app.py

import gradio as gr
import os

def load_mesh_with_info(mesh_file):
    if not mesh_file:
        return None, "No file selected"
    
    file_size = os.path.getsize(mesh_file) / 1024
    return mesh_file, f"File: {os.path.basename(mesh_file)}, Size: {file_size:.2f} KB"

with gr.Blocks() as demo:
    gr.Markdown(
        """
        # [Three](https://huggingface.co/spaces/sudo-soldier/three)
        """
    )

    with gr.Row():
        model_input = gr.Model3D(label="Upload a 3D Model")
        file_info = gr.Text(label="File Info")

    model_output = gr.Model3D(clear_color=[0.1, 0.1, 0.1, 1.0], label="Preview Model")

    model_input.change(load_mesh_with_info, inputs=model_input, outputs=[model_output, file_info])

    examples = [
        [os.path.join(os.path.dirname(__file__), "files/model1.glb")],
        [os.path.join(os.path.dirname(__file__), "files/model2.glb")],
        [os.path.join(os.path.dirname(__file__), "files/model3.glb")],
        [os.path.join(os.path.dirname(__file__), "files/model4.glb")],
    ]

    demo.examples = examples

if __name__ == "__main__":
    demo.launch()