[3.x] Physics Interpolation - automatic resets for Camera2D and TileMap

scene/2d/camera_2d.cpp

@@ -318,6 +318,14 @@ void Camera2D::_notification(int p_what) {
 			first = true;
 			_set_current(current);
 
+			// Note that NOTIFICATION_RESET_PHYSICS_INTERPOLATION
+			// is automatically called before this because Camera2D is inherited
+			// from CanvasItem. However, the camera transform is not up to date
+			// until this point, so we do an extra manual reset.
+			if (is_physics_interpolated_and_enabled()) {
+				_interpolation_data.xform_curr = get_camera_transform();
+				_interpolation_data.xform_prev = _interpolation_data.xform_curr;
+			}
 		} break;
 		case NOTIFICATION_EXIT_TREE: {
 			const bool viewport_valid = !custom_viewport || ObjectDB::get_instance(custom_viewport_id);

scene/2d/tile_map.cpp

@@ -132,6 +132,17 @@ void TileMap::_notification(int p_what) {
 			}
 
 		} break;
+
+		case NOTIFICATION_RESET_PHYSICS_INTERPOLATION: {
+			if (is_visible_in_tree() && is_physics_interpolated_and_enabled()) {
+				for (Map<PosKey, Quadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
+					Quadrant &q = E->get();
+					for (List<RID>::Element *F = q.canvas_items.front(); F; F = F->next()) {
+						VisualServer::get_singleton()->canvas_item_reset_physics_interpolation(F->get());
+					}
+				}
+			}
+		} break;
 	}
 }
 
@@ -744,6 +755,13 @@ void TileMap::update_dirty_quadrants() {
 			VisualServerCanvasHelper::tilemap_end();
 		}
 
+		// Reset physics interpolation for any recreated canvas items.
+		if (is_physics_interpolated_and_enabled() && is_visible_in_tree()) {
+			for (List<RID>::Element *F = q.canvas_items.front(); F; F = F->next()) {
+				VisualServer::get_singleton()->canvas_item_reset_physics_interpolation(F->get());
+			}
+		}
+
 		dirty_quadrant_list.remove(dirty_quadrant_list.first());
 		quadrant_order_dirty = true;
 	}