Blender Convert GLB

import bpy
import os

# Input .glb file path
input_file = r"path_to_your_file.glb"  # Replace with your .glb file path (use raw string `r""` for Windows paths)

# Normalize the path to use forward slashes
input_file = input_file.replace("\\", "/")

# Automatically determine output paths
base_dir = os.path.dirname(input_file)
file_name = os.path.splitext(os.path.basename(input_file))[0]
output_texture_dir = os.path.join(base_dir, file_name + "_textures").replace("\\", "/")
output_file = os.path.join(base_dir, file_name + ".fbx").replace("\\", "/")

# Ensure the texture directory exists
if not os.path.exists(output_texture_dir):
    os.makedirs(output_texture_dir)

# Clear existing scene data
bpy.ops.wm.read_factory_settings(use_empty=True)

# Import the .glb file
bpy.ops.import_scene.gltf(filepath=input_file)

# Extract textures from materials
for material in bpy.data.materials:
    if material.use_nodes:  # Ensure material uses node-based system
        for node in material.node_tree.nodes:
            if node.type == 'TEX_IMAGE':  # Look for image texture nodes
                image = node.image
                if image:
                    # Generate texture path
                    texture_path = os.path.join(output_texture_dir, f"{image.name}.png").replace("\\", "/")

                    if image.filepath:
                        # Try to copy texture from its existing path
                        try:
                            original_path = bpy.path.abspath(image.filepath).replace("\\", "/")
                            if os.path.exists(original_path):
                                texture_path = os.path.join(output_texture_dir,
                                                            os.path.basename(original_path)).replace("\\", "/")
                                if not os.path.exists(texture_path):
                                    with open(original_path, "rb") as src, open(texture_path, "wb") as dst:
                                        dst.write(src.read())
                                print(f"Texture copied: {texture_path}")
                        except Exception as e:
                            print(f"Failed to copy texture {image.name}: {e}")
                    else:
                        # Save rendered texture if no file path is found
                        image.save_render(texture_path)
                        print(f"Texture saved: {texture_path}")

# Export the scene to .fbx
bpy.ops.export_scene.fbx(filepath=output_file)
print(f"FBX file saved: {output_file}")
print(f"Textures saved in folder: {output_texture_dir}")