update example

Author: guillaumeriousat

demo/example.gd

@@ -1,6 +1,8 @@
 extends Node
 
 func _ready() -> void:
-	print(%OrbbecDevices.get_devices_ips())
-	%OrbbecPointCloud.set_device_from_ip("10.10.30.182")
+	var ips = %OrbbecDevices.get_devices_ips()
+	ips.sort()
+	print(ips)
+	%OrbbecPointCloud.set_device_from_ip(ips[0])
 	%OrbbecPointCloud.start_stream()

demo/example.tscn

@@ -14,6 +14,7 @@ script = ExtResource("1_jdh55")
 unique_name_in_owner = true
 
 [node name="OrbbecPointCloud" type="OrbbecPointCloud" parent="."]
+thinning = 0.0
 unique_name_in_owner = true
 
 [node name="WorldEnvironment" type="WorldEnvironment" parent="."]

demo/multi_mesh_instance_3d.gd

@@ -1,12 +1,13 @@
 extends MultiMeshInstance3D
 
 var points: PackedVector3Array
+var raw_points: PackedFloat32Array
 var redraw:bool = false
 
 func _ready():
 	multimesh = MultiMesh.new()
 	multimesh.transform_format = MultiMesh.TRANSFORM_3D
-		
+
 	var pmesh := PointMesh.new()
 	var material := StandardMaterial3D.new()
 	material.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
@@ -19,14 +20,10 @@ func _ready():
 func _process(_delta):
 	if redraw:
 		multimesh.instance_count = len(points)
-		# TODO: there is a way to set a whole PackedFloat32Array as the multimesh's buffer.
-		# This may be faster than iterating and creating a transform3D.
-		# see https://docs.godotengine.org/en/stable/classes/class_renderingserver.html#class-renderingserver-method-multimesh-set-buffer
-		# it references rendering server but it works in gdscript too. We could even generate the packed array in C++ directly.
-		for i in multimesh.instance_count:
-			multimesh.set_instance_transform(i, Transform3D(Basis(), points[i]))   
+		multimesh.buffer = raw_points
 		redraw = false 
 
-func _on_orbbec_point_cloud_frame(new_point_cloud_frame: PackedVector3Array) -> void:
+func _on_orbbec_point_cloud_frame(new_point_cloud_frame: PackedVector3Array, raw_buffer: PackedFloat32Array) -> void:
 	points = new_point_cloud_frame
+	raw_points = raw_buffer
 	redraw = true