_model: Alissonerdx/BFS-Best-Face-Swap
tags:
- lora
- face-swap
- comfyui
- dare
- pruning
---
# BFS (Best Face Swap) — Optimized & De-blurred LoRA Variants
This repository contains cleaned and optimized variations of the [Alissonerdx/BFS-Best-Face-Swap](https://huggingface.co/Alissonerdx/BFS-Best-Face-Swap) LoRA.
### Motivation & Problem
While the original BFS LoRA provides solid face swap transfer, it often introduces significant **blurriness, fine texture loss, and a plastic/soapy degradation** across skin areas.
To resolve this issue while retaining identity likeness, these variants were optimized using weight pruning and stochastic drop masking:
- **Pruning (20%)**: Removes the bottom 20% weakest/noisy weight layers that cause unwanted model drift and texture degradation.
- **DARE Drop Masking (without Rescaling)**: Random drop-masking (density 0.50–0.60) applied **without** magnitude rescaling. Skipping the rescaling step prevents artificial weight amplification, successfully stripping away soapy blur while keeping the facial structure intact.
---
### Available Variants
| File | Pruning & Masking | Description |
| :--- | :--- | :--- |
| `bfs_dare60-avgrank30.safetensors` | Drop Mask (density 0.60, no rescale), avg rank 30 | Gentle cleanup; preserves strong likeness while noticeably reducing original blur. |
| `bfs_prune20_dare50-avgrank26.safetensors` | 20% Pruned + Drop Mask (density 0.50, no rescale), avg rank 26 | Strongest de-blurring and detail retention; best for crisp skin textures and sharp eyes. |
| `bfs_prune20_dare60-avgrank30.safetensors` | 20% Pruned + Drop Mask (density 0.60, no rescale), avg rank 30 | Balanced profile: removes muddy blur while keeping likeness very close to the original. |
---
## Reference Inputs
| Reference Head (`ref_head.png`) | Reference Body (`ref_body.png`) |
| :---: | :---: |
| 
| 
|
---
## Visual Comparisons Across Seeds
The comparison grids below demonstrate:
1. **Base Model** (No LoRA applied)
2. **Original BFS LoRA** (Notice the blurriness and smoothed skin texture)
3. **Optimized Variants** (Pruned / DARE drop-masked versions restoring sharp details)
### Comparison — Seed 0
### Comparison — Seed 1
### Comparison — Seed 2
### Comparison — Seed 3
