workshop rework

Content/Python/ue_workshop/camera.py

@@ -0,0 +1,30 @@
+import unreal
+
+
+def look_at(actor, target):
+    actor.set_actor_rotation(unreal.MathLibrary.find_look_at_rotation(
+        actor.get_actor_location(), unreal.Vector(*target)), False)
+
+
+def create(scene, location=(450, -550, 300), target=(0, 0, 100), focal_length=45):
+    actor = scene.spawn(unreal.CineCameraActor, "Camera", location)
+    component = actor.get_cine_camera_component()
+    filmback = component.get_editor_property("filmback")
+    filmback.set_editor_property("sensor_width", 36.0)
+    filmback.set_editor_property("sensor_height", 20.25)
+    component.set_editor_property("filmback", filmback)
+    component.set_editor_property("current_focal_length", float(focal_length))
+    focus = component.get_editor_property("focus_settings")
+    focus.set_editor_property("focus_method", unreal.CameraFocusMethod.DISABLE)
+    component.set_editor_property("focus_settings", focus)
+    settings = component.get_editor_property("post_process_settings")
+    settings.set_editor_property("override_auto_exposure_bias", True)
+    settings.set_editor_property("auto_exposure_bias", 0.0)
+    settings.set_editor_property("override_auto_exposure_min_brightness", True)
+    settings.set_editor_property("override_auto_exposure_max_brightness", True)
+    # Extended luminance range interprets these as EV100, not linear brightness.
+    settings.set_editor_property("auto_exposure_min_brightness", 8.0)
+    settings.set_editor_property("auto_exposure_max_brightness", 8.0)
+    component.set_editor_property("post_process_settings", settings)
+    look_at(actor, target)
+    return actor