Facegen obj to fbx(with shapekeys)

import bpy
import os
import glob

# File paths (Update if needed)
sf_folder = r"C:\Users\User\Desktop\sf"
base_mesh_path = os.path.join(sf_folder, "ls.obj")
output_fbx_path = os.path.join(sf_folder, "ls.fbx")

# Clear existing objects in the scene
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete()

# Import the base mesh (ls.obj)
bpy.ops.import_scene.obj(filepath=base_mesh_path)
base_obj = bpy.context.selected_objects[0]
base_obj.name = "BaseMesh"

# Find all blendshape files (expressions, modifiers, phonemes)
blendshape_files = glob.glob(os.path.join(sf_folder, "ls_Expression*.obj")) + \
glob.glob(os.path.join(sf_folder, "ls_Modifier*.obj")) + \
glob.glob(os.path.join(sf_folder, "ls_Phoneme*.obj"))

# Process each blendshape
for blendshape_path in blendshape_files:
blendshape_name = os.path.basename(blendshape_path).replace(".obj", "")

# Import blendshape mesh
bpy.ops.import_scene.obj(filepath=blendshape_path)
blendshape_obj = bpy.context.selected_objects[0]

# Create Basis shape key if not exists
if base_obj.data.shape_keys is None:
base_obj.shape_key_add(name="Basis")

# Create new shape key
shape_key = base_obj.shape_key_add(name=blendshape_name)

# Transfer vertex positions
for i, vert in enumerate(blendshape_obj.data.vertices):
shape_key.data[i].co = vert.co

# Remove the imported blendshape mesh
bpy.data.objects.remove(blendshape_obj, do_unlink=True)

# Export the final FBX
bpy.ops.export_scene.fbx(filepath=output_fbx_path, use_selection=False, apply_unit_scale=True)

print("FBX exported successfully:", output_fbx_path)