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import os, logging, time, argparse, random, tempfile, rembg, shlex, subprocess | |
import gradio as gr | |
import numpy as np | |
import torch | |
from PIL import Image | |
from functools import partial | |
subprocess.run(shlex.split('pip install wheel/torchmcubes-0.1.0-cp310-cp310-linux_x86_64.whl')) | |
from tsr.system import TSR | |
from tsr.utils import remove_background, resize_foreground, to_gradio_3d_orientation | |
from src.scheduler_perflow import PeRFlowScheduler | |
from diffusers import StableDiffusionPipeline, UNet2DConditionModel | |
def merge_delta_weights_into_unet(pipe, delta_weights, org_alpha = 1.0): | |
unet_weights = pipe.unet.state_dict() | |
for key in delta_weights.keys(): | |
dtype = unet_weights[key].dtype | |
try: | |
unet_weights[key] = org_alpha * unet_weights[key].to(dtype=delta_weights[key].dtype) + delta_weights[key].to(device=unet_weights[key].device) | |
except: | |
unet_weights[key] = unet_weights[key].to(dtype=delta_weights[key].dtype) | |
unet_weights[key] = unet_weights[key].to(dtype) | |
pipe.unet.load_state_dict(unet_weights, strict=True) | |
return pipe | |
def setup_seed(seed): | |
random.seed(seed) | |
np.random.seed(seed) | |
torch.manual_seed(seed) | |
torch.cuda.manual_seed_all(seed) | |
torch.backends.cudnn.deterministic = True | |
if torch.cuda.is_available(): | |
device = "cuda:0" | |
else: | |
device = "cpu" | |
### TripoSR | |
model = TSR.from_pretrained( | |
"stabilityai/TripoSR", | |
config_name="config.yaml", | |
weight_name="model.ckpt", | |
) | |
# adjust the chunk size to balance between speed and memory usage | |
model.renderer.set_chunk_size(8192) | |
model.to(device) | |
### PeRFlow-T2I | |
# pipe_t2i = StableDiffusionPipeline.from_pretrained("Lykon/dreamshaper-8", torch_dtype=torch.float16, safety_checker=None) | |
pipe_t2i = StableDiffusionPipeline.from_pretrained("stablediffusionapi/disney-pixar-cartoon", torch_dtype=torch.float16, safety_checker=None) | |
delta_weights = UNet2DConditionModel.from_pretrained("hansyan/piecewise-rectified-flow-delta-weights", torch_dtype=torch.float16, variant="v0-1",).state_dict() | |
pipe_t2i = merge_delta_weights_into_unet(pipe_t2i, delta_weights) | |
pipe_t2i.scheduler = PeRFlowScheduler.from_config(pipe_t2i.scheduler.config, prediction_type="epsilon", num_time_windows=4) | |
pipe_t2i.to('cuda:0', torch.float16) | |
### gradio | |
rembg_session = rembg.new_session() | |
def generate(text, seed): | |
def fill_background(image): | |
image = np.array(image).astype(np.float32) / 255.0 | |
image = image[:, :, :3] * image[:, :, 3:4] + (1 - image[:, :, 3:4]) * 0.5 | |
image = Image.fromarray((image * 255.0).astype(np.uint8)) | |
return image | |
setup_seed(int(seed)) | |
# text = text | |
samples = pipe_t2i( | |
prompt = [text], | |
negative_prompt = ["distorted, blur, low-quality, haze, out of focus"], | |
height = 512, | |
width = 512, | |
# num_inference_steps = 4, | |
# guidance_scale = 4.5, | |
num_inference_steps = 6, | |
guidance_scale = 7, | |
output_type = 'pt', | |
).images | |
samples = torch.nn.functional.interpolate(samples, size=768, mode='bilinear') | |
samples = samples.squeeze(0).permute(1, 2, 0).cpu().numpy()*255. | |
samples = samples.astype(np.uint8) | |
samples = Image.fromarray(samples[:, :, :3]) | |
image = remove_background(samples, rembg_session) | |
image = resize_foreground(image, 0.85) | |
image = fill_background(image) | |
return image | |
def render(image, mc_resolution=256, formats=["obj"]): | |
scene_codes = model(image, device=device) | |
mesh = model.extract_mesh(scene_codes, resolution=mc_resolution)[0] | |
mesh = to_gradio_3d_orientation(mesh) | |
rv = [] | |
for format in formats: | |
mesh_path = tempfile.NamedTemporaryFile(suffix=f".{format}", delete=False) | |
mesh.export(mesh_path.name) | |
rv.append(mesh_path.name) | |
return rv[0] | |
# warm up | |
_ = generate("a bird", 42) | |
# layout | |
css = """ | |
h1 { | |
text-align: center; | |
display:block; | |
} | |
h2 { | |
text-align: center; | |
display:block; | |
} | |
h3 { | |
text-align: center; | |
display:block; | |
} | |
""" | |
with gr.Blocks(title="TripoSR", css=css) as interface: | |
gr.Markdown( | |
""" | |
# Instant Text-to-3D Mesh Demo | |
### [PeRFlow](https://github.com/magic-research/piecewise-rectified-flow)-T2I + [TripoSR](https://github.com/VAST-AI-Research/TripoSR) | |
Two-stage synthesis: 1) generating images by PeRFlow-T2I with 6-step inference; 2) rendering 3D assests. | |
""" | |
) | |
with gr.Column(): | |
with gr.Row(): | |
output_image = gr.Image(label='Generated Image', height=384, width=384) | |
output_model_obj = gr.Model3D( | |
label="Output 3D Model (OBJ Format)", | |
interactive=False, | |
height=384, width=384, | |
) | |
with gr.Row(): | |
textbox = gr.Textbox(label="Input Prompt", value="a colorful bird") | |
seed = gr.Textbox(label="Random Seed", value=42) | |
# activate | |
textbox.submit( | |
fn=generate, | |
inputs=[textbox, seed], | |
outputs=[output_image], | |
).success( | |
fn=render, | |
inputs=[output_image], | |
outputs=[output_model_obj], | |
) | |
seed.submit( | |
fn=generate, | |
inputs=[textbox, seed], | |
outputs=[output_image], | |
).success( | |
fn=render, | |
inputs=[output_image], | |
outputs=[output_model_obj], | |
) | |
if __name__ == '__main__': | |
parser = argparse.ArgumentParser() | |
parser.add_argument('--username', type=str, default=None, help='Username for authentication') | |
parser.add_argument('--password', type=str, default=None, help='Password for authentication') | |
parser.add_argument('--port', type=int, default=7860, help='Port to run the server listener on') | |
parser.add_argument("--listen", action='store_true', help="launch gradio with 0.0.0.0 as server name, allowing to respond to network requests") | |
parser.add_argument("--share", action='store_true', help="use share=True for gradio and make the UI accessible through their site") | |
parser.add_argument("--queuesize", type=int, default=1, help="launch gradio queue max_size") | |
args = parser.parse_args() | |
interface.queue(max_size=args.queuesize) | |
interface.launch( | |
auth=(args.username, args.password) if (args.username and args.password) else None, | |
share=args.share, | |
server_name="0.0.0.0" if args.listen else None, | |
server_port=args.port | |
) | |