Spaces:
Configuration error
Configuration error
#credit to huchenlei for this | |
#from https://github.com/huchenlei/ComfyUI-layerdiffuse/blob/151f7460bbc9d7437d4f0010f21f80178f7a84a6/layered_diffusion.py#L34-L96 | |
import torch | |
import functools | |
from comfy.model_patcher import ModelPatcher | |
import comfy.model_management | |
def calculate_weight_adjust_channel(func): | |
"""Patches ComfyUI's LoRA weight application to accept multi-channel inputs.""" | |
def calculate_weight(patches, weight: torch.Tensor, key: str) -> torch.Tensor: | |
weight = func(patches, weight, key) | |
for p in patches: | |
alpha = p[0] | |
v = p[1] | |
# The recursion call should be handled in the main func call. | |
if isinstance(v, list): | |
continue | |
if len(v) == 1: | |
patch_type = "diff" | |
elif len(v) == 2: | |
patch_type = v[0] | |
v = v[1] | |
if patch_type == "diff": | |
w1 = v[0] | |
if all( | |
( | |
alpha != 0.0, | |
w1.shape != weight.shape, | |
w1.ndim == weight.ndim == 4, | |
) | |
): | |
new_shape = [max(n, m) for n, m in zip(weight.shape, w1.shape)] | |
print( | |
f"IC-Light: Merged with {key} channel changed from {weight.shape} to {new_shape}" | |
) | |
new_diff = alpha * comfy.model_management.cast_to_device( | |
w1, weight.device, weight.dtype | |
) | |
new_weight = torch.zeros(size=new_shape).to(weight) | |
new_weight[ | |
: weight.shape[0], | |
: weight.shape[1], | |
: weight.shape[2], | |
: weight.shape[3], | |
] = weight | |
new_weight[ | |
: new_diff.shape[0], | |
: new_diff.shape[1], | |
: new_diff.shape[2], | |
: new_diff.shape[3], | |
] += new_diff | |
new_weight = new_weight.contiguous().clone() | |
weight = new_weight | |
return weight | |
return calculate_weight |