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Kosinkadink-ComfyUI-Animate…/animatediff/sampling.py
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Python

from typing import Callable
import math
import torch
from torch import Tensor
from torch.nn.functional import group_norm
from einops import rearrange
import collections
import threading
import comfy.model_management
import comfy.model_patcher
import comfy.patcher_extension
import comfy.samplers
import comfy.sampler_helpers
import comfy.utils
from comfy.controlnet import ControlBase
from comfy.model_base import BaseModel
from comfy.model_patcher import ModelPatcher
from comfy.patcher_extension import WrapperExecutor, WrappersMP
import comfy.conds
import comfy.ops
if hasattr(comfy, 'multigpu'):
import comfy.multigpu
from .context import ContextFuseMethod, ContextSchedules, get_context_weights, get_context_windows
from .context_extras import ContextRefHandler, NaiveReuseHandler
from .sample_settings import SampleSettings, NoisedImageToInject
from .utils_model import vae_encode_raw_batched, vae_decode_raw_batched
from .utils_motion import composite_extend, prepare_mask_batch, extend_to_batch_size
from .model_injection import InjectionParams, ModelPatcherHelper, MotionModelGroup, get_mm_attachment
from .motion_module_ad import AnimateDiffFormat, AnimateDiffInfo, AnimateDiffVersion
from .adapter_hellomeme import HMRefConst, HMRefStates, get_hmref_attachment, create_hmref_apply_model_wrapper
from .logger import logger
##################################################################################
######################################################################
# Global variable to use to more conveniently hack variable access into samplers
class AnimateDiffGlobalState:
def __init__(self):
self.model_patcher: ModelPatcher = None
self.motion_models: MotionModelGroup = None
self.model_patcher_devices: dict[torch.device, ModelPatcher] = {}
self.motion_models_devices: dict[torch.device, MotionModelGroup] = {}
self.params: InjectionParams = None
self.sample_settings: SampleSettings = None
self.callback_output_dict: dict[str] = {}
self.function_injections: FunctionInjectionHolder = None
self.reset()
def initialize(self, model: BaseModel, model_options: dict[str]):
# this function is to be run in sampling func
if not self.initialized:
self.initialized = True
# initialize multigpu stuff
if "multigpu_clones" in model_options:
self.model_patcher_devices = model_options["multigpu_clones"].copy()
for device, patcher in self.model_patcher_devices.items():
mm_list = ModelPatcherHelper(patcher).get_motion_models()
if len(mm_list) > 0:
self.motion_models_devices[device] = MotionModelGroup(mm_list)
else:
self.model_patcher_devices[self.model_patcher.load_device] = self.model_patcher
if self.motion_models is not None:
self.motion_models_devices[self.model_patcher.load_device] = self.motion_models
# initialize timesteps
for device, motion_models in self.motion_models_devices.items():
base_model = self.model_patcher_devices[device].model
motion_models.initialize_timesteps(base_model)
if self.params.context_options is not None:
self.params.context_options.initialize_timesteps(model)
if self.sample_settings.custom_cfg is not None:
self.sample_settings.custom_cfg.initialize_timesteps(model)
def prepare_current_keyframes(self, x: Tensor, timestep: Tensor, transformer_options: dict[str, Tensor]):
for motion_models in self.motion_models_devices.values():
motion_models.prepare_current_keyframe(x=x, t=timestep, transformer_options=transformer_options)
if self.params.context_options is not None:
self.params.context_options.prepare_current(t=timestep, transformer_options=transformer_options)
if self.sample_settings.custom_cfg is not None:
self.sample_settings.custom_cfg.prepare_current_keyframe(t=timestep, transformer_options=transformer_options)
def perform_special_model_features(self, conds: list, x_in: Tensor, model_options: dict[str]):
# make sure multigpu clones of same model are not causing duplicate wraps
clone_uuids = set()
for device, motion_models in self.motion_models_devices.items():
model: BaseModel = self.model_patcher_devices[device].model
special_models = motion_models.get_special_models()
if len(special_models) > 0:
for special_model in special_models:
has_clone_base_uuid = hasattr(special_model, "clone_base_uuid") # backwards compatibility
if special_model.model.is_in_effect():
attachment = get_mm_attachment(special_model)
if attachment.is_pia(special_model):
special_model.model.inject_unet_conv_in_pia_fancyvideo(model)
if not has_clone_base_uuid or special_model.clone_base_uuid not in clone_uuids:
if has_clone_base_uuid:
clone_uuids.add(special_model.clone_base_uuid)
conds = get_conds_with_c_concat(conds,
attachment.get_pia_c_concat(model, x_in))
elif attachment.is_fancyvideo(special_model):
# TODO: handle other weights
special_model.model.inject_unet_conv_in_pia_fancyvideo(model)
if not has_clone_base_uuid or special_model.clone_base_uuid not in clone_uuids:
if has_clone_base_uuid:
clone_uuids.add(special_model.clone_base_uuid)
conds = get_conds_with_c_concat(conds,
attachment.get_fancy_c_concat(model, x_in))
# add fps_embedding/motion_embedding patches
emb_patches = special_model.model.get_fancyvideo_emb_patches(dtype=x_in.dtype, device=x_in.device)
transformer_patches = model_options["transformer_options"].get("patches", {})
transformer_patches["emb_patch"] = emb_patches
model_options["transformer_options"]["patches"] = transformer_patches
return conds
def restore_special_model_features(self):
for device, motion_models in self.motion_models_devices.items():
model: BaseModel = self.model_patcher_devices[device].model
special_models = motion_models.get_special_models()
if len(special_models) > 0:
for special_model in reversed(special_models):
attachment = get_mm_attachment(special_model)
if attachment.is_pia(special_model):
special_model.model.restore_unet_conv_in_pia_fancyvideo(model)
elif attachment.is_fancyvideo(special_model):
# TODO: fill out
special_model.model.restore_unet_conv_in_pia_fancyvideo(model)
def interrupt_processing(self):
self.processing_interrupted = True
def is_processing_interrupted(self):
return self.processing_interrupted
def reset(self):
self.processing_interrupted = False
self.initialized = False
self.hooks_initialized = False
self.start_step: int = 0
self.last_step: int = 0
self.current_step: int = 0
self.total_steps: int = 0
self.callback_output_dict.clear()
self.callback_output_dict = {}
# model patchers
self.model_patcher_devices.clear()
if self.model_patcher is not None:
del self.model_patcher
self.model_patcher = None
# motion models
self.motion_models_devices.clear()
if self.motion_models is not None:
del self.motion_models
self.motion_models = None
# other
if self.params is not None:
self.params.context_options.reset()
del self.params
self.params = None
if self.sample_settings is not None:
del self.sample_settings
self.sample_settings = None
if self.function_injections is not None:
del self.function_injections
self.function_injections = None
def update_with_inject_params(self, params: InjectionParams):
self.params = params
def is_using_sliding_context(self):
return self.params is not None and self.params.is_using_sliding_context()
def create_exposed_params(self):
# This dict will be exposed to be used by other extensions
# DO NOT change any of the key names
# or I will find you 👁.👁
return {
"full_length": self.params.full_length,
"context_length": self.params.context_options.context_length,
"sub_idxs": self.params.sub_idxs,
}
######################################################################
##################################################################################
##################################################################################
#### Code Injection ##################################################
def unlimited_memory_required(*args, **kwargs):
return 0
def groupnorm_mm_factory(params: InjectionParams, manual_cast=False):
def groupnorm_mm_forward(self, input: Tensor) -> Tensor:
# axes_factor normalizes batch based on total conds and unconds passed in batch;
# the conds and unconds per batch can change based on VRAM optimizations that may kick in
if not params.is_using_sliding_context():
batched_conds = input.size(0)//params.full_length
else:
batched_conds = input.size(0)//params.context_options.context_length
input = rearrange(input, "(b f) c h w -> b c f h w", b=batched_conds)
if manual_cast:
weight, bias = comfy.ops.cast_bias_weight(self, input)
else:
weight, bias = self.weight, self.bias
input = group_norm(input, self.num_groups, weight, bias, self.eps)
input = rearrange(input, "b c f h w -> (b f) c h w", b=batched_conds)
return input
return groupnorm_mm_forward
def create_special_model_apply_model_wrapper(model_options: dict):
comfy.patcher_extension.add_wrapper_with_key(WrappersMP.APPLY_MODEL,
"ADE_special_model_apply_model",
_apply_model_wrapper,
model_options, is_model_options=True)
def _apply_model_wrapper(executor, *args, **kwargs):
# args (from BaseModel._apply_model):
# 0: x
# 1: t
# 2: c_concat
# 3: c_crossattn
# 4: control
# 5: transformer_options
x: Tensor = args[0]
transformer_options = args[5]
cond_or_uncond = transformer_options["cond_or_uncond"]
ad_params = transformer_options["ad_params"]
ADGS: AnimateDiffGlobalState = transformer_options["ADGS"]
motion_models = ADGS.motion_models_devices.get(x.device, None)
if motion_models is not None:
for motion_model in motion_models.models:
attachment = get_mm_attachment(motion_model)
attachment.prepare_alcmi2v_features(motion_model, x=x, cond_or_uncond=cond_or_uncond, ad_params=ad_params, latent_format=executor.class_obj.latent_format)
attachment.prepare_camera_features(motion_model, x=x, cond_or_uncond=cond_or_uncond, ad_params=ad_params)
attachment.prepare_motionctrl_camera(motion_model, x=x, transformer_options=transformer_options)
del x
return executor(*args, **kwargs)
def create_diffusion_model_groupnormed_wrapper(model_options: dict, inject_helper: 'GroupnormInjectHelper'):
comfy.patcher_extension.add_wrapper_with_key(WrappersMP.DIFFUSION_MODEL,
"ADE_groupnormed_diffusion_model",
_diffusion_model_groupnormed_wrapper_factory(inject_helper),
model_options, is_model_options=True)
def _diffusion_model_groupnormed_wrapper_factory(inject_helper: 'GroupnormInjectHelper'):
def _diffusion_model_groupnormed_wrapper(executor, *args, **kwargs):
with inject_helper:
return executor(*args, **kwargs)
return _diffusion_model_groupnormed_wrapper
######################################################################
##################################################################################
def create_prepare_sampling_wrapper(model_options: dict, params: InjectionParams):
# keep backwards compatibility
if hasattr(WrappersMP, "PREPARE_SAMPLING"):
comfy.patcher_extension.add_wrapper_with_key(WrappersMP.PREPARE_SAMPLING,
"ADE_prepare_sampling",
_prepare_sampling_wrapper_factory(params),
model_options, is_model_options=True)
def _prepare_sampling_wrapper_factory(params: InjectionParams):
def _prepare_sampling_wrapper(executor, model: ModelPatcher, noise_shape: Tensor, *args, **kwargs):
# TODO: handle various dims instead of defaulting to 0th
# limit noise_shape length to context_length for more accurate vram use estimation
noise_shape = [min(noise_shape[0], params.context_options.context_length)] + list(noise_shape[1:])
return executor(model, noise_shape, *args, **kwargs)
return _prepare_sampling_wrapper
def apply_params_to_motion_models(helper: ModelPatcherHelper, params: InjectionParams, model_options: dict[str]):
params = params.clone()
for context in params.context_options.contexts:
if context.context_schedule == ContextSchedules.VIEW_AS_CONTEXT:
context.context_length = params.full_length
# TODO: check (and message) should be different based on use_on_equal_length setting
if params.context_options.context_length:
pass
allow_equal = params.context_options.use_on_equal_length
if params.context_options.context_length:
enough_latents = params.full_length >= params.context_options.context_length if allow_equal else params.full_length > params.context_options.context_length
else:
enough_latents = False
if params.context_options.context_length and enough_latents:
logger.info(f"Sliding context window sampling activated - latents passed in ({params.full_length}) greater than context_length {params.context_options.context_length}.")
create_prepare_sampling_wrapper(model_options, params)
else:
logger.info(f"Regular sampling activated - latents passed in ({params.full_length}) less or equal to context_length {params.context_options.context_length}.")
params.reset_context()
if helper.get_motion_models():
# if no context_length, treat video length as intended AD frame window
if not params.context_options.context_length:
for motion_model in helper.get_motion_models():
if not motion_model.model.is_length_valid_for_encoding_max_len(params.full_length):
raise ValueError(f"Without a context window, AnimateDiff model {motion_model.model.mm_info.mm_name} has upper limit of {motion_model.model.encoding_max_len} frames, but received {params.full_length} latents.")
helper.set_video_length(params.full_length, params.full_length)
# otherwise, treat context_length as intended AD frame window
else:
for motion_model in helper.get_motion_models():
view_options = params.context_options.view_options
context_length = view_options.context_length if view_options else params.context_options.context_length
if not motion_model.model.is_length_valid_for_encoding_max_len(context_length):
raise ValueError(f"AnimateDiff model {motion_model.model.mm_info.mm_name} has upper limit of {motion_model.model.encoding_max_len} frames for a context window, but received context length of {params.context_options.context_length}.")
helper.set_video_length(params.context_options.context_length, params.full_length)
# inject model
module_str = "modules" if len(helper.get_motion_models()) > 1 else "module"
logger.info(f"Using motion {module_str} {helper.get_name_string(show_version=True)}.")
return params
class FunctionInjectionHolder:
def __init__(self):
self.temp_uninjector: GroupnormUninjectHelper = GroupnormUninjectHelper()
self.groupnorm_injector: GroupnormInjectHelper = GroupnormInjectHelper()
def inject_functions(self, helper: ModelPatcherHelper, params: InjectionParams, model_options: dict):
# Save Original Functions - order must match between here and restore_functions
self.orig_memory_required = None
self.orig_groupnorm_forward = torch.nn.GroupNorm.forward # used to normalize latents to remove "flickering" of colors/brightness between frames
self.orig_groupnorm_forward_comfy_cast_weights = comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights
self.orig_sampling_function = comfy.samplers.sampling_function # used to support sliding context windows in samplers
# Inject Functions
if params.unlimited_area_hack:
# allows for "unlimited area hack" to prevent halving of conds/unconds
self.orig_memory_required = helper.model.model.memory_required
helper.model.model.memory_required = unlimited_memory_required
if helper.get_motion_models():
# only apply groupnorm hack if PIA, v2 and not properly applied, or v1
info: AnimateDiffInfo = helper.get_motion_models()[0].model.mm_info
if ((info.mm_format == AnimateDiffFormat.PIA) or
(info.mm_version == AnimateDiffVersion.V2 and not params.apply_v2_properly) or
(info.mm_version == AnimateDiffVersion.V1)):
self.inject_groupnorm_forward = groupnorm_mm_factory(params)
self.inject_groupnorm_forward_comfy_cast_weights = groupnorm_mm_factory(params, manual_cast=True)
self.groupnorm_injector = GroupnormInjectHelper(self)
create_diffusion_model_groupnormed_wrapper(model_options, self.groupnorm_injector)
# if mps device (Apple Silicon), disable batched conds to avoid black images with groupnorm hack
try:
if helper.model.load_device.type == "mps":
self.orig_memory_required = helper.model.model.memory_required
helper.model.model.memory_required = unlimited_memory_required
except Exception:
pass
# if AnimateLCM-I2V, CameraCtrl, or MotionCtrl present, inject apply_model to handle correctly
for motion_model in helper.get_motion_models():
if motion_model.model.needs_apply_model_wrapper():
create_special_model_apply_model_wrapper(model_options)
break
del info
comfy.samplers.sampling_function = evolved_sampling_function
# create temp_uninjector to help facilitate uninjecting functions
self.temp_uninjector = GroupnormUninjectHelper(self)
def restore_functions(self, helper: ModelPatcherHelper):
# Restoration
try:
if self.orig_memory_required is not None:
helper.model.model.memory_required = self.orig_memory_required
torch.nn.GroupNorm.forward = self.orig_groupnorm_forward
comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights = self.orig_groupnorm_forward_comfy_cast_weights
comfy.samplers.sampling_function = self.orig_sampling_function
except AttributeError:
logger.error("Encountered AttributeError while attempting to restore functions - likely, an error occured while trying " + \
"to save original functions before injection, and a more specific error was thrown by ComfyUI.")
class GroupnormUninjectHelper:
def __init__(self, holder: FunctionInjectionHolder=None):
self.holder = holder
self.previous_gn_forward = None
self.previous_dwi_gn_cast_weights = None
def __enter__(self):
if self.holder is None:
return self
# backup current groupnorm funcs
self.previous_gn_forward = torch.nn.GroupNorm.forward
self.previous_dwi_gn_cast_weights = comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights
# restore groupnorm to default state
torch.nn.GroupNorm.forward = self.holder.orig_groupnorm_forward
comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights = self.holder.orig_groupnorm_forward_comfy_cast_weights
return self
def __exit__(self, *args, **kwargs):
if self.holder is None:
return
# bring groupnorm back to previous state
torch.nn.GroupNorm.forward = self.previous_gn_forward
comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights = self.previous_dwi_gn_cast_weights
self.previous_gn_forward = None
self.previous_dwi_gn_cast_weights = None
class GroupnormInjectHelper:
def __init__(self, holder: FunctionInjectionHolder=None):
self.holder = holder
self.previous_gn_forward = None
self.previous_dwi_gn_cast_weights = None
def __enter__(self):
if self.holder is None:
return self
# store previous gn_forward
self.previous_gn_forward = torch.nn.GroupNorm.forward
self.previous_dwi_gn_cast_weights = comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights
# inject groupnorm functions
torch.nn.GroupNorm.forward = self.holder.inject_groupnorm_forward
comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights = self.holder.inject_groupnorm_forward_comfy_cast_weights
return self
def __exit__(self, *args, **kwargs):
if self.holder is None:
return
# bring groupnorm back to previous state
torch.nn.GroupNorm.forward = self.previous_gn_forward
comfy.ops.disable_weight_init.GroupNorm.forward_comfy_cast_weights = self.previous_dwi_gn_cast_weights
self.previous_gn_forward = None
self.previous_dwi_gn_cast_weights = None
def outer_sample_wrapper(executor: WrapperExecutor, *args, **kwargs):
# NOTE: OUTER_SAMPLE wrapper patch in ModelPatcher
latents = None
cached_latents = None
cached_noise = None
function_injections = FunctionInjectionHolder()
hmref_attachment = None
try:
guider: comfy.samplers.CFGGuider = executor.class_obj
helper = ModelPatcherHelper(guider.model_patcher)
orig_model_options = guider.model_options
guider.model_options = comfy.model_patcher.create_model_options_clone(guider.model_options)
# create ADGS in transformer_options
ADGS = AnimateDiffGlobalState()
guider.model_options["transformer_options"]["ADGS"] = ADGS
args = list(args)
# clone params from model
params = helper.get_params().clone()
# get amount of latents passed in, and store in params
noise: Tensor = args[0]
latents: Tensor = args[1]
params.full_length = latents.size(0)
# reset global state
ADGS.reset()
# apply custom noise, if needed
disable_noise = math.isclose(noise.max(), 0.0)
seed = args[-1]
# apply params to motion model
params = apply_params_to_motion_models(helper, params, model_options=guider.model_options)
# store and inject funtions
function_injections.inject_functions(helper, params, guider.model_options)
# prepare noise_extra_args for noise generation purposes
noise_extra_args = {"disable_noise": disable_noise}
params.set_noise_extra_args(noise_extra_args)
# if noise is not disabled, do noise stuff
if not disable_noise:
noise = helper.get_sample_settings().prepare_noise(seed, latents, noise, extra_args=noise_extra_args, force_create_noise=False)
# handle AncestralOptions, if present
if helper.get_sample_settings().ancestral_opts is not None:
helper.get_sample_settings().ancestral_opts.add_wrapper_sampler_sample(guider.model_options, seed)
# callback setup
original_callback = args[-3]
def ad_callback(step, x0, x, total_steps):
if original_callback is not None:
original_callback(step, x0, x, total_steps)
# store denoised latents if image_injection will be used
if not helper.get_sample_settings().image_injection.is_empty():
ADGS.callback_output_dict["x0"] = x0
# update GLOBALSTATE for next iteration
ADGS.current_step = ADGS.start_step + step + 1
args[-3] = ad_callback
ADGS.model_patcher = helper.model
ADGS.motion_models = MotionModelGroup(helper.get_motion_models())
ADGS.sample_settings = helper.get_sample_settings()
ADGS.function_injections = function_injections
# apply adapt_denoise_steps - does not work here! would need to mess with this elsewhere...
# TODO: implement proper wrapper to handle this feature...
iter_opts = helper.get_sample_settings().iteration_opts
iter_opts.initialize(latents)
# cache initial noise and latents, if needed
if iter_opts.cache_init_latents:
cached_latents = latents.clone()
if iter_opts.cache_init_noise:
cached_noise = noise.clone()
# prepare iter opts preprocess kwargs, if needed
iter_kwargs = {}
# NOTE: original KSampler stuff is not doable here, so skipping...
# NOTE: this will never be used as I have hidden HelloMeme RefNet nodes from being loaded
# if have HMRef, then do what's needed
hmref_attachment = get_hmref_attachment(helper.model)
if hmref_attachment is not None:
ref_latents = None
#sigmas: Tensor = args[3]
try:
hmref_attachment.prepare_ref_latent(helper.model.model, x=latents)
# NOTE: trying out using the hmrefnet more like other types of refnets
create_hmref_apply_model_wrapper(guider.model_options)
# ref_latents = hmref_attachment.prepare_ref_latent(helper.model.model, x=latents)
# ref_sigmas = torch.tensor([helper.model.model.model_sampling.sigma_min, torch.tensor(0.0)]).to(device=sigmas.device, dtype=sigmas.dtype)
# new_args = args.copy()
# new_args[3] = ref_sigmas
# make sure transformer_options has necessary HMREF stuff
# guider.model_options["transformer_options"][HMRefConst.REF_STATES] = HMRefStates()
# guider.model_options["transformer_options"][HMRefConst.REF_MODE] = HMRefConst.WRITE
# ADGS.update_with_inject_params(params)
# ADGS.start_step = 0
# ADGS.current_step = ADGS.start_step
# ADGS.last_step = 0
# executor(*tuple(new_args), **kwargs)
# guider.model_options["transformer_options"][HMRefConst.REF_MODE] = HMRefConst.READ
finally:
del ref_latents
#del sigmas
for curr_i in range(iter_opts.iterations):
# handle GLOBALSTATE vars and step tally
# NOTE: only KSampler/KSampler (Advanced) would have steps;
# explore modifying ComfyUI to provide this when possible?
ADGS.update_with_inject_params(params)
ADGS.start_step = kwargs.get("start_step") or 0
ADGS.current_step = ADGS.start_step
ADGS.last_step = kwargs.get("last_step") or 0
if iter_opts.iterations > 1:
logger.info(f"Iteration {curr_i+1}/{iter_opts.iterations}")
# perform any iter_opts preprocessing on latents
latents, noise = iter_opts.preprocess_latents(curr_i=curr_i, model=helper.model, latents=latents, noise=noise,
cached_latents=cached_latents, cached_noise=cached_noise,
seed=seed,
sample_settings=helper.get_sample_settings(), noise_extra_args=noise_extra_args,
**iter_kwargs)
if helper.get_sample_settings().noise_calibration is not None:
latents, noise = helper.get_sample_settings().noise_calibration.perform_calibration(sample_func=executor, model=helper.model, latents=latents, noise=noise,
is_custom=True, args=args, kwargs=kwargs)
# finalize latent_image in args
args[0] = noise
args[1] = latents
helper.pre_run()
if ADGS.sample_settings.image_injection.is_empty():
latents = executor(*tuple(args), **kwargs)
else:
ADGS.sample_settings.image_injection.initialize_timesteps(helper.model.model)
sigmas = args[3]
sigmas_list, injection_list = ADGS.sample_settings.image_injection.custom_ksampler_get_injections(helper.model, sigmas)
# useful logging
if len(injection_list) > 0:
inj_str = "s" if len(injection_list) > 1 else ""
logger.info(f"Found {len(injection_list)} applicable image injection{inj_str}; sampling will be split into {len(sigmas_list)}.")
else:
logger.info(f"Found 0 applicable image injections within the step bounds of this sampler; sampling unaffected.")
is_first = True
new_noise = noise
for i in range(len(sigmas_list)):
args[0] = new_noise
args[1] = latents
args[3] = sigmas_list[i]
latents = executor(*tuple(args), **kwargs)
if is_first:
new_noise = torch.zeros_like(latents)
# if injection expected, perform injection
if i < len(injection_list):
to_inject = injection_list[i]
latents = perform_image_injection(ADGS, helper.model.model, latents, to_inject)
return latents
finally:
guider.model_options = orig_model_options
del noise
del latents
del cached_latents
del cached_noise
del orig_model_options
if hmref_attachment is not None:
hmref_attachment.cleanup()
del hmref_attachment
# reset global state
ADGS.reset()
# clean motion_models
helper.cleanup_motion_models()
# restore injected functions
function_injections.restore_functions(helper)
del function_injections
del helper
def evolved_sampling_function(model, x: Tensor, timestep: Tensor, uncond, cond, cond_scale, model_options: dict={}, seed=None):
ADGS: AnimateDiffGlobalState = model_options["transformer_options"]["ADGS"]
ADGS.initialize(model, model_options)
ADGS.prepare_current_keyframes(x=x, timestep=timestep, transformer_options=model_options["transformer_options"])
try:
# add AD/evolved-sampling params to model_options (transformer_options)
model_options = model_options.copy()
if "transformer_options" not in model_options:
model_options["transformer_options"] = {}
else:
model_options["transformer_options"] = model_options["transformer_options"].copy()
model_options["transformer_options"]["ad_params"] = ADGS.create_exposed_params()
cond, uncond = ADGS.perform_special_model_features([cond, uncond], x, model_options)
# only use cfg1_optimization if not using custom_cfg or explicitly set to 1.0
uncond_ = uncond
if ADGS.sample_settings.custom_cfg is None and math.isclose(cond_scale, 1.0) and model_options.get("disable_cfg1_optimization", False) == False:
uncond_ = None
elif ADGS.sample_settings.custom_cfg is not None:
cfg_multival = ADGS.sample_settings.custom_cfg.cfg_multival
if type(cfg_multival) != Tensor and math.isclose(cfg_multival, 1.0) and model_options.get("disable_cfg1_optimization", False) == False:
uncond_ = None
del cfg_multival
cond_pred, uncond_pred = comfy.samplers.calc_cond_batch(model, [cond, uncond_], x, timestep, model_options)
if ADGS.sample_settings.custom_cfg is not None:
cond_scale = ADGS.sample_settings.custom_cfg.get_cfg_scale(cond_pred)
model_options = ADGS.sample_settings.custom_cfg.get_model_options(model_options)
return comfy.samplers.cfg_function(model, cond_pred, uncond_pred, cond_scale, x, timestep, model_options, cond, uncond)
finally:
ADGS.restore_special_model_features()
def perform_image_injection(ADGS: AnimateDiffGlobalState, model: BaseModel, latents: Tensor, to_inject: NoisedImageToInject) -> Tensor:
# NOTE: the latents here have already been process_latent_out'ed
# get currently used models so they can be properly reloaded after perfoming VAE Encoding
cached_loaded_models = comfy.model_management.loaded_models(only_currently_used=True)
try:
orig_device = latents.device
orig_dtype = latents.dtype
# follow same steps as in KSampler Custom to get same denoised_x0 value
x0 = ADGS.callback_output_dict.get("x0", None)
if x0 is None:
return latents
# x0 should be process_latent_out'ed to match expected state of latents between nodes
x0 = model.process_latent_out(x0)
# first, decode x0 into images, and then re-encode
decoded_images = vae_decode_raw_batched(to_inject.vae, x0)
encoded_x0 = vae_encode_raw_batched(to_inject.vae, decoded_images)
# get difference between sampled latents and encoded_x0
latents = latents.to(device=encoded_x0.device)
encoded_x0 = latents - encoded_x0
# get mask, or default to full mask
mask = to_inject.mask
b, c, h, w = encoded_x0.shape
# need to resize images and masks to match expected dims
if mask is None:
mask = torch.ones(1, h, w)
if to_inject.invert_mask:
mask = 1.0 - mask
opts = to_inject.img_inject_opts
# composite decoded_x0 with image to inject;
# make sure to move dims to match expectation of (b,c,h,w)
composited = composite_extend(destination=decoded_images.movedim(-1, 1), source=to_inject.image.movedim(-1, 1), x=opts.x, y=opts.y, mask=mask,
multiplier=to_inject.vae.downscale_ratio, resize_source=to_inject.resize_image).movedim(1, -1)
# encode composited to get latent representation
composited = vae_encode_raw_batched(to_inject.vae, composited)
# add encoded_x0 diff to composited
composited += encoded_x0
if type(to_inject.strength_multival) == float and math.isclose(1.0, to_inject.strength_multival):
return composited.to(dtype=orig_dtype, device=orig_device)
strength = to_inject.strength_multival
if type(strength) == Tensor:
strength = extend_to_batch_size(prepare_mask_batch(strength, composited.shape), b)
return (composited * strength + latents * (1.0 - strength)).to(dtype=orig_dtype, device=orig_device)
finally:
comfy.model_management.load_models_gpu(cached_loaded_models)
def prepare_control_objects(control: ControlBase, full_idxs: list[int], ADGS: AnimateDiffGlobalState, device=None):
# get controlnet matching device (multigpu only)
if device is not None:
control = control.get_instance_for_device(device)
if control.previous_controlnet is not None:
prepare_control_objects(control.previous_controlnet, full_idxs, ADGS, device)
if not hasattr(control, "sub_idxs"):
raise ValueError(f"Control type {type(control).__name__} may not support required features for sliding context window; \
use ControlNet nodes from Kosinkadink/ComfyUI-Advanced-ControlNet, or make sure ComfyUI-Advanced-ControlNet is updated.")
if not hasattr(control, "ACN_VERSION"):
control.sub_idxs = full_idxs
control.full_latent_length = ADGS.params.full_length
control.context_length = ADGS.params.context_options.context_length
return control
# initial sliding_calc_conds_batch inspired by ashen's initial hack for 16-frame sliding context:
# https://github.com/comfyanonymous/ComfyUI/compare/master...ashen-sensored:ComfyUI:master
def get_resized_cond(cond_in, x_in: Tensor, full_idxs: list[int], context_length: int, ADGS: AnimateDiffGlobalState, device=None) -> list:
if cond_in is None:
return None
# reuse or resize cond items to match context requirements
resized_cond = []
# cond object is a list containing a dict - outer list is irrelevant, so just loop through it
for actual_cond in cond_in:
resized_actual_cond = actual_cond.copy()
# now we are in the inner dict - "pooled_output" is a tensor, "control" is a ControlBase object, "model_conds" is dictionary
for key in actual_cond:
try:
cond_item = actual_cond[key]
if isinstance(cond_item, Tensor):
# check that tensor is the expected length - x.size(0)
if cond_item.size(0) == x_in.size(0):
# if so, it's subsetting time - tell controls the expected indeces so they can handle them
actual_cond_item = cond_item[full_idxs]
resized_actual_cond[key] = actual_cond_item.to(device)
else:
resized_actual_cond[key] = cond_item.to(device)
# look for control
elif key == "control":
resized_actual_cond[key] = prepare_control_objects(cond_item, full_idxs, ADGS, device)
elif isinstance(cond_item, dict):
new_cond_item = cond_item.copy()
# when in dictionary, look for tensors and CONDCrossAttn [comfy/conds.py] (has cond attr that is a tensor)
for cond_key, cond_value in new_cond_item.items():
if isinstance(cond_value, Tensor):
if cond_value.size(0) == x_in.size(0):
new_cond_item[cond_key] = cond_value[full_idxs].to(device)
# if has cond that is a Tensor, check if needs to be subset
elif hasattr(cond_value, "cond") and isinstance(cond_value.cond, Tensor):
if cond_value.cond.size(0) == x_in.size(0):
new_cond_item[cond_key] = cond_value._copy_with(cond_value.cond[full_idxs].to(device))
elif cond_key == "num_video_frames": # for SVD
new_cond_item[cond_key] = cond_value._copy_with(cond_value.cond)
new_cond_item[cond_key].cond = context_length
resized_actual_cond[key] = new_cond_item
else:
resized_actual_cond[key] = cond_item
finally:
del cond_item # just in case to prevent VRAM issues
resized_cond.append(resized_actual_cond)
return resized_cond
def sliding_calc_cond_batch(executor: Callable, model, conds: list[list[dict]], x_in: Tensor, timestep, model_options):
ADGS: AnimateDiffGlobalState = model_options["transformer_options"]["ADGS"]
if not ADGS.is_using_sliding_context():
if model_options["transformer_options"].get("context_window", None) is not None:
window = model_options["transformer_options"]["context_window"]
model_options["transformer_options"]["ad_params"]["sub_idxs"] = window.index_list
model_options["transformer_options"]["ad_params"]["context_length"] = len(window.index_list)
device = None
if device is None:
motion_models_devices = ADGS.motion_models_devices.values()
else:
motion_models_devices = ADGS.motion_models_devices.get(device, None)
if motion_models_devices is None:
motion_models_devices = []
else:
motion_models_devices = [motion_models_devices]
model = ADGS.model_patcher_devices[device].model
for motion_models in motion_models_devices:
motion_models.set_sub_idxs(window.index_list)
motion_models.set_video_length(len(window.index_list), ADGS.params.full_length)
return executor(model, conds, x_in, timestep, model_options)
# get context windows
ADGS.params.context_options.step = ADGS.current_step
context_windows = get_context_windows(ADGS.params.full_length, ADGS.params.context_options)
enumerated_context_windows = list(enumerate(context_windows))
if ADGS.motion_models is not None:
ADGS.motion_models.set_view_options(ADGS.params.context_options.view_options)
# prepare final conds, out_counts, and biases
conds_final = [torch.zeros_like(x_in) for _ in conds]
if ADGS.params.context_options.fuse_method == ContextFuseMethod.RELATIVE:
# counts_final not used for RELATIVE fuse_method
counts_final = [torch.ones((x_in.shape[0], 1, 1, 1), device=x_in.device) for _ in conds]
else:
# default counts_final initialization
counts_final = [torch.zeros((x_in.shape[0], 1, 1, 1), device=x_in.device) for _ in conds]
biases_final = [([0.0] * x_in.shape[0]) for _ in conds]
CREF = ContextRefHandler()
NAIVE = NaiveReuseHandler()
allow_multigpu_contexts = 'multigpu_clones' in model_options
ctxs_relative_work = None
# need to make sure that contextref stuff gets cleaned up, no matter what
try:
if ADGS.params.context_options.extras.should_run_context_ref():
CREF.initialize_step(timestep, model_options, ADGS)
allow_multigpu_contexts = False # ContextRef requires windows get run in a specific order
if ADGS.params.context_options.extras.should_run_naive_reuse():
NAIVE.initialize_step(x_in, conds)
if allow_multigpu_contexts:
cond_count = len([x for x in conds if x is not None])
context_count = len(context_windows)
# figure out if conds or ctxs would be better for splitting work
cond_relative_work, idle_cond = comfy.multigpu.load_balance_devices(model_options, cond_count, return_idle_time=True)
ctxs_relative_work, idle_ctxs = comfy.multigpu.load_balance_devices(model_options, context_count, return_idle_time=True,
work_normalized=cond_count)
# if splitting conds is better to splitting contexts, don't split contexts
if idle_cond < idle_ctxs:
allow_multigpu_contexts = False
if allow_multigpu_contexts:
multigpu_windows = {}
start_idx = 0
for device, work in ctxs_relative_work.items():
if work == 0:
continue
end_idx = start_idx + work
multigpu_windows[device] = enumerated_context_windows[start_idx:end_idx]
start_idx = end_idx
first_device = list(multigpu_windows.keys())[0]
def _handle_context_batch(device: torch.device, batch_windows, model_options_batch, results: list[list[ContextResults]]):
model_options_batch = comfy.model_patcher.create_model_options_clone(model_options_batch)
comfy.samplers.cast_transformer_options(model_options_batch["transformer_options"], device=device)
with torch.no_grad():
results.append(evaluate_context_windows(executor, model, x_in, conds, timestep, batch_windows, model_options_batch, CREF, ADGS,
device=device, first_device=first_device))
combined_results: list[list[ContextResults]] = []
threads: list[threading.Thread] = []
try:
multigpu_entry = model_options.pop('multigpu_clones')
# for device, thread_windows in multigpu_windows.items():
# _handle_context_batch(device, thread_windows, combined_results)
for device, thread_windows in multigpu_windows.items():
new_thread = threading.Thread(target=_handle_context_batch, args=(device, thread_windows, model_options, combined_results))
threads.append(new_thread)
new_thread.start()
for thread in threads:
thread.join()
if ADGS.is_processing_interrupted():
raise comfy.model_management.InterruptProcessingException()
finally:
model_options['multigpu_clones'] = multigpu_entry
for results in combined_results:
for result in results:
combine_context_window_results(x_in, result.sub_conds_out, result.sub_conds, result.ctx_idxs, result.window_idx, len(enumerated_context_windows), timestep,
ADGS, NAIVE, CREF, conds_final, counts_final, biases_final)
else:
for enum_window in enumerated_context_windows:
results = evaluate_context_windows(executor, model, x_in, conds, timestep, [enum_window], model_options, CREF, ADGS)
for result in results:
combine_context_window_results(x_in, result.sub_conds_out, result.sub_conds, result.ctx_idxs, result.window_idx, len(enumerated_context_windows), timestep,
ADGS, NAIVE, CREF, conds_final, counts_final, biases_final)
finally:
CREF.cleanup(model_options)
# handle NaiveReuse
NAIVE.apply_cached(x_in, conds_final, counts_final, ADGS)
# finalize conds
if ADGS.params.context_options.fuse_method == ContextFuseMethod.RELATIVE:
# relative is already normalized, so return as is
del counts_final
return conds_final
else:
# normalize conds via division by context usage counts
for i in range(len(conds_final)):
conds_final[i] /= counts_final[i]
del counts_final
return conds_final
ContextResults = collections.namedtuple("ContextResults", ['window_idx', 'sub_conds_out', 'sub_conds', 'ctx_idxs'])
def evaluate_context_windows(executor, model: BaseModel, x_in: Tensor, conds, timestep: Tensor, enumerated_context_windows: list[tuple[int, list[int]]],
model_options, CREF: ContextRefHandler, ADGS: AnimateDiffGlobalState, device=None, first_device=None):
results: list[ContextResults] = []
for window_idx, ctx_idxs in enumerated_context_windows:
# allow processing to end between context window executions for faster Cancel
if device is None:
# non-MultiGPU execution
comfy.model_management.throw_exception_if_processing_interrupted()
elif first_device == device:
# MultiGPU execution
try:
comfy.model_management.throw_exception_if_processing_interrupted()
if ADGS.is_processing_interrupted():
break
except comfy.model_management.InterruptProcessingException:
ADGS.interrupt_processing()
break
else:
# MultiGPU execution
if ADGS.is_processing_interrupted():
break
ADGS.params.sub_idxs = ctx_idxs
if device is None:
motion_models_devices = ADGS.motion_models_devices.values()
else:
motion_models_devices = ADGS.motion_models_devices.get(device, None)
if motion_models_devices is None:
motion_models_devices = []
else:
motion_models_devices = [motion_models_devices]
model = ADGS.model_patcher_devices[device].model
for motion_models in motion_models_devices:
motion_models.set_sub_idxs(ctx_idxs)
motion_models.set_video_length(len(ctx_idxs), ADGS.params.full_length)
# update exposed params
model_options["transformer_options"]["ad_params"]["sub_idxs"] = ctx_idxs
model_options["transformer_options"]["ad_params"]["context_length"] = len(ctx_idxs)
# get subsections of x, timestep, conds
sub_x = x_in[ctx_idxs].to(device)
sub_timestep = timestep[ctx_idxs].to(device)
sub_conds = [get_resized_cond(cond, x_in, ctx_idxs, len(ctx_idxs), ADGS, device) for cond in conds]
CREF.prepare_referencecn(ctx_idxs, window_idx, model_options)
sub_conds_out = executor(model, sub_conds, sub_x, sub_timestep, model_options)
if device is not None:
for i in range(len(sub_conds_out)):
sub_conds_out[i] = sub_conds_out[i].to(x_in.device)
results.append(ContextResults(window_idx, sub_conds_out, sub_conds, ctx_idxs))
return results
def combine_context_window_results(x_in: Tensor, sub_conds_out, sub_conds, ctx_idxs: list[int], window_idx: int, total_windows: int, timestep,
ADGS: AnimateDiffGlobalState, NAIVE: NaiveReuseHandler, CREF: ContextRefHandler,
conds_final: list[Tensor], counts_final: list[Tensor], biases_final: list[Tensor]):
if ADGS.params.context_options.fuse_method == ContextFuseMethod.RELATIVE:
for pos, idx in enumerate(ctx_idxs):
# bias is the influence of a specific index in relation to the whole context window
bias = 1 - abs(idx - (ctx_idxs[0] + ctx_idxs[-1]) / 2) / ((ctx_idxs[-1] - ctx_idxs[0] + 1e-2) / 2)
bias = max(1e-2, bias)
# take weighted average relative to total bias of current idx
for i in range(len(sub_conds_out)):
bias_total = biases_final[i][idx]
prev_weight = (bias_total / (bias_total + bias))
new_weight = (bias / (bias_total + bias))
conds_final[i][idx] = conds_final[i][idx] * prev_weight + sub_conds_out[i][pos] * new_weight
biases_final[i][idx] = bias_total + bias
else:
# add conds and counts based on weights of fuse method
weights = get_context_weights(len(ctx_idxs), x_in.shape[0], ctx_idxs, ADGS.params.context_options, sigma=timestep)
weights_tensor = torch.Tensor(weights).to(device=x_in.device).unsqueeze(-1).unsqueeze(-1).unsqueeze(-1)
for i in range(len(sub_conds_out)):
conds_final[i][ctx_idxs] += sub_conds_out[i] * weights_tensor
counts_final[i][ctx_idxs] += weights_tensor
# handle NaiveReuse
NAIVE.cache_first_context_results(window_idx, ctx_idxs, sub_conds, conds_final, counts_final)
# handle ContextRef
CREF.finalize_step()
def get_conds_with_c_concat(conds: list[dict], c_concat: comfy.conds.CONDNoiseShape):
new_conds = []
for cond in conds:
resized_cond = None
if cond is not None:
# reuse or resize cond items to match context requirements
resized_cond = []
# cond object is a list containing a dict - outer list is irrelevant, so just loop through it
for actual_cond in cond:
resized_actual_cond = actual_cond.copy()
# now we are in the inner dict - "pooled_output" is a tensor, "control" is a ControlBase object, "model_conds" is dictionary
for key in actual_cond:
if key == "model_conds":
new_model_conds = actual_cond[key].copy()
if "c_concat" in new_model_conds:
new_model_conds["c_concat"] = comfy.conds.CONDNoiseShape(torch.cat(new_model_conds["c_concat"].cond, c_concat.cond, dim=1))
else:
new_model_conds["c_concat"] = c_concat
resized_actual_cond[key] = new_model_conds
resized_cond.append(resized_actual_cond)
new_conds.append(resized_cond)
return new_conds