Export Mesh with ShapesKeys - Blender 4.5

Export_MeshwithShapeKeys.py

import bpy

# ——— CONFIGURE THIS ———
export_path = r"Y:\My Drive\Libraries\Escena Drive\STUDIO\Atrapados\3D\OBJ\Characters\Alex\Eyes\blendshape_export.fbx"
# ————————————————————

# 1) Get and validate the active object
obj = bpy.context.active_object
if not obj or obj.type != 'MESH':
    raise RuntimeError("Please select an active mesh object before exporting.")

# 2) Deselect everything, then select only the target mesh
bpy.ops.object.select_all(action='DESELECT')
obj.select_set(True)
bpy.context.view_layer.objects.active = obj

# 3) Call the FBX exporter with a robust set of options
bpy.ops.export_scene.fbx(
    filepath=export_path,                     # Where to write the file :contentReference[oaicite:6]{index=6}
    check_existing=True,                      # Warn if overwriting :contentReference[oaicite:7]{index=7}
    filter_glob="*.fbx",                      # File browser filter :contentReference[oaicite:8]{index=8}
    use_selection=True,                       # Only export the selected mesh :contentReference[oaicite:9]{index=9}
    global_scale=1.0,                         # Keep 1:1 scale :contentReference[oaicite:10]{index=10}
    apply_unit_scale=True,                    # Apply Blender unit scale :contentReference[oaicite:11]{index=11}
    apply_scale_options='FBX_SCALE_NONE',     # Use local object transforms only :contentReference[oaicite:12]{index=12}
    use_space_transform=True,                 # Write axis-space transforms :contentReference[oaicite:13]{index=13}
    bake_space_transform=False,               # Don’t bake transforms into geometry :contentReference[oaicite:14]{index=14}
    object_types={'MESH'},                    # Export only mesh objects :contentReference[oaicite:15]{index=15}
    use_mesh_modifiers=True,                  # Apply modifiers before export :contentReference[oaicite:16]{index=16}
    use_mesh_modifiers_render=True,           # Use render‐time modifier settings :contentReference[oaicite:17]{index=17}
    mesh_smooth_type='OFF',                   # No auto‐smoothing :contentReference[oaicite:18]{index=18}
    use_custom_props=False,                   # Don’t include custom Blender props :contentReference[oaicite:19]{index=19}
    add_leaf_bones=False,                     # Suppress extra leaf bones :contentReference[oaicite:20]{index=20}
    bake_anim=True,                           # Bake all animations (incl. Shape Key keys) :contentReference[oaicite:21]{index=21}
    bake_anim_use_all_actions=True,           # Export every action as FBX clips :contentReference[oaicite:22]{index=22}
    bake_anim_force_startend_keying=True,     # Force keys at start/end :contentReference[oaicite:23]{index=23}
    path_mode='AUTO',                         # Embed textures & automatically manage paths :contentReference[oaicite:24]{index=24}
    axis_forward='-Z',                        # Match Blender’s FBX forward axis :contentReference[oaicite:25]{index=25}
    axis_up='Y'                               # Match Blender’s FBX up axis :contentReference[oaicite:26]{index=26}
)

print(f"✅ Exported '{obj.name}' with all Shape Keys to:\n   {export_path}")