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import gradio as gr | |
import plotly.graph_objs as go | |
import trimesh | |
import numpy as np | |
from PIL import Image, ImageDraw | |
import torch | |
from diffusers import StableDiffusionPipeline, StableDiffusionInpaintPipeline | |
import io | |
import matplotlib.pyplot as plt | |
#import pyrender | |
#import scipy | |
# Load the Stable Diffusion model for text-to-image generation and inpainting | |
device = "cuda" if torch.cuda.is_available() else "cpu" | |
pipeline = StableDiffusionPipeline.from_pretrained("CompVis/stable-diffusion-v1-4").to(device) | |
pipeline_inpaint = StableDiffusionInpaintPipeline.from_pretrained( | |
"runwayml/stable-diffusion-inpainting", | |
torch_dtype=torch.float16 | |
).to(device) | |
DEFAULT_OBJ_FILE = "female.obj" | |
DEFAULT_GLB_FILE = "vroid_girl1.glb" | |
DEFAULT_VRM_FILE = "fischl.vrm" | |
DEFAULT_VRM_FILE2 = "woman.vrm" | |
DEFAULT_VRM_FILE3 = "mona.vrm" | |
DEFAULT_TEXTURE = "future.png" | |
DEFAULT_TEXTURE2 = "woman1.jpeg" | |
DEFAULT_TEXTURE3 = "woman2.jpeg" | |
def generate_default_uv(mesh, quality='medium'): | |
""" | |
Generate default UV coordinates for a mesh if UV mapping is missing. | |
""" | |
if quality == 'low': | |
bounds = mesh.bounds | |
width = bounds[1][0] - bounds[0][0] | |
height = bounds[1][1] - bounds[0][1] | |
uv_coords = np.zeros((len(mesh.vertices), 2)) | |
uv_coords[:, 0] = (mesh.vertices[:, 0] - bounds[0][0]) / width | |
uv_coords[:, 1] = (mesh.vertices[:, 1] - bounds[0][1]) / height | |
elif quality == 'medium': | |
height_range = mesh.vertices[:, 2].max() - mesh.vertices[:, 2].min() | |
radius = np.sqrt(mesh.vertices[:, 0]**2 + mesh.vertices[:, 1]**2) | |
uv_coords = np.zeros((len(mesh.vertices), 2)) | |
uv_coords[:, 0] = np.arctan2(mesh.vertices[:, 1], mesh.vertices[:, 0]) / (2 * np.pi) + 0.5 | |
uv_coords[:, 1] = (mesh.vertices[:, 2] - mesh.vertices[:, 2].min()) / height_range | |
elif quality == 'high': | |
radius = np.sqrt(np.sum(mesh.vertices**2, axis=1)) | |
uv_coords = np.zeros((len(mesh.vertices), 2)) | |
uv_coords[:, 0] = np.arctan2(mesh.vertices[:, 1], mesh.vertices[:, 0]) / (2 * np.pi) + 0.5 | |
uv_coords[:, 1] = np.arccos(mesh.vertices[:, 2] / radius) / np.pi | |
else: | |
raise ValueError("Invalid quality parameter. Choose from 'low', 'medium', or 'high'.") | |
return uv_coords | |
def apply_texture(mesh, texture_image, uv_scale, uv_quality='medium'): | |
""" | |
Applies the texture to the mesh with UV scaling. | |
""" | |
if not hasattr(mesh.visual, 'uv') or mesh.visual.uv is None: | |
# If the mesh does not have UV coordinates, generate them | |
print("No UV coordinates found; generating default UV mapping.") | |
uv_coords = generate_default_uv(mesh, quality=uv_quality) | |
else: | |
uv_coords = mesh.visual.uv | |
# Ensure UV coordinates exist | |
if uv_coords is None: | |
raise ValueError("UV coordinates are missing from the mesh.") | |
# Apply UV scaling and ensure it is within valid range | |
uv_coords = np.clip(uv_coords * uv_scale, 0, 1) | |
img_width, img_height = texture_image.size | |
texture_array = np.array(texture_image) | |
face_colors = [] | |
for face in mesh.faces: | |
uv_face = uv_coords[face] | |
pixel_coords = np.round(uv_face * np.array([img_width - 1, img_height - 1])).astype(int) | |
valid_coords = np.all((pixel_coords[:, 0] >= 0) & (pixel_coords[:, 0] < img_width) & | |
(pixel_coords[:, 1] >= 0) & (pixel_coords[:, 1] < img_height)) | |
if valid_coords: | |
face_color = np.mean(texture_array[pixel_coords[:, 1], pixel_coords[:, 0]], axis=0) | |
face_colors.append(face_color / 255.0) | |
else: | |
face_colors.append([0.5, 0.5, 0.5]) | |
face_colors = np.array(face_colors) | |
if len(face_colors) < len(mesh.faces): | |
face_colors = np.pad(face_colors, ((0, len(mesh.faces) - len(face_colors)), (0, 0)), 'constant', constant_values=0.5) | |
return face_colors | |
def load_glb_file(filename): | |
trimesh_scene = trimesh.load(filename) | |
if isinstance(trimesh_scene, trimesh.Scene): | |
mesh = trimesh_scene.dump(concatenate=True) | |
else: | |
mesh = trimesh_scene | |
return mesh | |
def generate_clothing_image(prompt, num_inference_steps): | |
""" | |
Generates the clothing texture based on the provided prompt and number of inference steps. | |
""" | |
image = pipeline(prompt, num_inference_steps=num_inference_steps).images[0] | |
return image | |
def load_vrm_file(filename): | |
try: | |
vrm_data = trimesh.load(filename, file_type='glb') | |
if isinstance(vrm_data, trimesh.Scene): | |
mesh = vrm_data.dump(concatenate=True) | |
else: | |
mesh = vrm_data | |
except Exception as e: | |
raise ValueError(f"Failed to load VRM file: {e}") | |
return mesh | |
def display_3d_object(obj_file, texture_image, light_intensity, ambient_intensity, color, uv_scale, transparency, uv_quality=None): | |
file_extension = obj_file.split('.')[-1].lower() | |
if file_extension == 'vrm': | |
mesh = load_vrm_file(obj_file) | |
try: | |
if texture_image: | |
face_colors = apply_texture(mesh, texture_image, uv_scale, uv_quality) | |
else: | |
face_colors = np.array([color] * len(mesh.faces)) | |
except ValueError as e: | |
face_colors = np.array([color] * len(mesh.faces)) | |
vertices = mesh.vertices | |
faces = mesh.faces | |
fig = go.Figure(data=[ | |
go.Mesh3d( | |
x=vertices[:, 0], | |
y=vertices[:, 1], | |
z=vertices[:, 2], | |
i=faces[:, 0], | |
j=faces[:, 1], | |
k=faces[:, 2], | |
facecolor=face_colors, | |
opacity=transparency, | |
lighting=dict( | |
ambient=ambient_intensity, | |
diffuse=light_intensity, | |
specular=0.8, | |
roughness=0.3, | |
fresnel=0.1 | |
), | |
lightposition=dict( | |
x=100, | |
y=200, | |
z=300 | |
) | |
) | |
]) | |
fig.update_layout(scene=dict(aspectmode='data')) | |
return fig | |
else: | |
if file_extension == 'obj': | |
mesh = trimesh.load(obj_file) | |
elif file_extension == 'glb': | |
mesh = load_glb_file(obj_file) | |
else: | |
raise ValueError("Unsupported file format. Please upload a .obj, .glb, or .vrm file.") | |
if texture_image: | |
face_colors = apply_texture(mesh, texture_image, uv_scale) | |
else: | |
face_colors = np.array([color] * len(mesh.faces)) | |
fig = go.Figure(data=[ | |
go.Mesh3d( | |
x=mesh.vertices[:, 0], | |
y=mesh.vertices[:, 1], | |
z=mesh.vertices[:, 2], | |
i=mesh.faces[:, 0], | |
j=mesh.faces[:, 1], | |
k=mesh.faces[:, 2], | |
facecolor=face_colors, | |
opacity=transparency, | |
lighting=dict( | |
ambient=ambient_intensity, | |
diffuse=light_intensity, | |
specular=0.8, | |
roughness=0.3, | |
fresnel=0.1 | |
), | |
lightposition=dict( | |
x=100, | |
y=200, | |
z=300 | |
) | |
) | |
]) | |
fig.update_layout(scene=dict(aspectmode='data')) | |
return fig | |
def clear_texture(): | |
return None | |
def restore_original(obj_file): | |
return display_3d_object(obj_file, None, 0.8, 0.5, "#D3D3D3", 1.0, 1.0) | |
def update_texture_display(prompt, texture_file, num_inference_steps): | |
if prompt: | |
image = generate_clothing_image(prompt, num_inference_steps) | |
return image | |
elif texture_file: | |
return Image.open(texture_file) | |
return None | |
with gr.Blocks() as demo: | |
gr.Markdown("## 3D Object Viewer with Custom Texture, UV Scale, Transparency, Color, and Adjustable Lighting") | |
with gr.Row(): | |
with gr.Column(scale=1): | |
gr.Markdown("### Texture Options") | |
prompt_input = gr.Textbox(label="Enter a Prompt to Generate Texture", placeholder="Type a prompt...") | |
num_inference_steps_slider = gr.Slider(minimum=5, maximum=100, step=1, value=10, label="Num Inference Steps") | |
generate_button = gr.Button("Generate Texture") | |
texture_file = gr.File(label="Upload Texture file (PNG or JPG, optional)", type="filepath") | |
texture_preview = gr.Image(label="Texture Preview", visible=True) | |
gr.Markdown("### Mapping, Lighting & Color Settings") | |
uv_scale_slider = gr.Slider(minimum=0.1, maximum=5, step=0.1, value=1.0, label="UV Mapping Scale") | |
uv_quality_dropdown = gr.Dropdown(label="UV Quality (for VRM files)", choices=['low', 'medium', 'high'], value='medium') | |
light_intensity_slider = gr.Slider(minimum=0, maximum=1, step=0.1, value=0.8, label="Light Intensity") | |
ambient_intensity_slider = gr.Slider(minimum=0, maximum=1, step=0.1, value=0.5, label="Ambient Intensity") | |
transparency_slider = gr.Slider(minimum=0.1, maximum=1.0, step=0.1, value=1.0, label="Transparency") | |
color_picker = gr.ColorPicker(value="#D3D3D3", label="Object Color") | |
submit_button = gr.Button("Submit") | |
restore_button = gr.Button("Restore") | |
clear_button = gr.Button("Clear") | |
obj_file = gr.File(label="Upload OBJ, GLB, or VRM file", value=DEFAULT_OBJ_FILE, type='filepath') | |
with gr.Column(scale=2): | |
display = gr.Plot(label="3D Viewer") | |
def update_display(file, texture, uv_scale, uv_quality, light_intensity, ambient_intensity, transparency, color, num_inference_steps): | |
file_extension = file.split('.')[-1].lower() | |
texture_image = None | |
if texture: | |
texture_image = Image.open(texture) | |
if file_extension == 'vrm': | |
return display_3d_object(file, texture_image, light_intensity, ambient_intensity, color, uv_scale, transparency, uv_quality) | |
else: | |
return display_3d_object(file, texture_image, light_intensity, ambient_intensity, color, uv_scale, transparency) | |
def toggle_uv_quality_dropdown(file): | |
if file is None: | |
return gr.update(visible=False) | |
file_extension = file.split('.')[-1].lower() | |
return gr.update(visible=(file_extension == 'vrm')) | |
submit_button.click( | |
fn=update_display, | |
inputs=[obj_file, texture_file, uv_scale_slider, uv_quality_dropdown, light_intensity_slider, ambient_intensity_slider, transparency_slider, color_picker, num_inference_steps_slider], | |
outputs=display | |
) | |
obj_file.change(fn=toggle_uv_quality_dropdown, inputs=[obj_file], outputs=uv_quality_dropdown) | |
generate_button.click(fn=update_texture_display, inputs=[prompt_input, texture_file, num_inference_steps_slider], outputs=texture_preview) | |
restore_button.click(fn=restore_original, inputs=[obj_file], outputs=display) | |
clear_button.click(fn=clear_texture, outputs=texture_preview) | |
texture_file.change(fn=update_texture_display, inputs=[prompt_input, texture_file, num_inference_steps_slider], outputs=texture_preview) | |
demo.load(fn=update_display, inputs=[obj_file, texture_file, uv_scale_slider, uv_quality_dropdown, light_intensity_slider, ambient_intensity_slider, transparency_slider, color_picker, num_inference_steps_slider], outputs=display) | |
gr.Examples( | |
examples=[[DEFAULT_VRM_FILE, DEFAULT_TEXTURE], | |
[DEFAULT_OBJ_FILE, None], | |
[DEFAULT_GLB_FILE, None], | |
[DEFAULT_VRM_FILE2, DEFAULT_TEXTURE2], | |
[DEFAULT_VRM_FILE3, DEFAULT_TEXTURE3]], | |
inputs=[obj_file, texture_file], | |
label="Example Files" | |
) | |
demo.launch(debug=True) | |