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Raykosan-ComfyUI_RaykoStudio/Rayko_Models_Loader.py
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Python

# SPDX-License-Identifier: Apache-2.0
# Copyright 2025-2026 Raykosan (RaykoStudio)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import folder_paths
import comfy.sd
import torch
import json
import os
from nodes import UNETLoader, CLIPLoader, VAELoader, LoraLoader, DualCLIPLoader
from server import PromptServer
import aiohttp
CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
PRESETS_DIR = os.path.join(CURRENT_DIR, "preset_models")
if not os.path.exists(PRESETS_DIR):
os.makedirs(PRESETS_DIR)
class RaykoModelsLoader:
@classmethod
def INPUT_TYPES(cls):
unet_files = folder_paths.get_filename_list("unet")
clip_files = folder_paths.get_filename_list("clip")
vae_files = folder_paths.get_filename_list("vae")
vae_files_with_pixel = vae_files + ["pixel_space"]
weight_dtype_opts = ["default", "fp8_e4m3fn", "fp8_e4m3fn_fast", "fp8_e5m2"]
clip_type_opts = [
"stable_diffusion", "stable_cascade", "sd3", "flux", "flux2", "lumina2", "ideogram4", "qwen_image", "boogu", "krea2", "ltxv", "wan", "ace", "hunyuan_image", "hidream", "chroma", "mochi", "cosmos", "pixart", "kolors", "ultrapix", "omnigen2", "ovis", "longcat_image", "cogvideox", "lens", "pixeldit",
]
device_opts = ["default", "cpu", "cuda"]
required = {
"unet_name": (unet_files, {"tooltip": "Diffusion model (UNET)"}),
"weight_dtype": (weight_dtype_opts, {"default": "default"}),
"use_clip2": ("BOOLEAN", {"default": False, "label": "Enable second CLIP"}),
"clip_name": (clip_files, {"tooltip": "First CLIP model (or primary CLIP for dual mode)"}),
"clip_name2": (clip_files, {"tooltip": "Second CLIP model (for dual-clip models like Flux, SD3)"}),
"clip_type": (clip_type_opts, {"default": "stable_diffusion"}),
"clip_device": (device_opts, {"default": "default"}),
"vae_name": (vae_files_with_pixel, {"tooltip": "model VAE (includes pixel_space for direct pixel manipulation)"}),
"lora_data": ("STRING", {"default": "[]", "multiline": False, "forceInput": False}),
}
return {"required": required}
RETURN_TYPES = ("MODEL", "CLIP", "VAE")
RETURN_NAMES = ("MODEL", "CLIP", "VAE")
FUNCTION = "load_models"
CATEGORY = "🦊 RaykoStudio"
DESCRIPTION = "The node combines the loaders of the model, clip, vae and lore. Presets allow quick switching between model configurations (UNET/CLIP/VAE) without affecting LoRA settings."
@classmethod
def IS_CHANGED(cls, lora_data="[]", **kwargs):
import hashlib
if lora_data is None:
lora_data = "[]"
return hashlib.md5(lora_data.encode()).hexdigest()
def load_models(self, unet_name, weight_dtype, use_clip2, clip_name, clip_name2, clip_type, clip_device, vae_name, lora_data="[]"):
print(f"\n[Rayko] === Start load_models ===")
print(f"[Rayko] lora_data RAW: {lora_data}")
print(f"[Rayko] use_clip2: {use_clip2}")
if not lora_data:
lora_data = "[]"
wd = None if weight_dtype == "default" else weight_dtype
model = UNETLoader().load_unet(unet_name=unet_name, weight_dtype=wd)[0]
print(f"[Rayko] UNET: {unet_name}")
dev = None if clip_device == "default" else clip_device
if use_clip2 and clip_name2 and clip_name2 != "None":
print(f"[Rayko] Using DualCLIPLoader mode")
print(f"[Rayko] CLIP1: {clip_name}")
print(f"[Rayko] CLIP2: {clip_name2}")
print(f"[Rayko] CLIP type: {clip_type}")
clip = DualCLIPLoader().load_clip(
clip_name1=clip_name,
clip_name2=clip_name2,
type=clip_type,
device=dev
)[0]
else:
print(f"[Rayko] Using standard CLIPLoader mode")
print(f"[Rayko] CLIP: {clip_name}")
print(f"[Rayko] CLIP type: {clip_type}")
clip = CLIPLoader().load_clip(
clip_name=clip_name,
type=clip_type,
device=dev
)[0]
print(f"[Rayko] CLIP loaded successfully")
if vae_name == "pixel_space":
print(f"[Rayko] Using pixel_space VAE (fake VAE for direct pixel manipulation)")
sd = {}
sd["pixel_space_vae"] = torch.tensor(1.0)
vae = comfy.sd.VAE(sd=sd, metadata=None)
vae.throw_exception_if_invalid()
else:
vae = VAELoader().load_vae(vae_name=vae_name)[0]
print(f"[Rayko] VAE: {vae_name}")
try:
loras = json.loads(lora_data) if lora_data else []
if not isinstance(loras, list):
loras = []
print(f"[Rayko] LoRA count: {len(loras)}")
except Exception as e:
loras = []
print(f"[Rayko] Parse error: {e}")
lora_loader = LoraLoader()
for i, lora in enumerate(loras):
if not isinstance(lora, dict):
continue
name = lora.get("name", "")
strength_model = float(lora.get("strength_model", 1.0))
strength_clip = float(lora.get("strength_clip", strength_model))
enabled = lora.get("enabled", True)
print(f"[Rayko] LoRA[{i}]: {name} | strength={strength_model} | enabled={enabled}")
if name and name != "None" and enabled:
lora_relative_path = name.replace("\\", "/")
lora_full_path = folder_paths.get_full_path("loras", lora_relative_path)
if lora_full_path:
try:
print(f"[Rayko] Applying LoRA: {lora_relative_path} (strength={strength_model})")
model, clip = lora_loader.load_lora(
model, clip,
lora_relative_path,
strength_model,
strength_clip
)
print(f"[Rayko] ✓ LoRA applied successfully")
except Exception as e:
print(f"[Rayko] ✗ Error: {e}")
else:
print(f"[Rayko] ✗ LoRA file not found: {lora_relative_path}")
print(f"[Rayko] === load_models completed successfully ===\n")
return (model, clip, vae)
NODE_CLASS_MAPPINGS = {"RaykoModelsLoader": RaykoModelsLoader}
NODE_DISPLAY_NAME_MAPPINGS = {"RaykoModelsLoader": "🦊 RS Models Loader"}
@PromptServer.instance.routes.get("/rayko/get_loras")
async def get_loras(request):
loras = folder_paths.get_filename_list("loras")
return aiohttp.web.json_response(sorted(loras, key=lambda x: x.lower()))
@PromptServer.instance.routes.post("/rayko_models/save_preset")
async def rayko_models_save_preset(request):
try:
data = await request.json()
name = data.get("name", "").strip()
if not name:
return aiohttp.web.Response(status=400, text="Name required")
name = "".join(c for c in name if c.isalnum() or c in " _-").strip()
if not name:
return aiohttp.web.Response(status=400, text="Invalid name")
filepath = os.path.join(PRESETS_DIR, f"{name}.json")
preset_data = {
"unet_name": data.get("unet_name", ""),
"weight_dtype": data.get("weight_dtype", "default"),
"use_clip2": data.get("use_clip2", False),
"clip_name": data.get("clip_name", ""),
"clip_name2": data.get("clip_name2", ""),
"clip_type": data.get("clip_type", "stable_diffusion"),
"clip_device": data.get("clip_device", "default"),
"vae_name": data.get("vae_name", "")
}
with open(filepath, 'w', encoding='utf-8') as f:
json.dump(preset_data, f, indent=2)
return aiohttp.web.Response(status=200, text="OK")
except Exception as e:
return aiohttp.web.Response(status=500, text=str(e))
@PromptServer.instance.routes.post("/rayko_models/list_presets")
async def rayko_models_list_presets(request):
try:
presets = []
if os.path.exists(PRESETS_DIR):
presets = [f[:-5] for f in os.listdir(PRESETS_DIR) if f.endswith('.json')]
return aiohttp.web.json_response(sorted(presets, key=lambda x: x.lower()))
except Exception as e:
return aiohttp.web.Response(status=500, text=str(e))
@PromptServer.instance.routes.post("/rayko_models/load_preset")
async def rayko_models_load_preset(request):
try:
data = await request.json()
name = data.get("name")
filepath = os.path.join(PRESETS_DIR, f"{name}.json")
if os.path.exists(filepath):
with open(filepath, 'r', encoding='utf-8') as f:
result = json.load(f)
return aiohttp.web.json_response(result)
return aiohttp.web.Response(status=404, text="Preset not found")
except Exception as e:
return aiohttp.web.Response(status=500, text=str(e))
@PromptServer.instance.routes.post("/rayko_models/delete_preset")
async def rayko_models_delete_preset(request):
try:
data = await request.json()
name = data.get("name")
if not name:
return aiohttp.web.Response(status=400, text="Name required")
filepath = os.path.join(PRESETS_DIR, f"{name}.json")
if os.path.exists(filepath):
os.remove(filepath)
return aiohttp.web.Response(status=200, text="OK")
return aiohttp.web.Response(status=404, text="Preset not found")
except Exception as e:
return aiohttp.web.Response(status=500, text=str(e))