Files
kijai-ComfyUI-WanVideoWrapper/nodes.py
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2025-02-26 02:42:03 +02:00

1097 lines
46 KiB
Python

import os
import torch
import gc
from .utils import log, print_memory
import numpy as np
import math
from tqdm import tqdm
from .wanvideo.modules.clip import CLIPModel
from .wanvideo.modules.model import WanModel, rope_params
from .wanvideo.modules.t5 import T5EncoderModel
from .wanvideo.utils.fm_solvers import (FlowDPMSolverMultistepScheduler,
get_sampling_sigmas, retrieve_timesteps)
from .wanvideo.utils.fm_solvers_unipc import FlowUniPCMultistepScheduler
from accelerate import init_empty_weights
from accelerate.utils import set_module_tensor_to_device
import folder_paths
import comfy.model_management as mm
from comfy.utils import load_torch_file, save_torch_file, ProgressBar
import comfy.model_base
import comfy.latent_formats
script_directory = os.path.dirname(os.path.abspath(__file__))
def add_noise_to_reference_video(image, ratio=None):
if ratio is None:
sigma = torch.normal(mean=-3.0, std=0.5, size=(image.shape[0],)).to(image.device)
sigma = torch.exp(sigma).to(image.dtype)
else:
sigma = torch.ones((image.shape[0],)).to(image.device, image.dtype) * ratio
image_noise = torch.randn_like(image) * sigma[:, None, None, None, None]
image_noise = torch.where(image==-1, torch.zeros_like(image), image_noise)
image = image + image_noise
return image
class WanVideoBlockSwap:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"blocks_to_swap": ("INT", {"default": 20, "min": 0, "max": 40, "step": 1, "tooltip": "Number of double blocks to swap"}),
},
}
RETURN_TYPES = ("BLOCKSWAPARGS",)
RETURN_NAMES = ("block_swap_args",)
FUNCTION = "setargs"
CATEGORY = "WanVideoWrapper"
DESCRIPTION = "Settings for block swapping, reduces VRAM use by swapping blocks to CPU memory"
def setargs(self, **kwargs):
return (kwargs, )
# class WanVideoEnhanceAVideo:
# @classmethod
# def INPUT_TYPES(s):
# return {
# "required": {
# "weight": ("FLOAT", {"default": 2.0, "min": 0, "max": 100, "step": 0.01, "tooltip": "The feta Weight of the Enhance-A-Video"}),
# "blocks": ("BOOLEAN", {"default": True, "tooltip": "Enable Enhance-A-Video for selected blocks"}),
# "start_percent": ("FLOAT", {"default": 0.0, "min": 0.0, "max": 1.0, "step": 0.01, "tooltip": "Start percentage of the steps to apply Enhance-A-Video"}),
# "end_percent": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 1.0, "step": 0.01, "tooltip": "End percentage of the steps to apply Enhance-A-Video"}),
# },
# }
# RETURN_TYPES = ("FETAARGS",)
# RETURN_NAMES = ("feta_args",)
# FUNCTION = "setargs"
# CATEGORY = "WanVideoWrapper"
# DESCRIPTION = "https://github.com/NUS-HPC-AI-Lab/Enhance-A-Video"
# def setargs(self, **kwargs):
# return (kwargs, )
# class WanVideoTeaCache:
# @classmethod
# def INPUT_TYPES(s):
# return {
# "required": {
# "rel_l1_thresh": ("FLOAT", {"default": 0.15, "min": 0.0, "max": 1.0, "step": 0.01,
# "tooltip": "Higher values will make TeaCache more aggressive, faster, but may cause artifacts"}),
# },
# }
# RETURN_TYPES = ("TEACACHEARGS",)
# RETURN_NAMES = ("teacache_args",)
# FUNCTION = "process"
# CATEGORY = "WanVideoWrapper"
# DESCRIPTION = "TeaCache settings for WanVideo to speed up inference"
# def process(self, rel_l1_thresh):
# teacache_args = {
# "rel_l1_thresh": rel_l1_thresh,
# }
# return (teacache_args,)
class WanVideoModel(comfy.model_base.BaseModel):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.pipeline = {}
def __getitem__(self, k):
return self.pipeline[k]
def __setitem__(self, k, v):
self.pipeline[k] = v
from comfy.latent_formats import LatentFormat
class WanVideoModelConfig:
def __init__(self, dtype):
self.unet_config = {}
self.unet_extra_config = {}
self.latent_format = comfy.latent_formats.HunyuanVideo #todo better values
self.latent_format.latent_channels = 16
self.manual_cast_dtype = dtype
self.sampling_settings = {"multiplier": 1.0}
# Don't know what this is. Value taken from ComfyUI Mochi model.
self.memory_usage_factor = 2.0
# denoiser is handled by extension
self.unet_config["disable_unet_model_creation"] = True
#region Model loading
class WanVideoModelLoader:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"model": (folder_paths.get_filename_list("diffusion_models"), {"tooltip": "These models are loaded from the 'ComfyUI/models/diffusion_models' -folder",}),
"base_precision": (["fp32", "bf16", "fp16"], {"default": "bf16"}),
"quantization": (['disabled', 'fp8_e4m3fn', 'fp8_e4m3fn_fast', 'fp8_e5m2', 'fp8_scaled', 'torchao_fp8dq', "torchao_fp8dqrow", "torchao_int8dq", "torchao_fp6", "torchao_int4", "torchao_int8"], {"default": 'disabled', "tooltip": "optional quantization method"}),
"load_device": (["main_device", "offload_device"], {"default": "main_device"}),
},
"optional": {
"attention_mode": ([
"sdpa",
"flash_attn_2",
"flash_attn_3",
"sageattn",
], {"default": "sdpa"}),
"compile_args": ("WANCOMPILEARGS", ),
"block_swap_args": ("BLOCKSWAPARGS", ),
}
}
RETURN_TYPES = ("WANVIDEOMODEL",)
RETURN_NAMES = ("model", )
FUNCTION = "loadmodel"
CATEGORY = "WanVideoWrapper"
def loadmodel(self, model, base_precision, load_device, quantization,
compile_args=None, attention_mode="sdpa", block_swap_args=None):
transformer = None
mm.unload_all_models()
mm.soft_empty_cache()
manual_offloading = True
if "sage" in attention_mode:
try:
from sageattention import sageattn
except Exception as e:
raise ValueError(f"Can't import SageAttention: {str(e)}")
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
manual_offloading = True
transformer_load_device = device if load_device == "main_device" else offload_device
base_dtype = {"fp8_e4m3fn": torch.float8_e4m3fn, "fp8_e4m3fn_fast": torch.float8_e4m3fn, "bf16": torch.bfloat16, "fp16": torch.float16, "fp32": torch.float32}[base_precision]
model_path = folder_paths.get_full_path_or_raise("diffusion_models", model)
sd = load_torch_file(model_path, device=transformer_load_device, safe_load=True)
dim = sd["patch_embedding.weight"].shape[0]
in_channels = sd["patch_embedding.weight"].shape[1]
print("in_channels: ", in_channels)
ffn_dim = sd["blocks.0.ffn.0.bias"].shape[0]
model_type = "i2v" if in_channels == 36 else "t2v"
num_heads = 40 if dim == 5120 else 12
num_layers = 40 if dim == 5120 else 30
log.info(f"Model type: {model_type}, num_heads: {num_heads}, num_layers: {num_layers}")
TRANSFORMER_CONFIG= {
"dim": dim,
"ffn_dim": ffn_dim,
"eps": 1e-06,
"freq_dim": 256,
"in_dim": in_channels,
"model_type": model_type,
"out_dim": 16,
"text_len": 512,
"num_heads": num_heads,
"num_layers": num_layers,
"attention_mode": attention_mode,
"main_device": device,
"offload_device": offload_device,
}
with init_empty_weights():
transformer = WanModel(**TRANSFORMER_CONFIG)
transformer.eval()
comfy_model = WanVideoModel(
WanVideoModelConfig(base_dtype),
model_type=comfy.model_base.ModelType.FLOW,
device=device,
)
if not "torchao" in quantization:
log.info("Using accelerate to load and assign model weights to device...")
if quantization == "fp8_e4m3fn" or quantization == "fp8_e4m3fn_fast" or quantization == "fp8_scaled":
dtype = torch.float8_e4m3fn
elif quantization == "fp8_e5m2":
dtype = torch.float8_e5m2
else:
dtype = base_dtype
params_to_keep = {"norm", "head", "bias", "time_in", "vector_in", "patch_embedding", "time_", "img_emb", "modulation"}
for name, param in transformer.named_parameters():
#print("Assigning Parameter name: ", name)
dtype_to_use = base_dtype if any(keyword in name for keyword in params_to_keep) else dtype
set_module_tensor_to_device(transformer, name, device=transformer_load_device, dtype=dtype_to_use, value=sd[name])
comfy_model.diffusion_model = transformer
comfy_model.load_device = transformer_load_device
patcher = comfy.model_patcher.ModelPatcher(comfy_model, device, offload_device)
del sd
gc.collect()
mm.soft_empty_cache()
if load_device == "offload_device":
patcher.model.diffusion_model.to(offload_device)
if quantization == "fp8_e4m3fn_fast":
from .fp8_optimization import convert_fp8_linear
#params_to_keep.update({"ffn"})
print(params_to_keep)
convert_fp8_linear(patcher.model.diffusion_model, base_dtype, params_to_keep=params_to_keep)
#compile
if compile_args is not None:
torch._dynamo.config.cache_size_limit = compile_args["dynamo_cache_size_limit"]
if compile_args["compile_transformer_blocks"]:
for i, block in enumerate(patcher.model.diffusion_model.blocks):
patcher.model.diffusion_model.blocks[i] = torch.compile(block, fullgraph=compile_args["fullgraph"], dynamic=compile_args["dynamic"], backend=compile_args["backend"], mode=compile_args["mode"])
elif "torchao" in quantization:
try:
from torchao.quantization import (
quantize_,
fpx_weight_only,
float8_dynamic_activation_float8_weight,
int8_dynamic_activation_int8_weight,
int8_weight_only,
int4_weight_only
)
except:
raise ImportError("torchao is not installed")
# def filter_fn(module: nn.Module, fqn: str) -> bool:
# target_submodules = {'attn1', 'ff'} # avoid norm layers, 1.5 at least won't work with quantized norm1 #todo: test other models
# if any(sub in fqn for sub in target_submodules):
# return isinstance(module, nn.Linear)
# return False
if "fp6" in quantization:
quant_func = fpx_weight_only(3, 2)
elif "int4" in quantization:
quant_func = int4_weight_only()
elif "int8" in quantization:
quant_func = int8_weight_only()
elif "fp8dq" in quantization:
quant_func = float8_dynamic_activation_float8_weight()
elif 'fp8dqrow' in quantization:
from torchao.quantization.quant_api import PerRow
quant_func = float8_dynamic_activation_float8_weight(granularity=PerRow())
elif 'int8dq' in quantization:
quant_func = int8_dynamic_activation_int8_weight()
log.info(f"Quantizing model with {quant_func}")
comfy_model.diffusion_model = transformer
patcher = comfy.model_patcher.ModelPatcher(comfy_model, device, offload_device)
for i, block in enumerate(patcher.model.diffusion_model.blocks):
log.info(f"Quantizing block {i}")
for name, _ in block.named_parameters(prefix=f"blocks.{i}"):
#print(f"Parameter name: {name}")
set_module_tensor_to_device(patcher.model.diffusion_model, name, device=transformer_load_device, dtype=base_dtype, value=sd[name])
if compile_args is not None:
patcher.model.diffusion_model.blocks[i] = torch.compile(block, fullgraph=compile_args["fullgraph"], dynamic=compile_args["dynamic"], backend=compile_args["backend"], mode=compile_args["mode"])
quantize_(block, quant_func)
print(block)
#block.to(offload_device)
for name, param in patcher.model.diffusion_model.named_parameters():
if "blocks" not in name:
set_module_tensor_to_device(patcher.model.diffusion_model, name, device=transformer_load_device, dtype=base_dtype, value=sd[name])
manual_offloading = False # to disable manual .to(device) calls
log.info(f"Quantized transformer blocks to {quantization}")
for name, param in patcher.model.diffusion_model.named_parameters():
print(name, param.dtype)
#param.data = param.data.to(self.vae_dtype).to(device)
del sd
mm.soft_empty_cache()
patcher.model["dtype"] = base_dtype
patcher.model["base_path"] = model_path
patcher.model["model_name"] = model
patcher.model["manual_offloading"] = manual_offloading
patcher.model["quantization"] = "disabled"
patcher.model["block_swap_args"] = block_swap_args
for model in mm.current_loaded_models:
if model._model() == patcher:
mm.current_loaded_models.remove(model)
return (patcher,)
#region load VAE
class WanVideoVAELoader:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"model_name": (folder_paths.get_filename_list("vae"), {"tooltip": "These models are loaded from 'ComfyUI/models/vae'"}),
},
"optional": {
"precision": (["fp16", "fp32", "bf16"],
{"default": "bf16"}
),
}
}
RETURN_TYPES = ("WANVAE",)
RETURN_NAMES = ("vae", )
FUNCTION = "loadmodel"
CATEGORY = "WanVideoWrapper"
DESCRIPTION = "Loads Hunyuan VAE model from 'ComfyUI/models/vae'"
def loadmodel(self, model_name, precision, compile_args=None):
from .wanvideo.wan_video_vae import WanVideoVAE
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
dtype = {"bf16": torch.bfloat16, "fp16": torch.float16, "fp32": torch.float32}[precision]
#with open(os.path.join(script_directory, 'configs', 'hy_vae_config.json')) as f:
# vae_config = json.load(f)
model_path = folder_paths.get_full_path("vae", model_name)
vae_sd = load_torch_file(model_path, safe_load=True)
has_model_prefix = any(k.startswith("model.") for k in vae_sd.keys())
if not has_model_prefix:
vae_sd = {f"model.{k}": v for k, v in vae_sd.items()}
vae = WanVideoVAE(dtype=dtype)
vae.load_state_dict(vae_sd)
vae.eval()
vae.to(device = device, dtype = dtype)
return (vae,)
class WanVideoTorchCompileSettings:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"backend": (["inductor","cudagraphs"], {"default": "inductor"}),
"fullgraph": ("BOOLEAN", {"default": False, "tooltip": "Enable full graph mode"}),
"mode": (["default", "max-autotune", "max-autotune-no-cudagraphs", "reduce-overhead"], {"default": "default"}),
"dynamic": ("BOOLEAN", {"default": False, "tooltip": "Enable dynamic mode"}),
"dynamo_cache_size_limit": ("INT", {"default": 64, "min": 0, "max": 1024, "step": 1, "tooltip": "torch._dynamo.config.cache_size_limit"}),
"compile_transformer_blocks": ("BOOLEAN", {"default": True, "tooltip": "Compile single blocks"}),
},
}
RETURN_TYPES = ("WANCOMPILEARGS",)
RETURN_NAMES = ("torch_compile_args",)
FUNCTION = "loadmodel"
CATEGORY = "WanVideoWrapper"
DESCRIPTION = "torch.compile settings, when connected to the model loader, torch.compile of the selected layers is attempted. Requires Triton and torch 2.5.0 is recommended"
def loadmodel(self, backend, fullgraph, mode, dynamic, dynamo_cache_size_limit, compile_transformer_blocks):
compile_args = {
"backend": backend,
"fullgraph": fullgraph,
"mode": mode,
"dynamic": dynamic,
"dynamo_cache_size_limit": dynamo_cache_size_limit,
"compile_transformer_blocks": compile_transformer_blocks,
}
return (compile_args, )
#region TextEncode
class LoadWanVideoT5TextEncoder:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"model_name": (folder_paths.get_filename_list("text_encoders"), {"tooltip": "These models are loaded from 'ComfyUI/models/vae'"}),
"precision": (["fp16", "fp32", "bf16"],
{"default": "bf16"}
),
},
"optional": {
"load_device": (["main_device", "offload_device"], {"default": "offload_device"}),
}
}
RETURN_TYPES = ("WANTEXTENCODER",)
RETURN_NAMES = ("wan_t5_model", )
FUNCTION = "loadmodel"
CATEGORY = "WanVideoWrapper"
DESCRIPTION = "Loads Hunyuan text_encoder model from 'ComfyUI/models/LLM'"
def loadmodel(self, model_name, precision, load_device="offload_device"):
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
text_encoder_load_device = device if load_device == "main_device" else offload_device
tokenizer_path = os.path.join(script_directory, "configs", "T5_tokenizer")
dtype = {"bf16": torch.bfloat16, "fp16": torch.float16, "fp32": torch.float32}[precision]
model_path = folder_paths.get_full_path("text_encoders", model_name)
sd = load_torch_file(model_path, safe_load=True)
T5_text_encoder = T5EncoderModel(
text_len=512,
dtype=dtype,
device=text_encoder_load_device,
state_dict=sd,
tokenizer_path=tokenizer_path,
)
return (T5_text_encoder,)
class LoadWanVideoClipTextEncoder:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"model_name": (folder_paths.get_filename_list("text_encoders"), {"tooltip": "These models are loaded from 'ComfyUI/models/vae'"}),
"precision": (["fp16", "fp32", "bf16"],
{"default": "fp16"}
),
},
"optional": {
"load_device": (["main_device", "offload_device"], {"default": "offload_device"}),
}
}
RETURN_TYPES = ("WANCLIP",)
RETURN_NAMES = ("wan_clip_model", )
FUNCTION = "loadmodel"
CATEGORY = "WanVideoWrapper"
DESCRIPTION = "Loads Hunyuan text_encoder model from 'ComfyUI/models/LLM'"
def loadmodel(self, model_name, precision, load_device="offload_device"):
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
text_encoder_load_device = device if load_device == "main_device" else offload_device
tokenizer_path = os.path.join(script_directory, "configs", "clip")
dtype = {"bf16": torch.bfloat16, "fp16": torch.float16, "fp32": torch.float32}[precision]
model_path = folder_paths.get_full_path("text_encoders", model_name)
sd = load_torch_file(model_path, safe_load=True)
clip_model = CLIPModel(dtype=dtype, device=text_encoder_load_device, state_dict=sd, tokenizer_path=tokenizer_path)
return (clip_model,)
class WanVideoTextEncode:
@classmethod
def INPUT_TYPES(s):
return {"required": {
"t5": ("WANTEXTENCODER",),
"positive_prompt": ("STRING", {"default": "", "multiline": True} ),
"negative_prompt": ("STRING", {"default": "", "multiline": True} ),
},
"optional": {
"force_offload": ("BOOLEAN", {"default": True}),
}
}
RETURN_TYPES = ("WANVIDEOTEXTEMBEDS", )
RETURN_NAMES = ("text_embeds",)
FUNCTION = "process"
CATEGORY = "WanVideoWrapper"
def process(self, t5, positive_prompt, negative_prompt,force_offload=True):
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
t5.model.to(device)
context = t5([positive_prompt], device)
context_null = t5([negative_prompt], device)
context = [t.to(device) for t in context]
context_null = [t.to(device) for t in context_null]
if force_offload:
t5.model.to(offload_device)
prompt_embeds_dict = {
"prompt_embeds": context,
"negative_prompt_embeds": context_null,
}
return (prompt_embeds_dict,)
#region clip image encode
class WanVideoImageClipEncode:
@classmethod
def INPUT_TYPES(s):
return {"required": {
"clip": ("WANCLIP",),
"image": ("IMAGE", {"tooltip": "Image to encode"}),
"vae": ("WANVAE",),
"generation_width": ("INT", {"default": 832, "min": 64, "max": 2048, "step": 8, "tooltip": "Width of the image to encode"}),
"generation_height": ("INT", {"default": 480, "min": 64, "max": 29048, "step": 8, "tooltip": "Height of the image to encode"}),
"num_frames": ("INT", {"default": 81, "min": 5, "max": 10000, "step": 4, "tooltip": "Number of frames to encode"}),
},
"optional": {
"force_offload": ("BOOLEAN", {"default": True}),
}
}
RETURN_TYPES = ("WANVIDIMAGE_EMBEDS", )
RETURN_NAMES = ("image_embeds",)
FUNCTION = "process"
CATEGORY = "WanVideoWrapper"
def process(self, clip, vae, image, num_frames, generation_width, generation_height, force_offload=True):
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
self.image_mean = [0.48145466, 0.4578275, 0.40821073]
self.image_std = [0.26862954, 0.26130258, 0.27577711]
patch_size = (1, 2, 2)
vae_stride = (4, 8, 8)
sp_size = 1 #no parallelism
H, W = image.shape[1], image.shape[2]
max_area = generation_width * generation_height
from comfy.clip_vision import clip_preprocess
pixel_values = clip_preprocess(image.to(device), size=224, mean=self.image_mean, std=self.image_std, crop=True).float()
clip.model.to(device)
clip_context = clip.visual(pixel_values)
if force_offload:
clip.model.to(offload_device)
aspect_ratio = H / W
lat_h = round(
np.sqrt(max_area * aspect_ratio) // vae_stride[1] //
patch_size[1] * patch_size[1])
lat_w = round(
np.sqrt(max_area / aspect_ratio) // vae_stride[2] //
patch_size[2] * patch_size[2])
h = lat_h * vae_stride[1]
w = lat_w * vae_stride[2]
msk = torch.ones(1, num_frames, lat_h, lat_w, device=device)
msk[:, 1:] = 0
msk = torch.concat([
torch.repeat_interleave(msk[:, 0:1], repeats=4, dim=1), msk[:, 1:]
],
dim=1)
msk = msk.view(1, msk.shape[1] // 4, 4, lat_h, lat_w)
msk = msk.transpose(1, 2)[0]
max_seq_len = ((num_frames - 1) // vae_stride[0] + 1) * lat_h * lat_w // (
patch_size[1] * patch_size[2])
max_seq_len = int(math.ceil(max_seq_len / sp_size)) * sp_size
vae.to(device)
image = image.to(device = device, dtype = vae.dtype) * 2 - 1
y = vae.encode([
torch.concat([
torch.nn.functional.interpolate(
image.permute(0, 3, 1, 2), size=(h, w), mode='bicubic').transpose(
0, 1),
torch.zeros(3, num_frames-1, h, w, device=device)
],
dim=1).to(image)
],device)[0]
y = torch.concat([msk, y])
vae.to(offload_device)
image_embeds = {
"image_embeds": y,
"clip_context": clip_context,
"max_seq_len": max_seq_len,
"num_frames": num_frames,
"lat_h": lat_h,
"lat_w": lat_w,
}
return (image_embeds,)
class WanVideoEmptyEmbeds:
@classmethod
def INPUT_TYPES(s):
return {"required": {
"width": ("INT", {"default": 832, "min": 64, "max": 2048, "step": 8, "tooltip": "Width of the image to encode"}),
"height": ("INT", {"default": 480, "min": 64, "max": 29048, "step": 8, "tooltip": "Height of the image to encode"}),
"num_frames": ("INT", {"default": 81, "min": 5, "max": 10000, "step": 4, "tooltip": "Number of frames to encode"}),
},
}
RETURN_TYPES = ("WANVIDIMAGE_EMBEDS", )
RETURN_NAMES = ("image_embeds",)
FUNCTION = "process"
CATEGORY = "WanVideoWrapper"
def process(self, num_frames, width, height):
patch_size = (1, 2, 2)
vae_stride = (4, 8, 8)
target_shape = (16, (num_frames - 1) // vae_stride[0] + 1,
height // vae_stride[1],
width // vae_stride[2])
seq_len = math.ceil((target_shape[2] * target_shape[3]) /
(patch_size[1] * patch_size[2]) *
target_shape[1])
embeds = {
"max_seq_len": seq_len,
"target_shape": target_shape,
"num_frames": num_frames
}
return (embeds,)
#region Sampler
class WanVideoSampler:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"model": ("WANVIDEOMODEL",),
"text_embeds": ("WANVIDEOTEXTEMBEDS", ),
"image_embeds": ("WANVIDIMAGE_EMBEDS", ),
"steps": ("INT", {"default": 30, "min": 1}),
"cfg": ("FLOAT", {"default": 6.0, "min": 0.0, "max": 30.0, "step": 0.01}),
"shift": ("FLOAT", {"default": 5.0, "min": 0.0, "max": 1000.0, "step": 0.01}),
"seed": ("INT", {"default": 0, "min": 0, "max": 0xffffffffffffffff}),
"force_offload": ("BOOLEAN", {"default": True}),
"scheduler": (["unipc", "dpm++", "dpm++_sde"],
{
"default": 'dpm++'
}),
"riflex_freq_index": ("INT", {"default": 0, "min": 0, "max": 1000, "step": 1, "tooltip": "Frequency index for RIFLEX, disabled when 0, default 4. Allows for new frames to be generated after without looping"}),
},
"optional": {
"samples": ("LATENT", {"tooltip": "init Latents to use for video2video process"} ),
#"image_cond_latents": ("LATENT", {"tooltip": "init Latents to use for image2video process"} ),
"denoise_strength": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 1.0, "step": 0.01}),
#"riflex_freq_index": ("INT", {"default": 0, "min": 0, "max": 1000, "step": 1, "tooltip": "Frequency index for RIFLEX, disabled when 0, default 4. Allows for new frames to be generated after 129 without looping"}),
}
}
RETURN_TYPES = ("LATENT",)
RETURN_NAMES = ("samples",)
FUNCTION = "process"
CATEGORY = "WanVideoWrapper"
def process(self, model, text_embeds, image_embeds, shift, steps, cfg, seed, scheduler, riflex_freq_index, force_offload=True, samples=None, denoise_strength=1.0):
patcher = model
model = model.model
transformer = model.diffusion_model
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
if model["block_swap_args"] is not None:
for name, param in transformer.named_parameters():
if "block" not in name:
param.data = param.data.to(device)
transformer.block_swap(
model["block_swap_args"]["blocks_to_swap"] - 1 ,
)
else:
if model["manual_offloading"]:
transformer.to(device)
# # Initialize TeaCache if enabled
# if teacache_args is not None:
# # Check if dimensions have changed since last run
# if (not hasattr(transformer, 'last_dimensions') or
# transformer.last_dimensions != (height, width, num_frames) or
# not hasattr(transformer, 'last_frame_count') or
# transformer.last_frame_count != num_frames):
# # Reset TeaCache state on dimension change
# transformer.cnt = 0
# transformer.accumulated_rel_l1_distance = 0
# transformer.previous_modulated_input = None
# transformer.previous_residual = None
# transformer.last_dimensions = (height, width, num_frames)
# transformer.last_frame_count = num_frames
# transformer.enable_teacache = True
# transformer.num_steps = steps
# transformer.rel_l1_thresh = teacache_args["rel_l1_thresh"]
# else:
# transformer.enable_teacache = False
mm.soft_empty_cache()
gc.collect()
try:
torch.cuda.reset_peak_memory_stats(device)
except:
pass
#for name, param in transformer.named_parameters():
# print(name, param.data.device)
steps = int(steps/denoise_strength)
if scheduler == 'unipc':
sample_scheduler = FlowUniPCMultistepScheduler(
num_train_timesteps=1000,
shift=shift,
use_dynamic_shifting=False)
sample_scheduler.set_timesteps(
steps, device=device, shift=shift)
timesteps = sample_scheduler.timesteps
elif 'dpm++' in scheduler:
if scheduler == 'dpm++_sde':
algorithm_type = "sde-dpmsolver++"
else:
algorithm_type = "dpmsolver++"
sample_scheduler = FlowDPMSolverMultistepScheduler(
num_train_timesteps=1000,
shift=shift,
use_dynamic_shifting=False,
algorithm_type= algorithm_type)
sampling_sigmas = get_sampling_sigmas(steps, shift)
timesteps, _ = retrieve_timesteps(
sample_scheduler,
device=device,
sigmas=sampling_sigmas)
else:
raise NotImplementedError("Unsupported solver.")
if denoise_strength < 1.0:
steps = int(steps * denoise_strength)
timesteps = timesteps[-(steps + 1):]
seed_g = torch.Generator(device=torch.device("cpu"))
seed_g.manual_seed(seed)
if transformer.model_type == "i2v":
noise = torch.randn(
16,
(image_embeds["num_frames"] - 1) // 4 + 1,
image_embeds["lat_h"],
image_embeds["lat_w"],
dtype=torch.float32,
generator=seed_g,
device=torch.device("cpu"))
seq_len = image_embeds["max_seq_len"]
else: #t2v
target_shape = image_embeds["target_shape"]
seq_len = image_embeds["max_seq_len"]
noise = torch.randn(
target_shape[0],
target_shape[1],
target_shape[2],
target_shape[3],
dtype=torch.float32,
device=torch.device("cpu"),
generator=seed_g)
if samples is not None:
latent_timestep = timesteps[:1].to(noise)
noise = noise * latent_timestep / 1000 + (1 - latent_timestep / 1000) * samples["samples"].squeeze(0).to(noise)
latent = noise.to(device)
d = transformer.dim // transformer.num_heads
freqs = torch.cat([
rope_params(1024, d - 4 * (d // 6), L_test=latent.shape[2], k=riflex_freq_index),
rope_params(1024, 2 * (d // 6), L_test=latent.shape[2], k=riflex_freq_index),
rope_params(1024, 2 * (d // 6), L_test=latent.shape[2], k=riflex_freq_index)
],
dim=1)
if not isinstance(cfg, list):
cfg = [cfg] * (steps +1)
print(cfg)
base_args = {
'clip_fea': image_embeds.get('clip_context', None),
'seq_len': seq_len,
'device': device,
'freqs': freqs,
}
if transformer.model_type == "i2v":
base_args.update({
'y': [image_embeds["image_embeds"]],
})
arg_c = base_args.copy()
arg_c.update({'context': [text_embeds["prompt_embeds"][0]]})
arg_null = base_args.copy()
arg_null.update({'context': text_embeds["negative_prompt_embeds"]})
pbar = ProgressBar(steps)
from latent_preview import prepare_callback
callback = prepare_callback(patcher, steps)
with torch.autocast(device_type=mm.get_autocast_device(device), dtype=model["dtype"], enabled=True):
for i, t in enumerate(tqdm(timesteps)):
latent_model_input = [latent.to(device)]
timestep = [t]
timestep = torch.stack(timestep).to(device)
noise_pred_cond = transformer(
latent_model_input, t=timestep, **arg_c)[0].to(offload_device)
if cfg[i] != 1.0:
noise_pred_uncond = transformer(
latent_model_input, t=timestep, **arg_null)[0].to(offload_device)
noise_pred = noise_pred_uncond + cfg[i] * (
noise_pred_cond - noise_pred_uncond)
else:
noise_pred = noise_pred_cond
latent = latent.to(offload_device)
temp_x0 = sample_scheduler.step(
noise_pred.unsqueeze(0),
t,
latent.unsqueeze(0),
return_dict=False,
generator=seed_g)[0]
latent = temp_x0.squeeze(0)
x0 = [latent.to(device)]
if callback is not None:
callback_latent = (latent_model_input[0].cpu() - noise_pred * t.cpu() / 1000).detach().permute(1,0,2,3)
callback(i, callback_latent, None, steps)
else:
pbar.update(1)
del latent_model_input, timestep
if force_offload:
if model["manual_offloading"]:
transformer.to(offload_device)
mm.soft_empty_cache()
gc.collect()
print_memory(device)
try:
torch.cuda.reset_peak_memory_stats(device)
except:
pass
return ({
"samples": x0[0].unsqueeze(0).cpu()
},)
#region VideoDecode
class WanVideoDecode:
@classmethod
def INPUT_TYPES(s):
return {"required": {
"vae": ("WANVAE",),
"samples": ("LATENT",),
"enable_vae_tiling": ("BOOLEAN", {"default": True, "tooltip": "Drastically reduces memory use but may introduce seams"}),
"tile_x": ("INT", {"default": 272, "min": 64, "max": 2048, "step": 1, "tooltip": "Tile size in pixels, smaller values use less VRAM, may introduce more seams"}),
"tile_y": ("INT", {"default": 272, "min": 64, "max": 2048, "step": 1, "tooltip": "Tile size in pixels, smaller values use less VRAM, may introduce more seams"}),
"tile_stride_x": ("INT", {"default": 144, "min": 32, "max": 2048, "step": 32, "tooltip": "Tile stride in pixels, smaller values use less VRAM, may introduce more seams"}),
"tile_stride_y": ("INT", {"default": 128, "min": 32, "max": 2048, "step": 32, "tooltip": "Tile stride in pixels, smaller values use less VRAM, may introduce more seams"}),
},
}
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("images",)
FUNCTION = "decode"
CATEGORY = "WanVideoWrapper"
def decode(self, vae, samples, enable_vae_tiling, tile_x, tile_y, tile_stride_x, tile_stride_y):
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
mm.soft_empty_cache()
latents = samples["samples"]
vae.to(device)
latents = latents.to(device = device, dtype = vae.dtype)
mm.soft_empty_cache()
image = vae.decode(latents, device=device, tiled=enable_vae_tiling, tile_size=(tile_x, tile_y), tile_stride=(tile_stride_x, tile_stride_y))[0]
print(image.shape)
print(image.min(), image.max())
vae.to(offload_device)
image = (image - image.min()) / (image.max() - image.min())
image = torch.clamp(image, 0.0, 1.0)
image = image.permute(1, 2, 3, 0).cpu().float()
return (image,)
#region VideoEncode
class WanVideoEncode:
@classmethod
def INPUT_TYPES(s):
return {"required": {
"vae": ("WANVAE",),
"image": ("IMAGE",),
"enable_vae_tiling": ("BOOLEAN", {"default": True, "tooltip": "Drastically reduces memory use but may introduce seams"}),
"tile_x": ("INT", {"default": 272, "min": 64, "max": 2048, "step": 1, "tooltip": "Tile size in pixels, smaller values use less VRAM, may introduce more seams"}),
"tile_y": ("INT", {"default": 272, "min": 64, "max": 2048, "step": 1, "tooltip": "Tile size in pixels, smaller values use less VRAM, may introduce more seams"}),
"tile_stride_x": ("INT", {"default": 144, "min": 32, "max": 2048, "step": 32, "tooltip": "Tile stride in pixels, smaller values use less VRAM, may introduce more seams"}),
"tile_stride_y": ("INT", {"default": 128, "min": 32, "max": 2048, "step": 32, "tooltip": "Tile stride in pixels, smaller values use less VRAM, may introduce more seams"}),
},
"optional": {
"noise_aug_strength": ("FLOAT", {"default": 0.0, "min": 0.0, "max": 10.0, "step": 0.001, "tooltip": "Strength of noise augmentation, helpful for leapfusion I2V where some noise can add motion and give sharper results"}),
"latent_strength": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 10.0, "step": 0.001, "tooltip": "Additional latent multiplier, helpful for leapfusion I2V where lower values allow for more motion"}),
}
}
RETURN_TYPES = ("LATENT",)
RETURN_NAMES = ("samples",)
FUNCTION = "encode"
CATEGORY = "WanVideoWrapper"
def encode(self, vae, image, enable_vae_tiling, tile_x, tile_y, tile_stride_x, tile_stride_y, noise_aug_strength=0.0, latent_strength=1.0):
device = mm.get_torch_device()
offload_device = mm.unet_offload_device()
generator = torch.Generator(device=torch.device("cpu"))#.manual_seed(seed)
vae.to(device)
image = (image.clone() * 2.0 - 1.0).to(vae.dtype).to(device).unsqueeze(0).permute(0, 4, 1, 2, 3) # B, C, T, H, W
if noise_aug_strength > 0.0:
image = add_noise_to_reference_video(image, ratio=noise_aug_strength)
latents = vae.encode(image, device=device, tiled=enable_vae_tiling, tile_size=(tile_x, tile_y), tile_stride=(tile_stride_x, tile_stride_y))#.latent_dist.sample(generator)
if latent_strength != 1.0:
latents *= latent_strength
#latents = latents * vae.config.scaling_factor
vae.to(offload_device)
print("encoded latents shape",latents.shape)
return ({"samples": latents},)
class WanVideoLatentPreview:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"samples": ("LATENT",),
"seed": ("INT", {"default": 0, "min": 0, "max": 0xffffffffffffffff}),
"min_val": ("FLOAT", {"default": -0.15, "min": -1.0, "max": 0.0, "step": 0.0001}),
"max_val": ("FLOAT", {"default": 0.15, "min": 0.0, "max": 1.0, "step": 0.0001}),
"r_bias": ("FLOAT", {"default": 0.0, "min": -1.0, "max": 1.0, "step": 0.0001}),
"g_bias": ("FLOAT", {"default": 0.0, "min": -1.0, "max": 1.0, "step": 0.0001}),
"b_bias": ("FLOAT", {"default": 0.0, "min": -1.0, "max": 1.0, "step": 0.0001}),
},
}
RETURN_TYPES = ("IMAGE", "STRING", )
RETURN_NAMES = ("images", "latent_rgb_factors",)
FUNCTION = "sample"
CATEGORY = "WanVideoWrapper"
def sample(self, samples, seed, min_val, max_val, r_bias, g_bias, b_bias):
mm.soft_empty_cache()
latents = samples["samples"].clone()
print("in sample", latents.shape)
#latent_rgb_factors =[[-0.02531045419704009, -0.00504800612542497, 0.13293717293982546], [-0.03421835830845858, 0.13996708548892614, -0.07081038680118075], [0.011091819063647063, -0.03372949685846012, -0.0698232210116172], [-0.06276524604742019, -0.09322986677909442, 0.01826383612148913], [0.021290659938126788, -0.07719530444034409, -0.08247812477766273], [0.04401102991215147, -0.0026401932105894754, -0.01410913586718443], [0.08979717602613707, 0.05361221258740831, 0.11501425309699129], [0.04695121980405198, -0.13053491609675175, 0.05025986885867986], [-0.09704684176098193, 0.03397687417738002, -0.1105886644677771], [0.14694697234804935, -0.12316902186157716, 0.04210404546699645], [0.14432470831243552, -0.002580008133591355, -0.08490676947390643], [0.051502750076553944, -0.10071695490292451, -0.01786223610178095], [-0.12503276881774464, 0.08877830923879379, 0.1076584501927316], [-0.020191205513213406, -0.1493425056303128, -0.14289740371758308], [-0.06470138952271293, -0.07410426095060325, 0.00980804676890873], [0.11747671720735695, 0.10916082743849789, -0.12235599365235904]]
latent_rgb_factors = [
[0.000159, -0.000223, 0.001299],
[0.000566, 0.000786, 0.001948],
[0.001531, -0.000337, 0.000863],
[0.001887, 0.002190, 0.002117],
[0.002032, 0.000782, -0.000512],
[0.001634, 0.001260, 0.001685],
[0.001360, -0.000292, 0.000189],
[0.001410, 0.000769, 0.001935],
[-0.000365, 0.000211, 0.000397],
[-0.000091, 0.001333, 0.001812],
[0.000201, 0.001866, 0.000546],
[0.001889, 0.000544, -0.000237],
[0.001779, 0.000022, 0.001764],
[0.001456, 0.000431, 0.001574],
[0.001791, 0.001738, -0.000121],
[-0.000034, -0.000405, 0.000708]
]
import random
random.seed(seed)
#latent_rgb_factors = [[random.uniform(min_val, max_val) for _ in range(3)] for _ in range(16)]
#latent_rgb_factors = [[0.1 for _ in range(3)] for _ in range(16)]
out_factors = latent_rgb_factors
print(latent_rgb_factors)
latent_rgb_factors_bias = [-0.0011, 0.0, -0.0002]
#latent_rgb_factors_bias = [r_bias, g_bias, b_bias]
latent_rgb_factors = torch.tensor(latent_rgb_factors, device=latents.device, dtype=latents.dtype).transpose(0, 1)
latent_rgb_factors_bias = torch.tensor(latent_rgb_factors_bias, device=latents.device, dtype=latents.dtype)
print(latent_rgb_factors)
print("latent_rgb_factors", latent_rgb_factors.shape)
latent_images = []
for t in range(latents.shape[2]):
latent = latents[:, :, t, :, :]
latent = latent[0].permute(1, 2, 0)
latent_image = torch.nn.functional.linear(
latent,
latent_rgb_factors,
bias=latent_rgb_factors_bias
)
latent_images.append(latent_image)
latent_images = torch.stack(latent_images, dim=0)
print("latent_images", latent_images.shape)
latent_images_min = latent_images.min()
latent_images_max = latent_images.max()
latent_images = (latent_images - latent_images_min) / (latent_images_max - latent_images_min)
return (latent_images.float().cpu(), out_factors)
NODE_CLASS_MAPPINGS = {
"WanVideoSampler": WanVideoSampler,
"WanVideoDecode": WanVideoDecode,
"WanVideoTextEncode": WanVideoTextEncode,
"WanVideoModelLoader": WanVideoModelLoader,
"WanVideoVAELoader": WanVideoVAELoader,
"LoadWanVideoT5TextEncoder": LoadWanVideoT5TextEncoder,
"WanVideoImageClipEncode": WanVideoImageClipEncode,
"LoadWanVideoClipTextEncoder": LoadWanVideoClipTextEncoder,
"WanVideoEncode": WanVideoEncode,
"WanVideoBlockSwap": WanVideoBlockSwap,
"WanVideoTorchCompileSettings": WanVideoTorchCompileSettings,
"WanVideoLatentPreview": WanVideoLatentPreview,
"WanVideoEmptyEmbeds": WanVideoEmptyEmbeds,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"WanVideoSampler": "WanVideo Sampler",
"WanVideoDecode": "WanVideo Decode",
"WanVideoTextEncode": "WanVideo TextEncode",
"WanVideoTextImageEncode": "WanVideo TextImageEncode (IP2V)",
"WanVideoModelLoader": "WanVideo Model Loader",
"WanVideoVAELoader": "WanVideo VAE Loader",
"LoadWanVideoT5TextEncoder": "Load WanVideo T5 TextEncoder",
"WanVideoImageClipEncode": "WanVideo ImageClip Encode",
"LoadWanVideoClipTextEncoder": "Load WanVideo Clip TextEncoder",
"WanVideoEncode": "WanVideo Encode",
"WanVideoBlockSwap": "WanVideo BlockSwap",
"WanVideoTorchCompileSettings": "WanVideo Torch Compile Settings",
"WanVideoLatentPreview": "WanVideo Latent Preview",
"WanVideoEmptyEmbeds": "WanVideo Empty Embeds",
}