gltf2obj.py

# May need to have python 3.10 or higher installed
# Use blender to convert .gltf file to .obj file
#
import bpy
import sys


# Get the arguments passed to the script, skipping the first three
# sys.argv[0] is blender's executable, sys.argv[1] is '-P', sys.argv[2] is the script name
args = sys.argv[1:]

# Ensure two arguments are passed for input and output file paths
if len(args) != 2:
    print("Usage: gltf2obj.py <input_gltf_file> <output_obj_file>")
    sys.exit(1)

input_gltf_file, output_obj_file = args

# Delete the default cube (or any other objects in the scene)
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete()

# Load the .gltf file
bpy.ops.import_scene.gltf(filepath=input_gltf_file)

# Export the scene to .obj
bpy.ops.wm.obj_export(filepath=output_obj_file)