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82f7fe1
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Update generator.py

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  1. generator.py +259 -601
generator.py CHANGED
@@ -1,5 +1,6 @@
1
  """
2
  Generation logic for Pixagram AI Pixel Art Generator
 
3
  """
4
  import torch
5
  import numpy as np
@@ -7,24 +8,29 @@ import cv2
7
  from PIL import Image
8
  import torch.nn.functional as F
9
  from torchvision import transforms
 
 
10
 
11
  from config import (
12
  device, dtype, TRIGGER_WORD, MULTI_SCALE_FACTORS,
13
- ADAPTIVE_THRESHOLDS, ADAPTIVE_PARAMS, CAPTION_CONFIG, IDENTITY_BOOST_MULTIPLIER
 
14
  )
15
  from utils import (
16
  sanitize_text, enhanced_color_match, color_match, create_face_mask,
17
  draw_kps, get_demographic_description, calculate_optimal_size, enhance_face_crop
18
  )
19
  from models import (
20
- load_face_analysis, load_depth_detector, load_controlnets, load_image_encoder,
21
  load_sdxl_pipeline, load_lora, setup_ip_adapter, setup_compel,
22
- setup_scheduler, optimize_pipeline, load_caption_model, set_clip_skip
 
 
23
  )
24
 
25
 
26
  class RetroArtConverter:
27
- """Main class for retro art generation"""
28
 
29
  def __init__(self):
30
  self.device = device
@@ -32,54 +38,52 @@ class RetroArtConverter:
32
  self.models_loaded = {
33
  'custom_checkpoint': False,
34
  'lora': False,
35
- 'instantid': False,
36
- 'zoe_depth': False,
37
- 'ip_adapter': False
38
  }
39
 
40
- # Initialize face analysis
41
  self.face_app, self.face_detection_enabled = load_face_analysis()
42
 
43
- # Load Zoe Depth detector
44
- self.zoe_depth, zoe_success = load_depth_detector()
45
- self.models_loaded['zoe_depth'] = zoe_success
46
-
47
- # Load ControlNets
48
- controlnet_depth, self.controlnet_instantid, instantid_success = load_controlnets()
49
- self.controlnet_depth = controlnet_depth
50
- self.instantid_enabled = instantid_success
51
- self.models_loaded['instantid'] = instantid_success
52
-
53
- # Load image encoder
54
- if self.instantid_enabled:
55
- self.image_encoder = load_image_encoder()
56
- else:
57
- self.image_encoder = None
58
-
59
- # Determine which controlnets to use
60
- if self.instantid_enabled and self.controlnet_instantid is not None:
61
- controlnets = [self.controlnet_instantid, controlnet_depth]
62
- print(f"Initializing with multiple ControlNets: InstantID + Depth")
63
  else:
 
64
  controlnets = controlnet_depth
65
  print(f"Initializing with single ControlNet: Depth only")
66
-
 
67
  # Load SDXL pipeline
68
  self.pipe, checkpoint_success = load_sdxl_pipeline(controlnets)
69
  self.models_loaded['custom_checkpoint'] = checkpoint_success
70
 
71
- # Load LORA
72
  lora_success = load_lora(self.pipe)
73
  self.models_loaded['lora'] = lora_success
74
 
75
- # Setup IP-Adapter
76
- if self.instantid_enabled and self.image_encoder is not None:
77
- self.image_proj_model, ip_adapter_success = setup_ip_adapter(self.pipe, self.image_encoder)
78
- self.models_loaded['ip_adapter'] = ip_adapter_success
79
- else:
80
- print("[INFO] Face preservation: InstantID ControlNet keypoints only")
81
- self.models_loaded['ip_adapter'] = False
82
- self.image_proj_model = None
83
 
84
  # Setup Compel
85
  self.compel, self.use_compel = setup_compel(self.pipe)
@@ -93,490 +97,161 @@ class RetroArtConverter:
93
  # Load caption model
94
  self.caption_processor, self.caption_model, self.caption_enabled, self.caption_model_type = load_caption_model()
95
 
96
- # Report caption model status
97
- if self.caption_enabled and self.caption_model is not None:
98
- if self.caption_model_type == "git":
99
- print(" [OK] Using GIT for detailed captions")
100
- elif self.caption_model_type == "blip":
101
- print(" [OK] Using BLIP for standard captions")
102
- else:
103
- print(" [OK] Caption model loaded")
104
-
105
-
106
  # Set CLIP skip
107
  set_clip_skip(self.pipe)
108
 
109
- # Track controlnet configuration
110
- self.using_multiple_controlnets = isinstance(controlnets, list)
111
- print(f"Pipeline initialized with {'multiple' if self.using_multiple_controlnets else 'single'} ControlNet(s)")
112
-
113
  # Print model status
114
  self._print_status()
115
 
116
- print(" [OK] Model initialization complete!")
117
 
118
  def _print_status(self):
119
  """Print model loading status"""
120
- print("\n=== MODEL STATUS ===")
121
  for model, loaded in self.models_loaded.items():
 
 
122
  status = "[OK] LOADED" if loaded else "[FALLBACK/DISABLED]"
123
  print(f"{model}: {status}")
124
  print("===================\n")
125
-
126
- print("=== UPGRADE VERIFICATION ===")
127
- try:
128
- from resampler_enhanced import EnhancedResampler
129
- from ip_attention_processor_enhanced import EnhancedIPAttnProcessor2_0
130
-
131
- resampler_check = isinstance(self.image_proj_model, EnhancedResampler) if hasattr(self, 'image_proj_model') and self.image_proj_model is not None else False
132
- custom_attn_check = any(isinstance(p, EnhancedIPAttnProcessor2_0) for p in self.pipe.unet.attn_processors.values()) if hasattr(self, 'pipe') else False
133
-
134
- print(f"Enhanced Perceiver Resampler: {'[OK] ACTIVE' if resampler_check else '[INFO] Not active'}")
135
- print(f"Enhanced IP-Adapter Attention: {'[OK] ACTIVE' if custom_attn_check else '[INFO] Not active'}")
136
-
137
- if resampler_check and custom_attn_check:
138
- print("[SUCCESS] Face preservation upgrade fully active")
139
- print(" Expected improvement: +10-15% face similarity")
140
- elif resampler_check or custom_attn_check:
141
- print("[PARTIAL] Some upgrades active")
142
- else:
143
- print("[INFO] Using standard components")
144
- except Exception as e:
145
- print(f"[INFO] Verification skipped: {e}")
146
- print("============================\n")
147
-
148
- def get_depth_map(self, image):
149
- """Generate depth map using Zoe Depth"""
150
- if self.zoe_depth is not None:
151
- try:
152
- if image.mode != 'RGB':
153
- image = image.convert('RGB')
154
-
155
- orig_width, orig_height = image.size
156
- # **FIX 1 START: Ensure all size variables are standard Python int**
157
- orig_width = int(orig_width)
158
- orig_height = int(orig_height)
159
-
160
- # FIXED: Use multiples of 64 (not 32)
161
- target_width = int((orig_width // 64) * 64)
162
- target_height = int((orig_height // 64) * 64)
163
-
164
- target_width = int(max(64, target_width))
165
- target_height = int(max(64, target_height))
166
-
167
- # Create an explicit tuple of standard ints
168
- size_for_depth = (int(target_width), int(target_height))
169
-
170
- # Always resize using the explicit int tuple to avoid numpy.int64 issues
171
- # This replaces the conditional resize
172
- image_for_depth = image.resize(size_for_depth, Image.LANCZOS)
173
-
174
- if target_width != orig_width or target_height != orig_height:
175
- print(f"[DEPTH] Resized for ZoeDetector: {orig_width}x{orig_height} -> {target_width}x{target_height}")
176
-
177
- # FIXED: Add torch.no_grad() wrapper
178
- with torch.no_grad():
179
- depth_image = self.zoe_depth(image_for_depth) # Use the correctly-typed resized image
180
-
181
- depth_width, depth_height = depth_image.size
182
- if depth_width != orig_width or depth_height != orig_height:
183
- # Resize back to the original size that get_depth_map received
184
- depth_image = depth_image.resize((int(orig_width), int(orig_height)), Image.LANCZOS)
185
- # **FIX 1 END**
186
-
187
- print(f"[DEPTH] Zoe depth map generated: {orig_width}x{orig_height}")
188
- return depth_image
189
-
190
- except Exception as e:
191
- print(f"[DEPTH] ZoeDetector failed ({e}), falling back to grayscale depth")
192
- gray = cv2.cvtColor(np.array(image), cv2.COLOR_RGB2GRAY)
193
- depth_colored = cv2.cvtColor(gray, cv2.COLOR_GRAY2RGB)
194
- return Image.fromarray(depth_colored)
195
- else:
196
- gray = cv2.cvtColor(np.array(image), cv2.COLOR_RGB2GRAY)
197
- depth_colored = cv2.cvtColor(gray, cv2.COLOR_GRAY2RGB)
198
- return Image.fromarray(depth_colored)
199
-
200
 
201
  def add_trigger_word(self, prompt):
202
  """Add trigger word to prompt if not present"""
203
  if TRIGGER_WORD.lower() not in prompt.lower():
204
- # **FIX 3 START: Handle empty or blank prompt**
205
  if not prompt or not prompt.strip():
206
  return TRIGGER_WORD
207
- # **FIX 3 END**
208
  return f"{TRIGGER_WORD}, {prompt}"
209
  return prompt
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
210
 
211
- def extract_multi_scale_face(self, face_crop, face):
212
- """
213
- Extract face features at multiple scales for better detail.
214
- +1-2% improvement in face preservation.
215
- """
216
- try:
217
- multi_scale_embeds = []
218
-
219
- for scale in MULTI_SCALE_FACTORS:
220
- # Resize
221
- w, h = face_crop.size
222
- scaled_size = (int(w * scale), int(h * scale))
223
- scaled_crop = face_crop.resize(scaled_size, Image.LANCZOS)
224
-
225
- # Pad/crop back to original
226
- scaled_crop = scaled_crop.resize((w, h), Image.LANCZOS)
227
-
228
- # Extract features
229
- scaled_array = cv2.cvtColor(np.array(scaled_crop), cv2.COLOR_RGB2BGR)
230
- scaled_faces = self.face_app.get(scaled_array)
231
-
232
- if len(scaled_faces) > 0:
233
- multi_scale_embeds.append(scaled_faces[0].normed_embedding)
234
-
235
- # Average embeddings
236
- if len(multi_scale_embeds) > 0:
237
- averaged = np.mean(multi_scale_embeds, axis=0)
238
- # Renormalize
239
- averaged = averaged / np.linalg.norm(averaged)
240
- print(f"[MULTI-SCALE] Combined {len(multi_scale_embeds)} scales")
241
- return averaged
242
-
243
- return face.normed_embedding
244
-
245
- except Exception as e:
246
- print(f"[MULTI-SCALE] Failed: {e}, using single scale")
247
- return face.normed_embedding
248
-
249
- def detect_face_quality(self, face):
250
- """
251
- Detect face quality and adaptively adjust parameters.
252
- +2-3% consistency improvement.
253
- """
254
- try:
255
- bbox = face.bbox
256
- face_size = (bbox[2] - bbox[0]) * (bbox[3] - bbox[1])
257
- det_score = float(face.det_score) if hasattr(face, 'det_score') else 1.0
258
-
259
- # Small face -> boost identity preservation
260
- if face_size < ADAPTIVE_THRESHOLDS['small_face_size']:
261
- return ADAPTIVE_PARAMS['small_face'].copy()
262
-
263
- # Low confidence -> boost preservation
264
- elif det_score < ADAPTIVE_THRESHOLDS['low_confidence']:
265
- return ADAPTIVE_PARAMS['low_confidence'].copy()
266
-
267
- # Check for profile/side view (if pose available)
268
- elif hasattr(face, 'pose') and len(face.pose) > 1:
269
- try:
270
- yaw = float(face.pose[1])
271
- if abs(yaw) > ADAPTIVE_THRESHOLDS['profile_angle']:
272
- return ADAPTIVE_PARAMS['profile_view'].copy()
273
- except (ValueError, TypeError, IndexError):
274
- pass
275
-
276
- # Good quality face - use provided parameters
277
- return None
278
-
279
- except Exception as e:
280
- print(f"[ADAPTIVE] Quality detection failed: {e}")
281
- return None
282
-
283
- def validate_and_adjust_parameters(self, strength, guidance_scale, lora_scale,
284
- identity_preservation, identity_control_scale,
285
- depth_control_scale, consistency_mode=True):
286
- """
287
- Enhanced parameter validation with stricter rules for consistency.
288
- """
289
- if consistency_mode:
290
- print("[CONSISTENCY] Applying strict parameter validation...")
291
- adjustments = []
292
-
293
- # Rule 1: Strong inverse relationship between identity and LORA
294
- if identity_preservation > 1.2:
295
- original_lora = lora_scale
296
- lora_scale = min(lora_scale, 1.0)
297
- if abs(lora_scale - original_lora) > 0.01:
298
- adjustments.append(f"LORA: {original_lora:.2f}->{lora_scale:.2f} (high identity)")
299
-
300
- # Rule 2: Strength-based profile activation
301
- if strength < 0.5:
302
- # Maximum preservation mode
303
- if identity_preservation < 1.3:
304
- original_identity = identity_preservation
305
- identity_preservation = 1.3
306
- adjustments.append(f"Identity: {original_identity:.2f}->{identity_preservation:.2f} (max preservation)")
307
- if lora_scale > 0.9:
308
- original_lora = lora_scale
309
- lora_scale = 0.9
310
- adjustments.append(f"LORA: {original_lora:.2f}->{lora_scale:.2f} (max preservation)")
311
- if guidance_scale > 1.3:
312
- original_cfg = guidance_scale
313
- guidance_scale = 1.3
314
- adjustments.append(f"CFG: {original_cfg:.2f}->{guidance_scale:.2f} (max preservation)")
315
-
316
- elif strength > 0.7:
317
- # Artistic transformation mode
318
- if identity_preservation > 1.0:
319
- original_identity = identity_preservation
320
- identity_preservation = 1.0
321
- adjustments.append(f"Identity: {original_identity:.2f}->{identity_preservation:.2f} (artistic mode)")
322
- if lora_scale < 1.2:
323
- original_lora = lora_scale
324
- lora_scale = 1.2
325
- adjustments.append(f"LORA: {original_lora:.2f}->{lora_scale:.2f} (artistic mode)")
326
-
327
- # Rule 3: CFG-LORA relationship
328
- if guidance_scale > 1.4 and lora_scale > 1.2:
329
- original_lora = lora_scale
330
- lora_scale = 1.1
331
- adjustments.append(f"LORA: {original_lora:.2f}->{lora_scale:.2f} (high CFG detected)")
332
-
333
- # Rule 4: LCM sweet spot enforcement
334
- original_cfg = guidance_scale
335
- guidance_scale = max(1.0, min(guidance_scale, 1.5))
336
- if abs(guidance_scale - original_cfg) > 0.01:
337
- adjustments.append(f"CFG: {original_cfg:.2f}->{guidance_scale:.2f} (LCM optimal)")
338
-
339
- # Rule 5: ControlNet balance
340
- total_control = identity_control_scale + depth_control_scale
341
- if total_control > 1.7:
342
- scale_factor = 1.7 / total_control
343
- original_id_ctrl = identity_control_scale
344
- original_depth_ctrl = depth_control_scale
345
- identity_control_scale *= scale_factor
346
- depth_control_scale *= scale_factor
347
- adjustments.append(f"ControlNets balanced: ID {original_id_ctrl:.2f}->{identity_control_scale:.2f}, Depth {original_depth_ctrl:.2f}->{depth_control_scale:.2f}")
348
-
349
- # Report adjustments
350
- if adjustments:
351
- print(" [OK] Applied adjustments:")
352
- for adj in adjustments:
353
- print(f" - {adj}")
354
- else:
355
- print(" [OK] Parameters already optimal")
356
-
357
- return strength, guidance_scale, lora_scale, identity_preservation, identity_control_scale, depth_control_scale
358
-
359
- def generate_caption(self, image, max_length=None, num_beams=None):
360
- """Generate a descriptive caption for the image (supports BLIP-2, GIT, BLIP)."""
361
- if not self.caption_enabled or self.caption_model is None:
362
- return None
363
-
364
- # Set defaults based on model type
365
- if max_length is None:
366
- if self.caption_model_type == "blip2":
367
- max_length = 50 # BLIP-2 can handle longer captions
368
- elif self.caption_model_type == "git":
369
- max_length = 40 # GIT also produces good long captions
370
- else:
371
- max_length = CAPTION_CONFIG['max_length'] # BLIP base (20)
372
-
373
- if num_beams is None:
374
- num_beams = CAPTION_CONFIG['num_beams']
375
-
376
- try:
377
- if self.caption_model_type == "blip2":
378
- # BLIP-2 specific processing
379
- inputs = self.caption_processor(image, return_tensors="pt").to(self.device, self.dtype)
380
-
381
- with torch.no_grad():
382
- output = self.caption_model.generate(
383
- **inputs,
384
- max_length=max_length,
385
- num_beams=num_beams,
386
- min_length=10, # Encourage longer captions
387
- length_penalty=1.0,
388
- repetition_penalty=1.5,
389
- early_stopping=True
390
- )
391
-
392
- caption = self.caption_processor.decode(output[0], skip_special_tokens=True)
393
-
394
- elif self.caption_model_type == "git":
395
- # GIT specific processing
396
- inputs = self.caption_processor(images=image, return_tensors="pt").to(self.device, self.dtype)
397
-
398
- with torch.no_grad():
399
- output = self.caption_model.generate(
400
- pixel_values=inputs.pixel_values,
401
- max_length=max_length,
402
- num_beams=num_beams,
403
- min_length=10,
404
- length_penalty=1.0,
405
- repetition_penalty=1.5,
406
- early_stopping=True
407
- )
408
-
409
- caption = self.caption_processor.batch_decode(output, skip_special_tokens=True)[0]
410
-
411
- else:
412
- # BLIP base processing
413
- inputs = self.caption_processor(image, return_tensors="pt").to(self.device, self.dtype)
414
-
415
- with torch.no_grad():
416
- output = self.caption_model.generate(
417
- **inputs,
418
- max_length=max_length,
419
- num_beams=num_beams,
420
- early_stopping=True
421
- )
422
-
423
- caption = self.caption_processor.decode(output[0], skip_special_tokens=True)
424
-
425
- return caption.strip()
426
-
427
- except Exception as e:
428
- print(f"Caption generation failed: {e}")
429
- return None
430
-
431
- def generate_retro_art(
432
  self,
433
- input_image,
434
- prompt="retro game character, vibrant colors, detailed",
435
- negative_prompt="blurry, low quality, ugly, distorted",
436
- num_inference_steps=12,
437
- guidance_scale=1.0,
438
- depth_control_scale=0.8,
439
- identity_control_scale=0.85,
440
- lora_scale=1.0,
441
- identity_preservation=0.8,
442
- strength=0.75,
443
- enable_color_matching=False,
444
  consistency_mode=True,
445
  seed=-1
446
  ):
447
- """Generate retro art with img2img pipeline and enhanced InstantID"""
 
 
 
448
 
449
- # Sanitize text inputs
450
- prompt = sanitize_text(prompt)
451
- negative_prompt = sanitize_text(negative_prompt)
 
 
452
 
453
- # **FIX 3 START: Ensure blank negative prompts are empty strings for Compel**
454
- if not negative_prompt or not negative_prompt.strip():
455
- negative_prompt = ""
456
- # **FIX 3 END**
457
 
458
- # Apply parameter validation
459
- if consistency_mode:
460
- print("\n[CONSISTENCY] Validating and adjusting parameters...")
461
- strength, guidance_scale, lora_scale, identity_preservation, identity_control_scale, depth_control_scale = \
462
- self.validate_and_adjust_parameters(
463
- strength, guidance_scale, lora_scale, identity_preservation,
464
- identity_control_scale, depth_control_scale, consistency_mode
465
- )
466
 
467
- # Add trigger word (handles blank prompt fix)
468
- prompt = self.add_trigger_word(prompt)
469
-
470
- # Calculate optimal size with flexible aspect ratio support
471
- original_width, original_height = input_image.size
472
- target_width, target_height = calculate_optimal_size(original_width, original_height)
473
 
474
- print(f"Resizing from {original_width}x{original_height} to {target_width}x{target_height}")
475
- print(f"Prompt: {prompt}")
476
- print(f"Img2Img Strength: {strength}")
477
 
478
- # Resize with high quality
479
- resized_image = input_image.resize((int(target_width), int(target_height)), Image.LANCZOS)
480
 
481
- # Generate depth map
482
- print("Generating Zoe depth map...")
483
- depth_image = self.get_depth_map(resized_image)
484
- if depth_image.size != (target_width, target_height):
485
- depth_image = depth_image.resize((int(target_width), int(target_height)), Image.LANCZOS)
 
 
 
 
486
 
487
- # Handle face detection
488
- using_multiple_controlnets = self.using_multiple_controlnets
489
- face_kps_image = None
490
- face_embeddings = None
491
- face_crop_enhanced = None
492
- has_detected_faces = False
493
- face_bbox_original = None
 
494
 
495
- if using_multiple_controlnets and self.face_app is not None:
496
- print("Detecting faces and extracting keypoints...")
497
- img_array = cv2.cvtColor(np.array(resized_image), cv2.COLOR_RGB2BGR)
498
- faces = self.face_app.get(img_array)
499
 
500
  if len(faces) > 0:
501
- has_detected_faces = True
502
- print(f"Detected {len(faces)} face(s)")
503
-
504
- # Get largest face
505
- face = sorted(faces, key=lambda x: (x.bbox[2] - x.bbox[0]) * (x.bbox[3] - x.bbox[1]))[-1]
506
-
507
- # ADAPTIVE PARAMETERS
508
- adaptive_params = self.detect_face_quality(face)
509
- if adaptive_params is not None:
510
- print(f"[ADAPTIVE] {adaptive_params['reason']}")
511
- identity_preservation = adaptive_params['identity_preservation']
512
- identity_control_scale = adaptive_params['identity_control_scale']
513
- guidance_scale = adaptive_params['guidance_scale']
514
- lora_scale = adaptive_params['lora_scale']
515
-
516
- # Extract face embeddings
517
- face_embeddings_base = face.normed_embedding
518
-
519
- # Extract face crop
520
- bbox = face.bbox.astype(int)
521
- x1, y1, x2, y2 = bbox[0], bbox[1], bbox[2], bbox[3]
522
- face_bbox_original = [x1, y1, x2, y2]
523
-
524
- # Add padding
525
- face_width = x2 - x1
526
- face_height = y2 - y1
527
- padding_x = int(face_width * 0.3)
528
- padding_y = int(face_height * 0.3)
529
- x1 = max(0, x1 - padding_x)
530
- y1 = max(0, y1 - padding_y)
531
- x2 = min(resized_image.width, x2 + padding_x)
532
- y2 = min(resized_image.height, y2 + padding_y)
533
-
534
- # Crop face region
535
- face_crop = resized_image.crop((x1, y1, x2, y2))
536
-
537
- # MULTI-SCALE PROCESSING
538
- face_embeddings = self.extract_multi_scale_face(face_crop, face)
539
-
540
- # Enhance face crop
541
- face_crop_enhanced = enhance_face_crop(face_crop)
542
 
543
- # Draw keypoints
544
- face_kps = face.kps
545
- face_kps_image = draw_kps(resized_image, face_kps)
546
 
547
- # ENHANCED: Extract comprehensive facial attributes
548
- from utils import get_facial_attributes, build_enhanced_prompt
549
- facial_attrs = get_facial_attributes(face)
550
-
551
- # Update prompt with detected attributes
552
- prompt = build_enhanced_prompt(prompt, facial_attrs, TRIGGER_WORD)
553
-
554
- # Legacy output for compatibility
555
- age = facial_attrs['age']
556
- gender_code = facial_attrs['gender']
557
- det_score = facial_attrs['quality']
558
 
559
- gender_str = 'M' if gender_code == 1 else ('F' if gender_code == 0 else 'N/A')
560
- print(f"Face info: bbox={face.bbox}, age={age if age else 'N/A'}, gender={gender_str}")
561
- print(f"Face crop size: {face_crop.size}, enhanced: {face_crop_enhanced.size if face_crop_enhanced else 'N/A'}")
 
 
 
 
 
 
562
 
563
- # Set LORA scale
 
 
 
564
  if hasattr(self.pipe, 'set_adapters') and self.models_loaded['lora']:
565
  try:
566
  self.pipe.set_adapters(["retroart"], adapter_weights=[lora_scale])
567
- print(f"LORA scale: {lora_scale}")
568
  except Exception as e:
569
- print(f"Could not set LORA scale: {e}")
570
-
571
- # Prepare generation kwargs
572
- pipe_kwargs = {
573
- "image": resized_image,
574
- "strength": strength,
575
- "num_inference_steps": num_inference_steps,
576
- "guidance_scale": guidance_scale,
577
- }
578
 
579
- # Setup generator with seed control
 
580
  if seed == -1:
581
  generator = torch.Generator(device=self.device)
582
  actual_seed = generator.seed()
@@ -586,142 +261,125 @@ class RetroArtConverter:
586
  actual_seed = seed
587
  print(f"[SEED] Using fixed seed: {actual_seed}")
588
 
589
- pipe_kwargs["generator"] = generator
590
 
591
- # Use Compel for prompt encoding if available
592
- if self.use_compel and self.compel is not None:
593
- try:
594
- print("Encoding prompts with Compel...")
595
- conditioning = self.compel(prompt)
596
- negative_conditioning = self.compel(negative_prompt)
597
 
598
- pipe_kwargs["prompt_embeds"] = conditioning[0]
599
- pipe_kwargs["pooled_prompt_embeds"] = conditioning[1]
600
- pipe_kwargs["negative_prompt_embeds"] = negative_conditioning[0]
601
- pipe_kwargs["negative_pooled_prompt_embeds"] = negative_conditioning[1]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
602
 
603
- print("[OK] Using Compel-encoded prompts")
604
- except Exception as e:
605
- print(f"Compel encoding failed, using standard prompts: {e}")
606
- pipe_kwargs["prompt"] = prompt
607
- pipe_kwargs["negative_prompt"] = negative_prompt
608
- else:
609
- pipe_kwargs["prompt"] = prompt
610
- pipe_kwargs["negative_prompt"] = negative_prompt
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
611
 
612
- # Add CLIP skip
613
- if hasattr(self.pipe, 'text_encoder'):
614
- pipe_kwargs["clip_skip"] = 2
 
615
 
616
- # Configure ControlNet inputs
617
- if using_multiple_controlnets and has_detected_faces and face_kps_image is not None:
618
- print("Using InstantID (keypoints) + Depth ControlNets")
619
- control_images = [face_kps_image, depth_image]
620
- conditioning_scales = [identity_control_scale, depth_control_scale]
 
 
 
 
 
 
 
 
 
621
 
622
- pipe_kwargs["control_image"] = control_images
623
- pipe_kwargs["controlnet_conditioning_scale"] = conditioning_scales
 
624
 
625
- # Add face embeddings for IP-Adapter if available
626
- if face_embeddings is not None and self.models_loaded.get('ip_adapter', False) and face_crop_enhanced is not None:
627
- print(f"Processing InstantID face embeddings with Resampler...")
628
-
629
- with torch.no_grad():
630
- # Convert InsightFace embeddings to tensor
631
- face_emb_tensor = torch.from_numpy(face_embeddings).to(
632
- device=self.device,
633
- dtype=self.dtype
634
  )
 
635
 
636
- # Reshape for Resampler: [1, 1, 512]
637
- face_emb_tensor = face_emb_tensor.reshape(1, -1, 512)
 
 
 
638
 
639
- # Pass through Resampler: [1, 1, 512] → [1, 16, 2048]
640
- face_proj_embeds = self.image_proj_model(face_emb_tensor)
641
-
642
- # Scale with identity preservation
643
- boosted_scale = identity_preservation * IDENTITY_BOOST_MULTIPLIER
644
- face_proj_embeds = face_proj_embeds * boosted_scale
645
-
646
- print(f" - Face embedding: {face_emb_tensor.shape}")
647
- print(f" - Resampler output: {face_proj_embeds.shape}")
648
- print(f" - Scale: {boosted_scale:.2f}")
649
-
650
- # CRITICAL: Concatenate with text embeddings (not separate kwargs!)
651
- if 'prompt_embeds' in pipe_kwargs:
652
- # Compel encoded prompts
653
- original_embeds = pipe_kwargs['prompt_embeds']
654
-
655
- # Handle CFG (classifier-free guidance)
656
- if original_embeds.shape[0] > 1: # Has negative + positive
657
- # Duplicate for negative + positive
658
- face_proj_embeds = torch.cat([
659
- torch.zeros_like(face_proj_embeds), # Negative
660
- face_proj_embeds # Positive
661
- ], dim=0)
662
-
663
- # Concatenate: [batch, text_tokens, 2048] + [batch, 16, 2048]
664
- combined_embeds = torch.cat([original_embeds, face_proj_embeds], dim=1)
665
- pipe_kwargs['prompt_embeds'] = combined_embeds
666
-
667
- print(f" - Text embeds: {original_embeds.shape}")
668
- print(f" - Combined embeds: {combined_embeds.shape}")
669
- print(f" [OK] Face embeddings concatenated successfully!")
670
-
671
- else:
672
- print(f" [WARNING] Can't concatenate - no prompt_embeds (use Compel)")
673
 
674
- elif has_detected_faces and self.models_loaded.get('ip_adapter', False):
675
- # Face detected but embeddings unavailable
676
- print(" Face detected but embeddings unavailable, using keypoints only")
677
- # No need for dummy embeddings with concatenation approach
678
-
679
- elif using_multiple_controlnets and not has_detected_faces:
680
- print("Multiple ControlNets available but no faces detected, using depth only")
681
- control_images = [depth_image, depth_image]
682
- conditioning_scales = [0.0, depth_control_scale]
683
 
684
- pipe_kwargs["control_image"] = control_images
685
- pipe_kwargs["controlnet_conditioning_scale"] = conditioning_scales
686
-
687
- else:
688
- print("Using Depth ControlNet only")
689
- pipe_kwargs["control_image"] = depth_image
690
- pipe_kwargs["controlnet_conditioning_scale"] = depth_control_scale
691
-
692
-
693
- # Generate
694
- print(f"Generating with LCM: Steps={num_inference_steps}, CFG={guidance_scale}, Strength={strength}")
695
- print(f"Controlnet scales - Identity: {identity_control_scale}, Depth: {depth_control_scale}")
696
- result = self.pipe(**pipe_kwargs)
697
-
698
- generated_image = result.images[0]
699
-
700
- # Post-processing
701
- if enable_color_matching and has_detected_faces:
702
- print("Applying enhanced face-aware color matching...")
703
- try:
704
- if face_bbox_original is not None:
705
- generated_image = enhanced_color_match(
706
- generated_image,
707
- resized_image,
708
- face_bbox=face_bbox_original
709
- )
710
- print("[OK] Enhanced color matching applied (face-aware)")
711
- else:
712
- generated_image = color_match(generated_image, resized_image, mode='mkl')
713
- print("[OK] Standard color matching applied")
714
- except Exception as e:
715
- print(f"Color matching failed: {e}")
716
- elif enable_color_matching:
717
- print("Applying standard color matching...")
718
- try:
719
- generated_image = color_match(generated_image, resized_image, mode='mkl')
720
- print("[OK] Standard color matching applied")
721
- except Exception as e:
722
- print(f"Color matching failed: {e}")
723
-
724
- return generated_image
725
 
726
 
727
- print("[OK] Generator class ready")
 
1
  """
2
  Generation logic for Pixagram AI Pixel Art Generator
3
+ MODIFIED for IP-Adapter-FaceIDXL (non-plus) and LCM
4
  """
5
  import torch
6
  import numpy as np
 
8
  from PIL import Image
9
  import torch.nn.functional as F
10
  from torchvision import transforms
11
+ # face_align is NO LONGER NEEDED for this class
12
+ from transformers import Pipeline
13
 
14
  from config import (
15
  device, dtype, TRIGGER_WORD, MULTI_SCALE_FACTORS,
16
+ ADAPTIVE_THRESHOLDS, ADAPTIVE_PARAMS, CAPTION_CONFIG, IDENTITY_BOOST_MULTIPLIER,
17
+ MODEL_REPO, MODEL_FILES
18
  )
19
  from utils import (
20
  sanitize_text, enhanced_color_match, color_match, create_face_mask,
21
  draw_kps, get_demographic_description, calculate_optimal_size, enhance_face_crop
22
  )
23
  from models import (
24
+ load_face_analysis, load_depth_detector, load_controlnets,
25
  load_sdxl_pipeline, load_lora, setup_ip_adapter, setup_compel,
26
+ setup_scheduler, optimize_pipeline, load_caption_model, set_clip_skip,
27
+ load_canny_detector
28
+ # load_image_encoder (REMOVED)
29
  )
30
 
31
 
32
  class RetroArtConverter:
33
+ """Main class for retro art generation - IP-Adapter-FaceIDXL / LCM VERSION"""
34
 
35
  def __init__(self):
36
  self.device = device
 
38
  self.models_loaded = {
39
  'custom_checkpoint': False,
40
  'lora': False,
41
+ 'ip_adapter': False,
42
+ 'leres_depth': False,
43
+ 'canny': False
44
  }
45
 
46
+ # Initialize face analysis (buffalo_l)
47
  self.face_app, self.face_detection_enabled = load_face_analysis()
48
 
49
+ # Load LeReS++ Depth detector
50
+ self.leres_detector, leres_success = load_depth_detector()
51
+ self.models_loaded['leres_depth'] = leres_success
52
+
53
+ # Load Canny detector
54
+ self.canny_detector, canny_success = load_canny_detector()
55
+ self.models_loaded['canny'] = canny_success
56
+
57
+ # Load ControlNets (Depth + Canny)
58
+ controlnet_depth, controlnet_canny, cn_canny_success = load_controlnets()
59
+
60
+ if cn_canny_success:
61
+ self.controlnet_depth = controlnet_depth
62
+ self.controlnet_canny = controlnet_canny
63
+ controlnets = [self.controlnet_depth, self.controlnet_canny]
64
+ print(f"Initializing with multiple ControlNets: Depth + Canny")
65
+ self.using_multiple_controlnets = True
 
 
 
66
  else:
67
+ self.controlnet_depth = controlnet_depth
68
  controlnets = controlnet_depth
69
  print(f"Initializing with single ControlNet: Depth only")
70
+ self.using_multiple_controlnets = False
71
+
72
  # Load SDXL pipeline
73
  self.pipe, checkpoint_success = load_sdxl_pipeline(controlnets)
74
  self.models_loaded['custom_checkpoint'] = checkpoint_success
75
 
76
+ # Load LORA (retroart)
77
  lora_success = load_lora(self.pipe)
78
  self.models_loaded['lora'] = lora_success
79
 
80
+ # --- [FIX] REMOVED load_image_encoder ---
81
+ # self.image_encoder_path = load_image_encoder()
82
+
83
+ # Setup IP-Adapter (FaceIDXL wrapper)
84
+ # --- [FIX] REMOVED image_encoder_path from call ---
85
+ self.ip_model, ip_adapter_success = setup_ip_adapter(self.pipe)
86
+ self.models_loaded['ip_adapter'] = ip_adapter_success
 
87
 
88
  # Setup Compel
89
  self.compel, self.use_compel = setup_compel(self.pipe)
 
97
  # Load caption model
98
  self.caption_processor, self.caption_model, self.caption_enabled, self.caption_model_type = load_caption_model()
99
 
 
 
 
 
 
 
 
 
 
 
100
  # Set CLIP skip
101
  set_clip_skip(self.pipe)
102
 
 
 
 
 
103
  # Print model status
104
  self._print_status()
105
 
106
+ print(" [OK] Model initialization complete (FaceIDXL / LCM)!")
107
 
108
  def _print_status(self):
109
  """Print model loading status"""
110
+ print("\n=== MODEL STATUS (FaceIDXL / LCM) ===")
111
  for model, loaded in self.models_loaded.items():
112
+ if model == 'lora_path':
113
+ continue
114
  status = "[OK] LOADED" if loaded else "[FALLBACK/DISABLED]"
115
  print(f"{model}: {status}")
116
  print("===================\n")
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
117
 
118
  def add_trigger_word(self, prompt):
119
  """Add trigger word to prompt if not present"""
120
  if TRIGGER_WORD.lower() not in prompt.lower():
 
121
  if not prompt or not prompt.strip():
122
  return TRIGGER_WORD
 
123
  return f"{TRIGGER_WORD}, {prompt}"
124
  return prompt
125
+
126
+ def get_depth_map(self, image):
127
+ """Generate depth map using LeReS++"""
128
+ if self.leres_detector is not None:
129
+ try:
130
+ if image.mode != 'RGB':
131
+ image = image.convert('RGB')
132
+ print("Generating LeReS++ depth map...")
133
+ depth_map = self.leres_detector(image)
134
+ print(" [OK] LeReS++ map generated")
135
+ return depth_map
136
+ except Exception as e:
137
+ print(f"LeReS++ depth generation failed: {e}")
138
+ print("[WARNING] LeReS detector not loaded, returning blank image.")
139
+ return Image.new("RGB", image.size, (128, 128, 128))
140
 
141
+ def get_canny_map(self, image, low_threshold=100, high_threshold=200):
142
+ """Generate canny map"""
143
+ if self.canny_detector is not None:
144
+ try:
145
+ if image.mode != 'RGB':
146
+ image = image.convert('RGB')
147
+ print("Generating Canny map...")
148
+ canny_map = self.canny_detector(image, low_threshold, high_threshold)
149
+ print(" [OK] Canny map generated")
150
+ return canny_map
151
+ except Exception as e:
152
+ print(f"Canny map generation failed: {e}")
153
+ print("[WARNING] Canny detector not loaded, returning blank image.")
154
+ return Image.new("RGB", image.size, (0, 0, 0))
155
+
156
+ def generate(
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
157
  self,
158
+ image,
159
+ prompt="a person",
160
+ negative_prompt="",
161
+ num_inference_steps=12, # LCM Default
162
+ guidance_scale=1.5, # LCM Default
163
+ strength=0.6,
164
+ lora_scale=1.0, # Re-added lora_scale
165
+ depth_control_scale=0.7,
166
+ canny_control_scale=0.5,
167
+ ip_adapter_scale=1.0, # This will be 'scale'
168
+ enable_color_matching=True,
169
  consistency_mode=True,
170
  seed=-1
171
  ):
172
+ """
173
+ Generate retro art with IP-Adapter-FaceIDXL.
174
+ Falls back to standard pipeline if no face is detected.
175
+ """
176
 
177
+ print(f"\n{'='*60}")
178
+ print(f"Starting FaceID-XL (LCM) generation with:")
179
+ print(f" Steps: {num_inference_steps}, CFG: {guidance_scale}, Strength: {strength}")
180
+ print(f" LoRA Scale: {lora_scale}, IP-Adapter Scale: {ip_adapter_scale}")
181
+ print(f" ControlNets: Depth ({depth_control_scale}), Canny ({canny_control_scale})")
182
 
 
 
 
 
183
 
184
+ if not self.models_loaded['ip_adapter']:
185
+ print("[WARNING] IP-Adapter-FaceID model is not loaded. Face generation will be disabled.")
 
 
 
 
 
 
186
 
187
+ # Prepare input image
188
+ if image.mode != 'RGB':
189
+ image = image.convert('RGB')
 
 
 
190
 
191
+ optimal_width, optimal_height = calculate_optimal_size(image.size[0], image.size[1])
192
+ resized_image = image.resize((optimal_width, optimal_height), Image.LANCZOS)
 
193
 
194
+ print(f"Image resized: {image.size} {resized_image.size}")
 
195
 
196
+ # --- Prompt Enhancement ---
197
+ print("Generating caption for prompt enhancement...")
198
+ input_caption = self.generate_caption(image)
199
+ if input_caption:
200
+ print(f" [OK] Caption: {input_caption}")
201
+ if not prompt or not prompt.strip():
202
+ prompt = input_caption
203
+ else:
204
+ prompt = f"{input_caption}, {prompt}"
205
 
206
+ # Add retroart trigger word
207
+ prompt = self.add_trigger_word(prompt)
208
+ print(f" Final prompt: {prompt}")
209
+
210
+ # --- Face Preparation (NOW OPTIONAL) ---
211
+ print("Detecting faces (buffalo_l)...")
212
+ faceid_embeds = None
213
+ has_face = False
214
 
215
+ try:
216
+ image_np = cv2.cvtColor(np.array(resized_image), cv2.COLOR_RGB2BGR)
217
+ faces = self.face_app.get(image_np)
 
218
 
219
  if len(faces) > 0:
220
+ face = faces[0]
221
+ print(f" [OK] Face detected (score: {face.det_score:.3f})")
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
222
 
223
+ # Get FaceID embeddings ONLY
224
+ faceid_embeds = torch.from_numpy(face.normed_embedding).unsqueeze(0).to(self.device)
 
225
 
226
+ print(" [OK] Face embeddings extracted.")
227
+ has_face = True
228
+ else:
229
+ print(" [INFO] No face detected. Proceeding without face identity.")
230
+ has_face = False
 
 
 
 
 
 
231
 
232
+ except Exception as e:
233
+ print(f" [WARNING] Face detection/prep failed: {e}. Proceeding without face identity.")
234
+ has_face = False
235
+
236
+ # --- ControlNet Maps ---
237
+ print("Generating depth map (LeReS++)...")
238
+ depth_image = self.get_depth_map(resized_image)
239
+ print("Generating canny map...")
240
+ canny_image = self.get_canny_map(resized_image)
241
 
242
+ control_image = [depth_image, canny_image]
243
+ conditioning_scales = [depth_control_scale, canny_control_scale]
244
+
245
+ # --- LORA (RetroArt) Setup ---
246
  if hasattr(self.pipe, 'set_adapters') and self.models_loaded['lora']:
247
  try:
248
  self.pipe.set_adapters(["retroart"], adapter_weights=[lora_scale])
249
+ print(f"RetroArt LORA scale set: {lora_scale}")
250
  except Exception as e:
251
+ print(f" [WARNING] Could not set LORA scale: {e}")
 
 
 
 
 
 
 
 
252
 
253
+ # --- Generator (Seed) Setup ---
254
+ # (Moved before the if/else block to be available for both paths)
255
  if seed == -1:
256
  generator = torch.Generator(device=self.device)
257
  actual_seed = generator.seed()
 
261
  actual_seed = seed
262
  print(f"[SEED] Using fixed seed: {actual_seed}")
263
 
 
264
 
265
+ # --- Generate (Conditional Path) ---
266
+ try:
267
+ if self.models_loaded['ip_adapter'] and has_face:
268
+ # --- PATH 1: FACE DETECTED ---
269
+ print(f"\nGenerating with IPAdapterFaceIDXL (Face Detected):")
270
+ print(f" IP-Adapter scale (Face): {ip_adapter_scale}")
271
 
272
+ generated_images = self.ip_model.generate(
273
+ prompt=prompt,
274
+ negative_prompt=negative_prompt,
275
+ faceid_embeds=faceid_embeds,
276
+ scale=ip_adapter_scale, # Use 'scale' not 's_scale'
277
+ num_samples=4,
278
+ width=optimal_width,
279
+ height=optimal_height,
280
+ num_inference_steps=num_inference_steps,
281
+ seed=actual_seed,
282
+
283
+ # These are passed via **kwargs to self.pipe()
284
+ image=resized_image,
285
+ strength=strength,
286
+ control_image=control_image,
287
+ controlnet_conditioning_scale=conditioning_scales,
288
+ guidance_scale=guidance_scale # Pass CFG
289
+ )
290
+
291
+ else:
292
+ # --- PATH 2: NO FACE DETECTED ---
293
+ print(f"\nGenerating with Standard Pipeline (No Face Detected):")
294
 
295
+ # We must encode prompts ourselves, as we aren't using the wrapper
296
+ kwargs = {
297
+ "width": optimal_width,
298
+ "height": optimal_height,
299
+ "num_inference_steps": num_inference_steps,
300
+ "generator": generator,
301
+ "image": resized_image,
302
+ "strength": strength,
303
+ "control_image": control_image,
304
+ "controlnet_conditioning_scale": conditioning_scales,
305
+ "guidance_scale": guidance_scale,
306
+ "num_images_per_prompt": 4
307
+ }
308
+
309
+ if self.use_compel and self.compel is not None:
310
+ print(" Encoding prompts with Compel...")
311
+ conditioning, pooled = self.compel(prompt)
312
+ negative_conditioning, negative_pooled = self.compel(negative_prompt)
313
+ kwargs["prompt_embeds"] = conditioning
314
+ kwargs["pooled_prompt_embeds"] = pooled
315
+ kwargs["negative_prompt_embeds"] = negative_conditioning
316
+ kwargs["negative_pooled_prompt_embeds"] = negative_pooled
317
+ else:
318
+ print(" Compel not available, using standard prompts.")
319
+ kwargs["prompt"] = prompt
320
+ kwargs["negative_prompt"] = negative_prompt
321
+
322
+ generated_images = self.pipe(**kwargs).images
323
+
324
+ except Exception as e:
325
+ print(f"[ERROR] Generation failed: {e}")
326
+ import traceback
327
+ traceback.print_exc()
328
+ raise
329
 
330
+ # Post-processing
331
+ print(f"\n{'='*60}")
332
+ print("Generation complete! (4 images)")
333
+ print(f"{'='*60}\n")
334
 
335
+ return generated_images
336
+
337
+ def generate_caption(self, image):
338
+ """
339
+ Generate a caption for an image.
340
+ Returns None if caption generation is disabled.
341
+ """
342
+ if not self.caption_enabled or self.caption_model is None:
343
+ return None
344
+
345
+ try:
346
+ # Ensure image is PIL Image
347
+ if not isinstance(image, Image.Image):
348
+ image = Image.fromarray(image)
349
 
350
+ # Convert to RGB if needed
351
+ if image.mode != 'RGB':
352
+ image = image.convert('RGB')
353
 
354
+ print("Generating caption...")
355
+
356
+ with torch.no_grad():
357
+ if self.caption_model_type == 'git':
358
+ # GIT model
359
+ inputs = self.caption_processor(images=image, return_tensors="pt").to(self.device)
360
+ generated_ids = self.caption_model.generate(
361
+ pixel_values=inputs.pixel_values,
362
+ max_length=50
363
  )
364
+ caption = self.caption_processor.batch_decode(generated_ids, skip_special_tokens=True)[0]
365
 
366
+ elif self.caption_model_type == 'blip':
367
+ # BLIP model
368
+ inputs = self.caption_processor(image, return_tensors="pt").to(self.device)
369
+ generated_ids = self.caption_model.generate(**inputs, max_length=50)
370
+ caption = self.caption_processor.decode(generated_ids[0], skip_special_tokens=True)
371
 
372
+ else:
373
+ return None
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
374
 
375
+ # Sanitize caption
376
+ caption = caption.strip()
377
+ print(f" [OK] Caption: {caption}")
378
+ return caption
 
 
 
 
 
379
 
380
+ except Exception as e:
381
+ print(f" [WARNING] Caption generation failed: {e}")
382
+ return None
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
383
 
384
 
385
+ print("[OK] Generator class ready (IP-Adapter-FaceIDXL / LCM VERSION)")