app.py

import gradio as gr
import trimesh
import numpy as np
from PIL import Image
import io

def visualize_texture(x_min, x_max, y_min, y_max, z_min, z_max):
    # Load the GLB file
    mesh = trimesh.load('train.glb', force='mesh')

    # Load the texture image
    im = Image.open('defect.jpg')
    im = im.convert('RGB')  # Ensure the image is in RGB format

    # Create UV coordinates for the mesh
    uv = np.random.rand(len(mesh.vertices), 2)

    # Determine vertices within the specified bounds
    yellow_indices = [i for i, vertex in enumerate(mesh.vertices) if x_min <= vertex[0] <= x_max and y_min <= vertex[1] <= y_max and z_min <= vertex[2] <= z_max]

    # Update UV coordinates for identified vertices
    material = trimesh.visual.texture.SimpleMaterial(image=im)
    new_uv = np.zeros_like(uv)
    new_uv[yellow_indices, :] = uv[yellow_indices, :]
    
    color_visuals = trimesh.visual.TextureVisuals(uv=new_uv, image=im, material=material)

    # Apply the texture to the original mesh
    textured_mesh = trimesh.Trimesh(vertices=mesh.vertices, faces=mesh.faces, visual=color_visuals, validate=True, process=False)
    modified_model = textured_mesh.export('trainm.glb')
    return modified_model

with gr.Blocks() as app:
    gr.Markdown("### 3D Model Texture Application")
    original_model = gr.Model3D('train.glb', label="Original Model")
    modified_model = gr.Model3D(label="Textured Model")
    
    with gr.Row():
        x_min = gr.Slider(minimum=-100, maximum=100, label="X Min")
        x_max = gr.Slider(minimum=-100, maximum=100, label="X Max")
    with gr.Row():
        y_min = gr.Slider(minimum=-100, maximum=100, label="Y Min")
        y_max = gr.Slider(minimum=-100, maximum=100, label="Y Max")
    with gr.Row():
        z_min = gr.Slider(minimum=-100, maximum=100, label="Z Min")
        z_max = gr.Slider(minimum=-100, maximum=100, label="Z Max")

    button = gr.Button("Visualize Texture")
    button.click(visualize_texture, inputs=[x_min, x_max, y_min, y_max, z_min, z_max], outputs=[modified_model])

app.launch()