import

Content/Python/generate_blueprint_turntable.py

@@ -9,6 +9,7 @@ The script creates/saves a small presentation map, so the bindings in the
 sequences and MRQ jobs are reproducible.  Open any generated sequence in
 Sequencer to show the normal camera, camera-cut and transform tracks.
 """
+import sys
 import unreal
 
 
@@ -90,7 +91,12 @@ def _all_skeleton_animations(actor):
 def _set_transform_keys(track, frames, start_location, start_rotation):
     section = track.add_section()
     section.set_range(0, frames)
-    channels = section.get_channels()
+    # UE 5.8 exposes section channels through the SequencerScripting extension
+    # library (MovieScene3DTransformSection itself has no get_channels method).
+    channels = unreal.MovieSceneSectionExtensions.get_channels_by_type(
+        section, unreal.MovieSceneScriptingDoubleChannel)
+    if len(channels) != 9:
+        raise RuntimeError("Expected 9 transform channels, got {0}".format(len(channels)))
     # Translation XYZ, rotation XYZ, scale XYZ.  Key all channels explicitly so
     # the result remains readable/editable in Sequencer.
     values = [start_location.x, start_location.y, start_location.z,
@@ -205,7 +211,8 @@ def generate_turntables(blueprint_path, output_root=DEFAULT_OUTPUT_ROOT,
     camera = unreal.EditorLevelLibrary.spawn_actor_from_class(
         unreal.CineCameraActor, unreal.Vector(origin.x - distance, origin.y, origin.z), unreal.Rotator(0, 0, 0))
     camera.set_actor_label("TT_Camera_" + bp_name)
-    camera.set_actor_rotation((origin - camera.get_actor_location()).rotation(), False)
+    camera.set_actor_rotation(
+        unreal.MathLibrary.find_look_at_rotation(camera.get_actor_location(), origin), False)
     camera.get_cine_camera_component().set_editor_property("current_focal_length", 50.0)
 
     sequences = [_make_sequence("LS_TT_" + bp_name, folder, actor, camera)]
@@ -223,3 +230,19 @@ def generate_turntables(blueprint_path, output_root=DEFAULT_OUTPUT_ROOT,
 
     _log("Created {0} sequence(s) and queued {0} PNG job(s) for {1}.".format(len(sequences), bp_name))
     return sequences
+
+
+def _run_from_console_arguments():
+    """Support `py "script.py" /Game/Path/BP_Name` in the Unreal console."""
+    for argument in sys.argv[1:]:
+        # Dragging an asset into the Output Log can produce
+        # /Script/Engine.Blueprint'/Game/Foo/BP_X.BP_X'; accept that form too.
+        game_index = argument.find("/Game/")
+        if game_index < 0:
+            continue
+        asset_path = argument[game_index:].split("'", 1)[0].split(".", 1)[0]
+        generate_turntables(asset_path)
+        return
+
+
+_run_from_console_arguments()