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add support for SDXL loras with te1/te2 modules

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AUTOMATIC1111 2023-07-13 21:17:50 +03:00
parent ff73841c60
commit 6c5f83b19b
3 changed files with 33 additions and 12 deletions
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33
extensions-builtin/Lora/lora.py
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@ -68,6 +68,14 @@ def convert_diffusers_name_to_compvis(key, is_sd2):
return f"transformer_text_model_encoder_layers_{m[0]}_{m[1]}"
if match(m, r"lora_te2_text_model_encoder_layers_(\d+)_(.+)"):
if 'mlp_fc1' in m[1]:
return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc1', 'mlp_c_fc')}"
elif 'mlp_fc2' in m[1]:
return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc2', 'mlp_c_proj')}"
else:
return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('self_attn', 'attn')}"
return key
@ -142,6 +150,16 @@ class LoraUpDownModule:
def assign_lora_names_to_compvis_modules(sd_model):
lora_layer_mapping = {}
if shared.sd_model.is_sdxl:
for i, embedder in enumerate(shared.sd_model.conditioner.embedders):
if not hasattr(embedder, 'wrapped'):
continue
for name, module in embedder.wrapped.named_modules():
lora_name = f'{i}_{name.replace(".", "_")}'
lora_layer_mapping[lora_name] = module
module.lora_layer_name = lora_name
else:
for name, module in shared.sd_model.cond_stage_model.wrapped.named_modules():
lora_name = name.replace(".", "_")
lora_layer_mapping[lora_name] = module
@ -168,10 +186,10 @@ def load_lora(name, lora_on_disk):
keys_failed_to_match = {}
is_sd2 = 'model_transformer_resblocks' in shared.sd_model.lora_layer_mapping
for key_diffusers, weight in sd.items():
key_diffusers_without_lora_parts, lora_key = key_diffusers.split(".", 1)
key = convert_diffusers_name_to_compvis(key_diffusers_without_lora_parts, is_sd2)
for key_lora, weight in sd.items():
key_lora_without_lora_parts, lora_key = key_lora.split(".", 1)
key = convert_diffusers_name_to_compvis(key_lora_without_lora_parts, is_sd2)
sd_module = shared.sd_model.lora_layer_mapping.get(key, None)
if sd_module is None:
@ -180,12 +198,15 @@ def load_lora(name, lora_on_disk):
sd_module = shared.sd_model.lora_layer_mapping.get(m.group(1), None)
# SDXL loras seem to already have correct compvis keys, so only need to replace "lora_unet" with "diffusion_model"
if sd_module is None and "lora_unet" in key_diffusers_without_lora_parts:
key = key_diffusers_without_lora_parts.replace("lora_unet", "diffusion_model")
if sd_module is None and "lora_unet" in key_lora_without_lora_parts:
key = key_lora_without_lora_parts.replace("lora_unet", "diffusion_model")
sd_module = shared.sd_model.lora_layer_mapping.get(key, None)
elif sd_module is None and "lora_te1_text_model" in key_lora_without_lora_parts:
key = key_lora_without_lora_parts.replace("lora_te1_text_model", "0_transformer_text_model")
sd_module = shared.sd_model.lora_layer_mapping.get(key, None)
if sd_module is None:
keys_failed_to_match[key_diffusers] = key
keys_failed_to_match[key_lora] = key
continue
lora_module = lora.modules.get(key, None)

3
modules/sd_models.py
View File

@ -289,7 +289,8 @@ def load_model_weights(model, checkpoint_info: CheckpointInfo, state_dict, timer
if state_dict is None:
state_dict = get_checkpoint_state_dict(checkpoint_info, timer)
if hasattr(model, 'conditioner'):
model.is_sdxl = hasattr(model, 'conditioner')
if model.is_sdxl:
sd_models_xl.extend_sdxl(model)
model.load_state_dict(state_dict, strict=False)

1
modules/sd_models_xl.py
View File

@ -48,7 +48,6 @@ def extend_sdxl(model):
discretization = sgm.modules.diffusionmodules.discretizer.LegacyDDPMDiscretization()
model.alphas_cumprod = torch.asarray(discretization.alphas_cumprod, device=devices.device, dtype=dtype)
model.is_sdxl = True
sgm.models.diffusion.DiffusionEngine.get_learned_conditioning = get_learned_conditioning