Spaces:
Runtime error
Runtime error
File size: 5,801 Bytes
77783a6 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 |
import torch
from huggingface_guess import model_list
from backend.diffusion_engine.base import ForgeDiffusionEngine, ForgeObjects
from backend.patcher.clip import CLIP
from backend.patcher.vae import VAE
from backend.patcher.unet import UnetPatcher
from backend.text_processing.classic_engine import ClassicTextProcessingEngine
from backend.text_processing.t5_engine import T5TextProcessingEngine
from backend.args import dynamic_args
from backend import memory_management
from backend.modules.k_prediction import PredictionDiscreteFlow
from modules.shared import opts
## patch SD3 Class in huggingface_guess.model_list
def SD3_clip_target(self, state_dict={}):
return {'clip_l': 'text_encoder', 'clip_g': 'text_encoder_2', 't5xxl': 'text_encoder_3'}
model_list.SD3.unet_target = 'transformer'
model_list.SD3.clip_target = SD3_clip_target
## end patch
class StableDiffusion3(ForgeDiffusionEngine):
matched_guesses = [model_list.SD3]
def __init__(self, estimated_config, huggingface_components):
super().__init__(estimated_config, huggingface_components)
self.is_inpaint = False
clip = CLIP(
model_dict={
'clip_l': huggingface_components['text_encoder'],
'clip_g': huggingface_components['text_encoder_2'],
't5xxl' : huggingface_components['text_encoder_3']
},
tokenizer_dict={
'clip_l': huggingface_components['tokenizer'],
'clip_g': huggingface_components['tokenizer_2'],
't5xxl' : huggingface_components['tokenizer_3']
}
)
k_predictor = PredictionDiscreteFlow(shift=3.0)
vae = VAE(model=huggingface_components['vae'])
unet = UnetPatcher.from_model(
model=huggingface_components['transformer'],
diffusers_scheduler= None,
k_predictor=k_predictor,
config=estimated_config
)
self.text_processing_engine_l = ClassicTextProcessingEngine(
text_encoder=clip.cond_stage_model.clip_l,
tokenizer=clip.tokenizer.clip_l,
embedding_dir=dynamic_args['embedding_dir'],
embedding_key='clip_l',
embedding_expected_shape=768,
emphasis_name=dynamic_args['emphasis_name'],
text_projection=True,
minimal_clip_skip=1,
clip_skip=1,
return_pooled=True,
final_layer_norm=False,
)
self.text_processing_engine_g = ClassicTextProcessingEngine(
text_encoder=clip.cond_stage_model.clip_g,
tokenizer=clip.tokenizer.clip_g,
embedding_dir=dynamic_args['embedding_dir'],
embedding_key='clip_g',
embedding_expected_shape=1280,
emphasis_name=dynamic_args['emphasis_name'],
text_projection=True,
minimal_clip_skip=1,
clip_skip=1,
return_pooled=True,
final_layer_norm=False,
)
self.text_processing_engine_t5 = T5TextProcessingEngine(
text_encoder=clip.cond_stage_model.t5xxl,
tokenizer=clip.tokenizer.t5xxl,
emphasis_name=dynamic_args['emphasis_name'],
)
self.forge_objects = ForgeObjects(unet=unet, clip=clip, vae=vae, clipvision=None)
self.forge_objects_original = self.forge_objects.shallow_copy()
self.forge_objects_after_applying_lora = self.forge_objects.shallow_copy()
# WebUI Legacy
self.is_sd3 = True
def set_clip_skip(self, clip_skip):
self.text_processing_engine_l.clip_skip = clip_skip
self.text_processing_engine_g.clip_skip = clip_skip
@torch.inference_mode()
def get_learned_conditioning(self, prompt: list[str]):
memory_management.load_model_gpu(self.forge_objects.clip.patcher)
cond_g, g_pooled = self.text_processing_engine_g(prompt)
cond_l, l_pooled = self.text_processing_engine_l(prompt)
if opts.sd3_enable_t5:
cond_t5 = self.text_processing_engine_t5(prompt)
else:
cond_t5 = torch.zeros([len(prompt), 256, 4096]).to(cond_l.device)
is_negative_prompt = getattr(prompt, 'is_negative_prompt', False)
force_zero_negative_prompt = is_negative_prompt and all(x == '' for x in prompt)
if force_zero_negative_prompt:
l_pooled = torch.zeros_like(l_pooled)
g_pooled = torch.zeros_like(g_pooled)
cond_l = torch.zeros_like(cond_l)
cond_g = torch.zeros_like(cond_g)
cond_t5 = torch.zeros_like(cond_t5)
cond_lg = torch.cat([cond_l, cond_g], dim=-1)
cond_lg = torch.nn.functional.pad(cond_lg, (0, 4096 - cond_lg.shape[-1]))
cond = dict(
crossattn=torch.cat([cond_lg, cond_t5], dim=-2),
vector=torch.cat([l_pooled, g_pooled], dim=-1),
)
return cond
@torch.inference_mode()
def get_prompt_lengths_on_ui(self, prompt):
token_count = len(self.text_processing_engine_t5.tokenize([prompt])[0])
return token_count, max(255, token_count)
@torch.inference_mode()
def encode_first_stage(self, x):
sample = self.forge_objects.vae.encode(x.movedim(1, -1) * 0.5 + 0.5)
sample = self.forge_objects.vae.first_stage_model.process_in(sample)
return sample.to(x)
@torch.inference_mode()
def decode_first_stage(self, x):
sample = self.forge_objects.vae.first_stage_model.process_out(x)
sample = self.forge_objects.vae.decode(sample).movedim(-1, 1) * 2.0 - 1.0
return sample.to(x)
|