Simplify 3D in 2D demo

viewport/3d_in_2d/3d_in_2d.gd

@@ -1,45 +1,16 @@
 extends Node2D
 
-# These first 3 members are for the sprite animation.
-const MAX_FRAME_FOR_SPRITE = 4
-const FRAME_SWITCH_TIME = 0.2
-
-var frame_switch_timer = 0
 var viewport_initial_size = Vector2()
 
 onready var viewport = $Viewport
-onready var sprite = $Sprite2D
 onready var viewport_sprite = $ViewportSprite
 
 func _ready():
-	# We want Godot to load everything but be hidden for a bit.
-	viewport_sprite.modulate = Color(1, 1, 1, 0.01)
+	$AnimatedSprite.play()
 	#warning-ignore:return_value_discarded
 	get_viewport().connect("size_changed", self, "_root_viewport_size_changed")
 	viewport_initial_size = viewport.size
 
-	# Assign the sprite's texture to the viewport texture.
-	viewport.set_clear_mode(Viewport.CLEAR_MODE_ONLY_NEXT_FRAME)
-
-	# Let two frames pass to make sure the screen was captured.
-	yield(get_tree(), "idle_frame")
-	yield(get_tree(), "idle_frame")
-	viewport_sprite.texture = viewport.get_texture()
-	# Hide a little bit longer just in case.
-	for _unused in range(50):
-		yield(get_tree(), "idle_frame")
-	viewport_sprite.modulate = Color.white # Default modulate color.
-
-
-# Simple frame-based animation.
-func _process(delta):
-	frame_switch_timer += delta
-	if frame_switch_timer >= FRAME_SWITCH_TIME:
-		frame_switch_timer -= FRAME_SWITCH_TIME
-		sprite.frame += 1
-	if sprite.frame > MAX_FRAME_FOR_SPRITE:
-		sprite.frame = 0
-
 
 # Called when the root's viewport size changes (i.e. when the window is resized).
 # This is done to handle multiple resolutions without losing quality.
@@ -47,4 +18,4 @@ func _root_viewport_size_changed():
 	# The viewport is resized depending on the window height.
 	# To compensate for the larger resolution, the viewport sprite is scaled down.
 	viewport.size = Vector2.ONE * get_viewport().size.y
-	viewport_sprite.scale = Vector2.ONE * viewport_initial_size.y / get_viewport().size.y
+	viewport_sprite.scale = Vector2(1, -1) * viewport_initial_size.y / get_viewport().size.y

viewport/3d_in_2d/3d_in_2d.tscn

@@ -1,24 +1,43 @@
-[gd_scene load_steps=4 format=2]
+[gd_scene load_steps=11 format=2]
 
 [ext_resource path="res://3d_in_2d.gd" type="Script" id=1]
 [ext_resource path="res://robot_demo.png" type="Texture" id=2]
 [ext_resource path="res://robot_3d.tscn" type="PackedScene" id=3]
 
+[sub_resource type="ViewportTexture" id=1]
+viewport_path = NodePath("Viewport")
+
+[sub_resource type="AtlasTexture" id=2]
+atlas = ExtResource( 2 )
+region = Rect2( 0, 0, 64, 64 )
+
+[sub_resource type="AtlasTexture" id=3]
+atlas = ExtResource( 2 )
+region = Rect2( 64, 0, 64, 64 )
+
+[sub_resource type="AtlasTexture" id=4]
+atlas = ExtResource( 2 )
+region = Rect2( 128, 0, 64, 64 )
+
+[sub_resource type="AtlasTexture" id=5]
+atlas = ExtResource( 2 )
+region = Rect2( 192, 0, 64, 64 )
+
+[sub_resource type="AtlasTexture" id=6]
+atlas = ExtResource( 2 )
+region = Rect2( 256, 0, 64, 64 )
+
+[sub_resource type="SpriteFrames" id=7]
+animations = [ {
+"frames": [ SubResource( 2 ), SubResource( 3 ), SubResource( 4 ), SubResource( 5 ), SubResource( 6 ) ],
+"loop": true,
+"name": "default",
+"speed": 5.0
+} ]
+
 [node name="3Din2D" type="Node2D"]
 script = ExtResource( 1 )
 
-[node name="Sprite2D" type="Sprite" parent="."]
-position = Vector2( 339.942, 311.204 )
-scale = Vector2( 3, 3 )
-texture = ExtResource( 2 )
-vframes = 2
-hframes = 16
-frame = 4
-
-[node name="ViewportSprite" type="Sprite" parent="."]
-position = Vector2( 600, 320 )
-rotation = 3.14159
-
 [node name="Viewport" type="Viewport" parent="."]
 size = Vector2( 300, 300 )
 own_world = true
@@ -29,6 +48,16 @@ usage = 3
 
 [node name="Robot3D" parent="Viewport" instance=ExtResource( 3 )]
 
+[node name="ViewportSprite" type="Sprite" parent="."]
+position = Vector2( 650, 300 )
+scale = Vector2( 1, -1 )
+texture = SubResource( 1 )
+
+[node name="AnimatedSprite" type="AnimatedSprite" parent="."]
+position = Vector2( 350, 300 )
+scale = Vector2( 3, 3 )
+frames = SubResource( 7 )
+
 [node name="Camera2D" type="Camera2D" parent="."]
 offset = Vector2( 512, 300 )
 current = true

viewport/3d_in_2d/robot_3d.tscn

@@ -225,7 +225,7 @@ transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 2.75 )
 fov = 65.0
 near = 0.1
 
-[node name="OmniLight" type="OmniLight" parent="."]
+[node name="OmniLight1" type="OmniLight" parent="."]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -2.25091, 1.43155, 2.15467 )
 light_color = Color( 1, 0.915375, 0.816406, 1 )