243 lines
11 KiB
Python
243 lines
11 KiB
Python
import os
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import sys
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import numpy as np
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import torch
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from diffusers import FlowMatchEulerDiscreteScheduler
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from omegaconf import OmegaConf
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from PIL import Image
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current_file_path = os.path.abspath(__file__)
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project_roots = [os.path.dirname(current_file_path), os.path.dirname(os.path.dirname(current_file_path)), os.path.dirname(os.path.dirname(os.path.dirname(current_file_path)))]
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for project_root in project_roots:
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sys.path.insert(0, project_root) if project_root not in sys.path else None
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from videox_fun.dist import set_multi_gpus_devices, shard_model
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from videox_fun.models import (AutoencoderKL, AutoTokenizer, Qwen3ForCausalLM,
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ZImageControlTransformer2DModel)
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from videox_fun.models.cache_utils import get_teacache_coefficients
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from videox_fun.pipeline import ZImageControlPipeline
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from videox_fun.utils.fm_solvers import FlowDPMSolverMultistepScheduler
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from videox_fun.utils.fm_solvers_unipc import FlowUniPCMultistepScheduler
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from videox_fun.utils.fp8_optimization import (convert_model_weight_to_float8,
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convert_weight_dtype_wrapper)
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from videox_fun.utils.lora_utils import merge_lora, unmerge_lora
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from videox_fun.utils.utils import (filter_kwargs, get_image, get_image_latent,
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get_image_to_video_latent,
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get_video_to_video_latent,
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save_videos_grid)
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# GPU memory mode, which can be chosen in [model_full_load, model_full_load_and_qfloat8, model_cpu_offload, model_cpu_offload_and_qfloat8, sequential_cpu_offload].
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# model_full_load means that the entire model will be moved to the GPU.
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#
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# model_full_load_and_qfloat8 means that the entire model will be moved to the GPU,
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# and the transformer model has been quantized to float8, which can save more GPU memory.
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#
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# model_cpu_offload means that the entire model will be moved to the CPU after use, which can save some GPU memory.
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#
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# model_cpu_offload_and_qfloat8 indicates that the entire model will be moved to the CPU after use,
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# and the transformer model has been quantized to float8, which can save more GPU memory.
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#
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# sequential_cpu_offload means that each layer of the model will be moved to the CPU after use,
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# resulting in slower speeds but saving a large amount of GPU memory.
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GPU_memory_mode = "model_cpu_offload"
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# Multi GPUs config
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# Please ensure that the product of ulysses_degree and ring_degree equals the number of GPUs used.
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# For example, if you are using 8 GPUs, you can set ulysses_degree = 2 and ring_degree = 4.
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# If you are using 1 GPU, you can set ulysses_degree = 1 and ring_degree = 1.
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ulysses_degree = 1
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ring_degree = 1
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# Use FSDP to save more GPU memory in multi gpus.
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fsdp_dit = False
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fsdp_text_encoder = False
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# Compile will give a speedup in fixed resolution and need a little GPU memory.
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# The compile_dit is not compatible with the fsdp_dit and sequential_cpu_offload.
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compile_dit = False
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# Config and model path
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config_path = "config/z_image/z_image_control_2.1.yaml"
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# model path
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model_name = "models/Diffusion_Transformer/Z-Image-Turbo"
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# Choose the sampler in "Flow", "Flow_Unipc", "Flow_DPM++"
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sampler_name = "Flow"
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# Load pretrained model if need
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transformer_path = "models/Personalized_Model/Z-Image-Turbo-Fun-Controlnet-Tile-2.1-8steps.safetensors"
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vae_path = None
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lora_path = None
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# Other params
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sample_size = [1328, 1328]
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# Use torch.float16 if GPU does not support torch.bfloat16
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# ome graphics cards, such as v100, 2080ti, do not support torch.bfloat16
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weight_dtype = torch.bfloat16
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control_image = "asset/low_res.png"
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# The inpaint_image and mask_image is useless in tile model, just set them to None.
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inpaint_image = None
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mask_image = None
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control_context_scale = 0.85
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# Please use as detailed a prompt as possible to describe the object that needs to be generated.
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prompt = "这是一张充满都市气息的户外人物肖像照片。画面中是一位年轻男性，他展现出时尚而自信的形象。人物拥有精心打理的短发发型，两侧修剪得较短，顶部保留一定长度，呈现出流行的Undercut造型。他佩戴着一副时尚的浅色墨镜或透明镜框眼镜，为整体造型增添了潮流感。脸上洋溢着温和友善的笑容，神情放松自然，给人以阳光开朗的印象。他身穿一件经典的牛仔外套，这件单品永不过时，展现出休闲又有型的穿衣风格。牛仔外套的蓝色调与整体氛围十分协调，领口处隐约可见内搭的衣物。照片的背景是典型的城市街景，可以看到模糊的建筑物、街道和行人，营造出繁华都市的氛围。背景经过了恰当的虚化处理，使人物主体更加突出。光线明亮而柔和，可能是白天的自然光，为照片带来清新通透的视觉效果。整张照片构图专业，景深控制得当，完美捕捉了一个现代都市年轻人充满活力和自信的瞬间，展现出积极向上的生活态度。"
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negative_prompt = " "
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guidance_scale = 0.00
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seed = 43
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num_inference_steps = 8
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lora_weight = 0.55
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save_path = "samples/z-image-t2i-control"
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device = set_multi_gpus_devices(ulysses_degree, ring_degree)
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config = OmegaConf.load(config_path)
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transformer = ZImageControlTransformer2DModel.from_pretrained(
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model_name,
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subfolder="transformer",
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low_cpu_mem_usage=True,
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torch_dtype=weight_dtype,
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transformer_additional_kwargs=OmegaConf.to_container(config['transformer_additional_kwargs']),
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).to(weight_dtype)
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if transformer_path is not None:
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print(f"From checkpoint: {transformer_path}")
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if transformer_path.endswith("safetensors"):
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from safetensors.torch import load_file, safe_open
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state_dict = load_file(transformer_path)
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else:
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state_dict = torch.load(transformer_path, map_location="cpu")
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state_dict = state_dict["state_dict"] if "state_dict" in state_dict else state_dict
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m, u = transformer.load_state_dict(state_dict, strict=False)
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print(f"missing keys: {len(m)}, unexpected keys: {len(u)}")
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# Get Vae
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vae = AutoencoderKL.from_pretrained(
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model_name,
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subfolder="vae"
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).to(weight_dtype)
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if vae_path is not None:
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print(f"From checkpoint: {vae_path}")
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if vae_path.endswith("safetensors"):
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from safetensors.torch import load_file, safe_open
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state_dict = load_file(vae_path)
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else:
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state_dict = torch.load(vae_path, map_location="cpu")
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state_dict = state_dict["state_dict"] if "state_dict" in state_dict else state_dict
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m, u = vae.load_state_dict(state_dict, strict=False)
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print(f"missing keys: {len(m)}, unexpected keys: {len(u)}")
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# Get tokenizer and text_encoder
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tokenizer = AutoTokenizer.from_pretrained(
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model_name, subfolder="tokenizer"
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)
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text_encoder = Qwen3ForCausalLM.from_pretrained(
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model_name, subfolder="text_encoder", torch_dtype=weight_dtype,
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low_cpu_mem_usage=True,
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)
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# Get Scheduler
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Chosen_Scheduler = scheduler_dict = {
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"Flow": FlowMatchEulerDiscreteScheduler,
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"Flow_Unipc": FlowUniPCMultistepScheduler,
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"Flow_DPM++": FlowDPMSolverMultistepScheduler,
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}[sampler_name]
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scheduler = Chosen_Scheduler.from_pretrained(
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model_name,
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subfolder="scheduler"
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)
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pipeline = ZImageControlPipeline(
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vae=vae,
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tokenizer=tokenizer,
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text_encoder=text_encoder,
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transformer=transformer,
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scheduler=scheduler,
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)
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if ulysses_degree > 1 or ring_degree > 1:
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from functools import partial
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transformer.enable_multi_gpus_inference()
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if fsdp_dit:
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shard_fn = partial(shard_model, device_id=device, param_dtype=weight_dtype, module_to_wrapper=list(transformer.layers))
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pipeline.transformer = shard_fn(pipeline.transformer)
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print("Add FSDP DIT")
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if fsdp_text_encoder:
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shard_fn = partial(shard_model, device_id=device, param_dtype=weight_dtype, module_to_wrapper=list(text_encoder.model.layers))
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text_encoder = shard_fn(text_encoder)
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print("Add FSDP TEXT ENCODER")
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if compile_dit:
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for i in range(len(pipeline.transformer.transformer_blocks)):
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pipeline.transformer.transformer_blocks[i] = torch.compile(pipeline.transformer.transformer_blocks[i])
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print("Add Compile")
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if GPU_memory_mode == "sequential_cpu_offload":
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pipeline.enable_sequential_cpu_offload(device=device)
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elif GPU_memory_mode == "model_cpu_offload_and_qfloat8":
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convert_model_weight_to_float8(transformer, exclude_module_name=["x_pad_token", "cap_pad_token"], device=device)
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convert_weight_dtype_wrapper(transformer, weight_dtype)
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pipeline.enable_model_cpu_offload(device=device)
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elif GPU_memory_mode == "model_cpu_offload":
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pipeline.enable_model_cpu_offload(device=device)
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elif GPU_memory_mode == "model_full_load_and_qfloat8":
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convert_model_weight_to_float8(transformer, exclude_module_name=["x_pad_token", "cap_pad_token"], device=device)
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convert_weight_dtype_wrapper(transformer, weight_dtype)
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pipeline.to(device=device)
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else:
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pipeline.to(device=device)
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generator = torch.Generator(device=device).manual_seed(seed)
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if lora_path is not None:
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pipeline = merge_lora(pipeline, lora_path, lora_weight, device=device, dtype=weight_dtype)
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with torch.no_grad():
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if inpaint_image is not None:
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inpaint_image = get_image_latent(inpaint_image, sample_size=sample_size)[:, :, 0]
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else:
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inpaint_image = torch.zeros([1, 3, sample_size[0], sample_size[1]])
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if mask_image is not None:
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mask_image = get_image_latent(mask_image, sample_size=sample_size)[:, :1, 0]
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else:
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mask_image = torch.ones([1, 1, sample_size[0], sample_size[1]]) * 255
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if control_image is not None:
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control_image = get_image_latent(control_image, sample_size=sample_size)[:, :, 0]
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sample = pipeline(
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prompt = prompt,
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negative_prompt = negative_prompt,
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height = sample_size[0],
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width = sample_size[1],
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generator = generator,
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guidance_scale = guidance_scale,
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image = inpaint_image,
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mask_image = mask_image,
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control_image = control_image,
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num_inference_steps = num_inference_steps,
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control_context_scale = control_context_scale,
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).images
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if lora_path is not None:
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pipeline = unmerge_lora(pipeline, lora_path, lora_weight, device=device, dtype=weight_dtype)
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def save_results():
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if not os.path.exists(save_path):
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os.makedirs(save_path, exist_ok=True)
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index = len([path for path in os.listdir(save_path)]) + 1
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prefix = str(index).zfill(8)
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video_path = os.path.join(save_path, prefix + ".png")
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image = sample[0]
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image.save(video_path)
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if ulysses_degree * ring_degree > 1:
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import torch.distributed as dist
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if dist.get_rank() == 0:
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save_results()
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else:
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save_results() |