workshop rework

Content/Python/ue_workshop/lighting.py

@@ -0,0 +1,23 @@
+import unreal
+
+from .camera import look_at
+
+
+def area(scene, name="Light", location=(200, -200, 350), target=(0, 0, 100),
+         intensity=12000, color=(1, 1, 1), size=180):
+    actor = scene.spawn(unreal.RectLight, name, location)
+    light = actor.get_component_by_class(unreal.RectLightComponent)
+    light.set_mobility(unreal.ComponentMobility.MOVABLE)
+    light.set_editor_property("intensity", float(intensity))
+    light.set_editor_property("source_width", float(size))
+    light.set_editor_property("source_height", float(size))
+    light.set_editor_property("attenuation_radius", 2000.0)
+    light.set_light_color(unreal.LinearColor(*color, 1.0))
+    look_at(actor, target)
+    return actor
+
+
+def studio(scene, key_color=(1.0, 0.82, 0.65), fill_color=(0.5, 0.7, 1.0)):
+    return [area(scene, "Key", (200, -250, 350), color=key_color),
+            area(scene, "Fill", (100, 300, 250), intensity=7000, color=fill_color),
+            area(scene, "Rim", (-200, 0, 300), intensity=15000)]