Save and apply XML provided offset to pan/tilt geometries

Author: vanous

fixture.py

@@ -2166,6 +2166,7 @@ def updatePTDirectly(self, geometry, axis_type, value, current_frame):
         else:
             geometry = self.get_object_by_geometry_name(geometry)
         if geometry:
+            value = value + geometry.get("applied_rotation", [0, 0])[offset]
             geometry.rotation_mode = "XYZ"
             geometry.rotation_euler[offset] = value
             if current_frame and self.dmx_cache_dirty:

gdtf.py

@@ -635,6 +635,9 @@ def add_child_position(geometry):
             rotation = geometry_mtx.to_3x3().inverted()
             scale = geometry_mtx.to_scale()
             obj_child.matrix_local = Matrix.LocRotScale(translate, rotation, scale)
+            obj_child.rotation_mode = "XYZ"
+            obj_child["applied_rotation"] = obj_child.rotation_euler
+            # baking into the object did not work, we store the rotation and re-apply it on pan/tilt in render()
 
         def constraint_child_to_parent(parent_geometry, child_geometry):
             if sanitize_obj_name(parent_geometry) not in objs: