diff --git a/core/IvmiScene.gd b/core/IvmiScene.gd
index daabd5ee3579cc8b71b33c86f7fb6a0d3b7cec3d..6e1138617fe3aefe220fdd89a0e977b9b6d9413d 100644
--- a/core/IvmiScene.gd
+++ b/core/IvmiScene.gd
@@ -74,25 +74,35 @@ var _ivmi_node = load("res://addons/ivmi-builder/core/IvmiNode.gd")
 
 func _ready():
 	
-	print("Creating IvmiScene")
+	print("IVMI : Creating IvmiScene")
 	
 	_is_2D=true
 	match _xr_mode :
 		XRMode.OpenXr :
 			_xr_interface = XRServer.find_interface("OpenXR")
 			if _xr_interface and _xr_interface.initialize():
-
 				#remove v-sync
-				DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_DISABLED)
+				#DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_DISABLED)
 				get_viewport().use_xr = true
-				_xr_interface.play_area_changed.connect(_on_play_area_changed)
+				#_xr_interface.play_area_changed.connect(_on_play_area_changed)
 				_is_2D = false
-				if _open_xr_passthrough :
-					get_viewport().transparent_bg=true
-					_xr_interface.start_passthrough()
-				else:
-					print("Error : Could not activate OpenXR Passthrough")
 				print("IVMI : Initialised OpenXR Interface")
+				if _open_xr_passthrough :
+					var pt : bool = true
+					if _xr_interface.is_passthrough_supported():
+						if !_xr_interface.start_passthrough():
+							pt=false
+						else:
+							var modes = _xr_interface.get_supported_environment_blend_modes()
+							if _xr_interface.XR_ENV_BLEND_MODE_ALPHA_BLEND in modes:
+								_xr_interface.set_environment_blend_mode(_xr_interface.XR_ENV_BLEND_MODE_ALPHA_BLEND)
+							else:
+								pt=false
+					if pt :
+						get_viewport().transparent_bg=true
+						print("IVMI : Activated OpenXR Passthrough")
+					else:
+						print("Error : Could not activate OpenXR Passthrough")
 			else:
 					print("Error : Could not initialize OpenXR interface")
 		XRMode.ScreenVr:
@@ -237,7 +247,7 @@ func _process(delta) :
 								_osc_to_pd.set_output(_osc_output_address, _osc_output_port)
 								var local_addr = "127.0.0.1"
 								for addr in IP.get_local_addresses() :
-									if addr!="127.0.0.1" and not ":" in addr :
+									if not ":" in addr :
 										local_addr = addr
 								_osc_to_pd.send_msg("/ivmi/hello_from_gd","sf",[local_addr, _input_port])
 
diff --git a/core/ivmi_scene.pd b/core/ivmi_scene.pd
index 37b9757c9ded8862b33ead7d17e430a0b625b7b4..4baa00c9f5157fc6cb5889f14880d4ea693903a1 100644
Binary files a/core/ivmi_scene.pd and b/core/ivmi_scene.pd differ