Update README.md

README.md

@@ -22,4 +22,57 @@ These are provided as-is, and YMMV. The user is responsible for any outputs prod
 
 Other models involved in these merges include:
 - [comin/IterComp](https://huggingface.co/comin/IterComp)
-- [CyberRealistic XL](https://civitai.com/models/312530/cyberrealistic-xl)
+- [CyberRealistic XL](https://civitai.com/models/312530/cyberrealistic-xl)
+
+
+## Methods
+
+Perpendicular merges are done via [sd-mecha](https://github.com/ljleb/sd-mecha) using the Python API, for example:
+
+<details><summary>1) Merge noobaiXLNAIXL_vPred10Version-cyberrealistic4-perpendicular</summary>
+  
+```python
+import sd_mecha
+sd_mecha.set_log_level()
+
+
+text_encoder_recipe = sd_mecha.model("noobaiXLNAIXL_vPred10Version.safetensors", "sdxl")
+
+unet_recipe = sd_mecha.add_perpendicular(
+    sd_mecha.model("noobaiXLNAIXL_vPred10Version.safetensors", "sdxl"),
+    sd_mecha.model("cyberrealisticXL_v4.safetensors", "sdxl"),
+    sd_mecha.model("sd_xl_base_1.0_0.9vae.safetensors", "sdxl"),
+)
+
+recipe = sd_mecha.weighted_sum(
+    text_encoder_recipe,
+    unet_recipe,
+    alpha=(
+        sd_mecha.blocks("sdxl", "txt") |
+        sd_mecha.blocks("sdxl", "txt2") |
+        sd_mecha.default("sdxl", "unet", 1)
+    ),
+)
+
+merger = sd_mecha.RecipeMerger(
+    models_dir=r"C:\path\to\models\directory",
+)
+
+merger.merge_and_save(recipe, output="output.safetensors")
+```
+
+</details><br>
+
+<details><summary>2) Add v_pred and ztsnr keys to the resulting model for autodetection in Comfy/Forge</summary>
+
+```python
+from safetensors.torch import load_file, save_file
+import torch
+
+state_dict = load_file("output.safetensors")
+state_dict["v_pred"] = torch.tensor([])
+state_dict["ztsnr"] = torch.tensor([])
+save_file(state_dict, "noobaiXLNAIXL_vPred10Version-cyberrealistic4-perpendicular.safetensors")
+```
+
+</details><br>