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| import gradio as gr | |
| import trimesh | |
| import numpy as np | |
| from PIL import Image | |
| import tempfile | |
| def apply_masked_texture(section): | |
| # Load the original mesh | |
| mesh = trimesh.load('train.glb', force='mesh') | |
| # Load the new texture image | |
| im = Image.open('rust_steel.png').convert('RGB') | |
| # Calculate bounding box coordinates | |
| bounds = mesh.bounds | |
| min_bounds, max_bounds = bounds[0], bounds[1] | |
| mid_x = (max_bounds[0] + min_bounds[0]) / 2 | |
| mid_y = (max_bounds[1] + min_bounds[1]) / 2 | |
| mid_z = (max_bounds[2] + min_bounds[2]) / 2 | |
| # Define sections | |
| sections = { | |
| 'upper': np.where(mesh.vertices[:, 2] > mid_z)[0], | |
| 'lower': np.where(mesh.vertices[:, 2] <= mid_z)[0], | |
| 'middle': np.where((mesh.vertices[:, 0] >= min_bounds[0]) & (mesh.vertices[:, 0] <= max_bounds[0]) & | |
| (mesh.vertices[:, 1] >= min_bounds[1]) & (mesh.vertices[:, 1] <= max_bounds[1]) & | |
| (mesh.vertices[:, 2] >= min_bounds[2]) & (mesh.vertices[:, 2] <= max_bounds[2]))[0], | |
| 'top': np.where(mesh.vertices[:, 1] > mid_y)[0], | |
| 'right': np.where(mesh.vertices[:, 0] > mid_x)[0] | |
| } | |
| # Get indices for the selected section | |
| selected_indices = sections[section] | |
| # Copy the original visual properties (colors, UVs) | |
| if mesh.visual.vertex_colors is not None: | |
| new_vertex_colors = np.copy(mesh.visual.vertex_colors) | |
| else: | |
| new_vertex_colors = np.ones((len(mesh.vertices), 4)) * 255 # Assuming original is white or neutral | |
| # Apply the new texture to only the selected section | |
| for idx in selected_indices: | |
| new_vertex_colors[idx, :] = [255, 255, 0, 255] # Example yellow RGBA color | |
| # Apply the new visual properties | |
| textured_mesh = trimesh.Trimesh(vertices=mesh.vertices, faces=mesh.faces, visual=trimesh.visual.ColorVisuals(vertex_colors=new_vertex_colors), validate=True, process=False) | |
| # Save to a temporary file for Gradio visualization | |
| temp_file = tempfile.NamedTemporaryFile(delete=False, suffix='.glb') | |
| textured_mesh.export(temp_file.name, file_type='glb') | |
| temp_file.close() | |
| return temp_file.name | |
| 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") | |
| section_dropdown = gr.Dropdown(choices=['upper', 'lower', 'middle', 'top', 'right'], label="Select Section") | |
| button = gr.Button("Apply Texture to Section") | |
| button.click(apply_masked_texture, inputs=section_dropdown, outputs=modified_model) | |
| app.launch() | |